All Unix Solutions on Gang of Coders

Total of 665 Unix Solutions

How can I check if a directory exists in a Bash shell script?

Bash Shell Unix Posix

How do I remove the passphrase for the SSH key without having to create a new key?

Unix Ssh Passwords Openssh Passphrase

Which shell I am using in mac

Bash Macos Shell Unix Zsh

Command line command to auto-kill a command after a certain amount of time

Macos Unix Command Line Utilities Cpu Usage

How to get diff to report summary of new, changed and deleted lines

nginx error connect to php5-fpm.sock failed (13: Permission denied)

Close Terminal window from within shell script (Unix)?

Macos Shell Unix Command

Find files of specified size using bash in Unix

How do I kill this tomcat process in Terminal?

Java Linux Unix Tomcat Terminal

How to tail all the log files inside a folder and subfolders?

Unix Logging Command Line Tail

How can I tell if PostgreSQL's Autovacuum is running on UNIX?

Postgresql Unix Autovacuum

How to pipe the results of 'find' to mv in Linux

OSError - Errno 13 Permission denied

Python Django Apache Unix

Delete newline in Vim

Unix Vim Shell Ssh Vi

What is a bus error? Is it different from a segmentation fault?

C Unix Segmentation Fault Bus Error

What is the Unix command to create a hardlink to a directory in OS X?

Macos Bash Filesystems Unix Ln

documenting shell scripts' parameters

Linux Unix Shell

What is an easy way to do a sorted diff between two files?

Remove all files in a directory

Python Unix File Management

How do you extract a JAR in a UNIX filesystem with a single command and specify its target directory using the JAR command?

Java Python Linux Unix Jar

How to provide password to a command that prompts for one in bash?

Bash Unix Passwords

Which of sprintf/snprintf is more secure?

C Security Unix Printf Secure Coding

fork() and output

C++Linux Unix Fork

cron command to run every 12 hours

Grab the filename in Unix out of full path

Bash Shell Unix Ksh

sudo: npm: command not found

node.js Linux Unix Npm

SSH configuration: override the default username

Unix Ssh Ssh Config

How to skip saturday and sunday in a cron expression?

Linux Unix Cron Quartz Scheduler

Is there a grep equivalent for find's -print0 and xargs's -0 switches?

Bash Unix Grep Find Xargs

chown illegal group name (mac os x)

Macos Unix Terminal Chown

Pass command line arguments via sbatch

Bash Shell Unix Slurm

How can I generate Unix timestamps?

Unix Unix Timestamp

UNIX, get environment variable

Unix Shell Environment Echo

How to extract just plain text from .doc & .docx files?

Unix Extract Docx Doc Text Extraction

How do I calculate the log of a number using bc?

Get the exit code for a command in Bash and KornShell (ksh)

Bash Unix Ksh Exit

check duration of audio files on the command-line

How do I syntax check a Bash script without running it?

Linux Bash Unix Syntax Gnu

How to check if the variable value in AWK script is null or empty?

Why does RSA encrypted text give me different results for the same text

Unix Terminal Cryptography Openssl Rsa

Use curl to download a Dropbox folder via shared link (not public link)

Macos Bash Unix Curl Dropbox

Difference between Cron and Crontab?

gpg decryption fails with no secret key error

Unix Encryption Public Key-Encryption Gnupg

Is there a definitive *nix command line tool for inspecting protocol buffers?

Unix Command Line-Interface Protocol Buffers

Rename multiple files based on pattern in Unix

File Unix Rename Batch Rename

Getting absolute path of a file

C Unix Path Filesystems Absolute

Commenting out a set of lines in a shell script

Unix Shell Comments Editing

Uppercasing First Letter of Words Using SED

Linux Bash Unix Awk Sed

When does a UNIX directory change its timestamp

Unix Unix Timestamp

Delete specific line number(s) from a text file using sed?

Unix Sed Line Numbers

How to count occurrences of a word in all the files of a directory?

Linux Unix Count Find Grep

How to move (and overwrite) all files from one directory to another?

less-style markdown viewer for UNIX systems

node.js Bash Unix Markdown Less Unix

How to get a file in Windows with a colon in the filename?

Windows Unix Filenames Colon

Is there a way to make bash job control quiet?

Bash Shell Unix Parallel Processing

How to remove blank lines from a Unix file

Unix Awk Blank Line

Fastest way to tell if two files have the same contents in Unix/Linux?

Linux File Unix Diff

How to move a running process to background (UNIX)

Unix Ssh Terminal

Randomly Pick Lines From a File Without Slurping It With Unix

Linux Unix Awk Random Sample File Processing

How to understand the output of time command?

Python spawn off a child subprocess, detach, and exit

Python Linux Unix Subprocess

How to set font color for STDOUT and STDERR

Unix Shell Terminal

How to convert string to integer in UNIX

Linux Shell Unix Interactive

What does $@ mean in a shell script?

Linux Bash Shell Unix Sh

How do I get GMT time in Unix?

Linux Date Unix Unix Timestamp

What does it mean to write to stdout in C?

Running Groovy script from the command line

What is a unix command for deleting the first N characters of a line?

Bash Unix Command Truncate

Killing a defunct process on UNIX system

Unix Process Kill Zombie Process

How to include .htaccess in tar commands?

How to uncompress a tar.gz in another directory

After changing /etc/profile, what do I have to do to reset my shell?

How can I pipe initial input into process which will then be interactive?

Linux Unix Pipe

How to remove carriage return from a variable in shell script

Pipe input into a script

Shell Unix Pipe Ksh

How can I exclude all “permission denied” result lines from “grep”?

Linux Unix Permissions Grep

How to get the last line of a file using cat command

Macos Shell Unix Cat

Quick ls command

Bash Unix Command Ls

UNIX socket implementation for Java?

Java Unix Jdbc Unix Socket

Shortest command to calculate the sum of a column of output on Unix?

Unix Math Shell Ksh

Canonical vs. non-canonical terminal input

Unix Input Curses

How can I tell if a file is older than 30 minutes from /bin/sh?

PHP exec - check if enabled or disabled

Php Linux Unix Exec

After forking, are global variables shared?

C Linux Unix Fork

Count occurrences of character per line/field on Unix

Linux Bash Shell Unix Scripting

Is the UNIX `time` command accurate enough for benchmarks?

Linux Unix Profiling Benchmarking

Convert string to date in bash

String Bash Shell Unix Date

Configure cron job to run every 15 minutes on Jenkins

Unix Jenkins Cron

How do I remove first 5 characters in each line in a text file using vi?

Regex Unix Text Command Vi

Starting mongod fork, ERROR: child process failed, exited with error number 1

Mongodb Unix Amazon Ec2

What do pty and tty mean?

C Unix Networking Tty Vocabulary

Ansible: best practice for maintaining list of sudoers

Python Unix Ansible User Management

How does fork() know when to return 0?

C Unix Process Fork Internals

How to use 'find' to search for files created on a specific date?

Sorting data based on second column of a file

Bash Shell Unix

How can I convert tabs to spaces in every file of a directory?

Bash Shell Unix Spaces In Place

What are the uses of the exec command in shell scripts?

Shell Unix Exec

grep without showing path/file:line

Linux Unix Grep Find

Environment variable substitution in sed

Linux Unix Shell Sed

How to list all users in a Linux group?

find without recursion

Unix Find Shell

What are the differences between .so and .dylib on macOS?

C++C Macos Unix

How do I list the functions defined in my shell?

Bash Shell Function Unix

Which characters need to be escaped when using Bash?

Bash Shell Unix Escaping Special Characters

How to kill a process running on particular port in Linux?

Linux Unix Port Kill Process

How to sort a file in-place?

Linux Bash Shell Unix

How to find out what group a given user has?

Linux Unix Command Line Sysadmin

Java: Date from unix timestamp

Java Unix Timestamp

How do you normalize a file path in Bash?

Linux Bash Unix Shell

How to grep a string in a directory and all its subdirectories?

Linux Unix Grep Centos

How to check if a file is empty in Bash?

Linux Bash Unix File Handling Is Empty

Syntax highlighting/colorizing cat

Unix Syntax Highlighting Color Scheme

Getting root permissions on a file inside of vi?

When should I wrap quotes around a shell variable?

Linux Bash Shell Unix Quotes

Command to change the default home directory of a user

Linux Shell Unix

Remove carriage return in Unix

Unix Carriage Return

Subtract two variables in Bash

Bash Shell Unix

Execute a command without keeping it in history

Linux Bash Unix

List files recursively in Linux CLI with path relative to the current directory

Linux Unix Recursion Ls

How can I use xargs to copy files that have spaces and quotes in their names?

Linux Macos Unix Command Line Xargs

Using ls to list directories and their total sizes

How to permanently set $PATH on Linux/Unix

Linux Bash Unix Path Zsh

What is the Difference Between read() and recv() , and Between send() and write()?

C Sockets Unix Network Programming Posix

Listing only directories in UNIX

How to get overall CPU usage (e.g. 57%) on Linux

Linux Bash Unix Cpu

In Unix, can I run 'make' in a directory without cd'ing to that directory first?

Linux Unix Makefile

How to generate a core dump in Linux on a segmentation fault?

Linux Bash Unix Coredump Tcsh

Find all files with name containing string

Linux Unix Command Line Locate

Shell script "for" loop syntax

Unix Syntax Shell

How to pipe list of files returned by find command to cat to view all the files

How do I limit the number of results returned from grep?

Linux Bash Unix Sh

Quick unix command to display specific lines in the middle of a file?

Linux Bash Unix Text

Compare a string using sh shell

What is the meaning of "POSIX"?

Linux Unix Posix Terminology

How to make child process die after parent exits?

C Linux Unix Process Fork

What is a .pid file and what does it contain?

What is the difference between tar and zip?

Unix Compression Zip Tar

Can the Unix list command 'ls' output numerical chmod permissions?

Unix Command Line Permissions

Differences between fork and exec

C Unix Fork Exec

How to use "/" (directory separator) in both Linux and Windows in Python?

Python Linux Windows Unix

What does the brk() system call do?

C Linux Unix Memory Management Brk

How to concatenate multiple lines of output to one line?

Linux Bash Unix Grep Tr

Add up a column of numbers at the Unix shell

Linux Unix Shell

How do I pause my shell script for a second before continuing?

Bash Shell Unix

Suppress echo of command invocation in makefile?

Linux Unix Makefile Posix

How to get the command line args passed to a running process on unix/linux systems?

Linux Unix Aix Hp Ux Sunos

How to copy files across computers using SSH and MAC OS X Terminal

Macos Unix File Terminal Copying

bash HISTSIZE vs. HISTFILESIZE?

How do I get bash completion to work with aliases?

Git Bash Shell Unix Autocomplete

How do I list all cron jobs for all users?

How to get full path of a file?

Linux File Unix Path

How can I exclude directories from grep -R?

Linux Unix Grep

What is the difference between a symbolic link and a hard link?

Unix Symlink Hardlink

Given two directory trees, how can I find out which files differ by content?

Linux Bash Shell Unix Diff

Copy folder recursively, excluding some folders

Bash Unix Shell Scripting

Tar archiving that takes input from a list of files

Linux Unix Archive Tar

How to merge two files line by line in Bash

Crontab - Run in directory

Unix Directory Relative Path Crontab

How can I convert a Unix timestamp to DateTime and vice versa?

C#Datetime Unix Epoch Data Conversion

How do I use the lines of a file as arguments of a command?

Linux Unix Shell Command Line Command Line-Arguments

SSH Port forwarding in a ~/.ssh/config file?

Linux Macos Unix Ssh

How to run the sftp command with a password from Bash script?

Bash Shell Unix Ssh Sftp

linux: kill background task

Linux Bash Unix Kill Job Control

How to append contents of multiple files into one file

Linux Bash Unix

How to send data to local clipboard from a remote SSH session

Linux Macos Unix Shell Clipboard

How to use find command to find all files with extensions from list?

Unix Shell Find

Removing colors from output

Bash Unix Colors Console Ansi Escape

Run ssh and immediately execute command

How to get key names from JSON using jq

Json Shell Unix Key Jq

How to get the current directory in a C program?

C Unix Working Directory

How can I pretty-print JSON in a shell script?

Json Unix Command Line Format Pretty Print

Use grep --exclude/--include syntax to not grep through certain files

Unix Search Shell Command Line Grep

Sorting a tab delimited file

Linux Unix Sorting Csv

Get the date (a day before current time) in Bash

Bash Unix Date Solaris

How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

C Linux Unix File Posix

How to remove folders with a certain name

What is the reason for performing a double fork when creating a daemon?

Python Unix Daemon

How to go to each directory and execute a command?

Bash Shell Unix Find

Setting PATH environment variable in OSX permanently

Macos Bash Unix Path Environment Variables

How do you run a single query through mysql from the command line?

Sql Mysql Unix Command Line

How to kill a child process after a given timeout in Bash?

Linux Bash Unix

What are the differences between poll and select?

Print a file's last modified date in Bash

Bash Shell File Date Unix

What are the dark corners of Vim your mom never told you about?

Unix Vim Editor Vi

What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

Unix Operating System

top -c command in linux to filter processes listed based on processname

Linux Unix Process Top Command

How do I turn off the output from tar commands on Unix?

Delete all but the most recent X files in bash

Bash Unix Scripting

Is there a Unix utility to prepend timestamps to stdin?

Argument list too long error for rm, cp, mv commands

Linux Unix Command Line-Arguments

What generates the "text file busy" message in Unix?

How to delete duplicate lines in a file without sorting it in Unix

Unix Shell Scripting Sed Awk

git-upload-pack: command not found, when cloning remote Git repo

Git Version Control Unix Ssh

How do SO_REUSEADDR and SO_REUSEPORT differ?

Linux Windows Sockets Unix Portability

Bash tool to get nth line from a file

Bash Shell Unix Awk Sed

Bash array with spaces in elements

Arrays Bash Unix Scripting

How to run Unix shell script from Java code?

Java Unix Shell

cd into directory without having permission

Linux Unix Permissions Directory

How do I use grep to search the current directory for all files having the a string "hello" yet display only .h and .cc files?

Linux Bash Unix Grep

Unix command to prepend text to a file

Unix Command Line Utilities Prepend

How to display line numbers in 'less' (GNU)

How can I reverse the order of lines in a file?

Shell Unix Command Line

Creating temporary files in bash

Linux Bash Unix

Copy all files with a certain extension from all subdirectories

Command-line Unix ASCII-based charting / plotting tool

Unix Charts Graph Matplotlib

How to set environment variable for everyone under my linux system?

Linux Unix Bash

count (non-blank) lines-of-code in bash

Bash Unix Count Lines Nonblank

How to remove EXIF data without recompressing the JPEG?

Unix Imagemagick Jpeg Exif

UNIX export command

Bash Shell Unix

Run php script as daemon process

Php Linux Unix Daemon

How to download a file from server using SSH?

How to determine the current interactive shell that I'm in? (command-line)

Bash Unix Shell Csh Tcsh

What does the line "#!/bin/sh" mean in a UNIX shell script?

Shell Unix Sh Shebang

How to strip leading "./" in unix "find"?

Unix Find Strip

How to only find files in a given directory, and ignore subdirectories using bash

Get exit code of a background process

Linux Shell Unix Process

Command line: piping find results to rm

Unix Command Line Find Rm

How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONPATH?

How can I copy the output of a command directly into my clipboard?

Linux Shell Unix Terminal Clipboard

How do I find the location of the executable in C?

C++C Linux Unix Path

How do you tell if a string contains another string in POSIX sh?

Concatenating Files And Insert New Line In Between Files

Variable interpolation in the shell

Bash Shell Unix

check if directory exists and delete in one command unix

Save modifications in place with awk

Is it safe to parse a /proc/ file?

C++C Linux Unix Procfs

Delete files older than 10 days using shell script in Unix

Bash Shell Unix Find

unix diff side-to-side results?

How do I get the path of a process in Unix / Linux

Linux Unix Process Path Environment

Is mongodb running?

Mongodb Unix Database Nosql

Loop through a comma-separated shell variable

Shell Loops Unix For Loop Cut

Unix's 'ls' sort by name

Convert Unix timestamp to a date string

Bash Shell Unix Unix Timestamp

Search for executable files using find command

Bash Unix Terminal Find Find Util

How to find the files that are created in the last hour in unix

Which terminal command to get just IP address and nothing else?

Shell Unix Ip Address

don't fail jenkins build if execute shell fails

Linux Unix Jenkins

How do I write standard error to a file while using "tee" with a pipe?

Linux Bash Unix Tee

How can I add a help method to a shell script?

Force line-buffering of stdout in a pipeline

Unix Buffer Pipe Stdout Tee

How to cat <<EOF >> a file containing code?

Linux Unix Sh Heredoc

Difference between Real User ID, Effective User ID and Saved User ID

Linux Unix Posix

In the shell, what does " 2>&1 " mean?

Bash Shell Unix Redirect

How do I get cURL to not show the progress bar?

Linux Bash Unix Scripting Curl

How can I programmatically create a new cron job?

Linux Unix Cron

Why doesn't "total" from ls -l add up to total file sizes listed?

Linux Shell Unix Command Prompt

Sorting multiple keys with Unix sort

Linux Unix Sorting

File content into unix variable with newlines

unix - head AND tail of file

Linux Bash Shell Unix Scripting

Do you need to use path.join in node.js?

node.js Windows Unix Path

How to select lines between two marker patterns which may occur multiple times with awk/sed

Shell Unix Sed Awk Pattern Matching

In Python script, how do I set PYTHONPATH?

Python Linux Unix Environment Variables

Only mkdir if it does not exist

In Bash, how do I add a string after each line in a file?

Linux Bash Unix Sed

TCP loopback connection vs Unix Domain Socket performance

Sockets Unix Tcp Loopback Unix Socket

How to print third column to last column?

Linux Shell Unix Multiple Columns

Compare two files line by line and generate the difference in another file

Why does ENOENT mean "No such file or directory"?

Unix - create path of folders and file

Linux Bash Shell Unix Scripting

How do I get the find command to print out the file size with the file name?

Unix Command Line Find Solaris

How do I pipe or redirect the output of curl -v?

Linux Unix Curl

What does "&" at the end of a linux command mean?

Linux Shell Unix

Reload .profile in bash shell script (in unix)?

Bash Shell Unix .Bash Profile

How to read a file into a variable in shell?

How can I split a large text file into smaller files with an equal number of lines?

Unix shell script find out which directory the script file resides?

Shell one liner to prepend to a file

List of Java processes

Linux Bash Unix Command Line

Is it possible to use "/" in a filename?

Linux Unix Directory Filenames Slash

Shell Script — Get all files modified after <date>

Most tricky/useful commands for gdb debugger

C Unix Gdb Debugging Dbx

sed or awk: delete n lines following a pattern

How do I set $PATH such that `ssh user@host command` works?

Unix Shell Path Ssh

How to pretty print XML from the command line?

Xml Unix Command Line

Find and replace in file and overwrite file doesn't work, it empties the file

Shell Unix Sed Io Redirection

Executing JavaScript without a browser?

Javascript Unix Command Line Scripting V8

Checking from shell script if a directory contains files

Bash Unix Shell

What's the difference between an exclusive lock and a shared lock?

What is the difference between SIGSTOP and SIGTSTP?

Unix Signals Signal Handling

Find lines from a file which are not present in another file

Unix Text Files

Exclude a sub-directory using find

How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?

Linux Unix Posix

What's the magic of "-" (a dash) in command-line parameters?

Linux Bash Shell Unix Command Line

Get last field using awk substr

Unix Awk Substr

Can you change what a symlink points to after it is created?

What does the number in parentheses shown after Unix command names in manpages mean?

Linux Unix Command Line Manpage

How to use multiple arguments for awk with a shebang (i.e. #!)?

Shell Unix Awk Gawk Shebang

How do you set your pythonpath in an already-created virtualenv?

Python Linux Unix Virtualenv

How do you use an identity file with rsync?

Unix Rsa Rsync Dsa

Turn a simple socket into an SSL socket

C Linux Sockets Unix Ssl

Why should eval be avoided in Bash, and what should I use instead?

Linux Bash Unix Eval

how to find host name from IP with out login to the host

Unix Command Line Hostname

mkdir's "-p" option

Unix Command Line Command Line-Arguments Directory Structure

What do double-asterisk (**) wildcards mean?

Bash Unix Wildcard Glob Wildcard Expansion

Multiplication on command line terminal

Bash Unix Command Line

Get specific line from text file using just shell script

Linux Shell Unix Sh

What does ^M character mean in Vim?

Spinlock versus Semaphore

C++C Linux Unix Operating System

Unix command-line JSON parser?

Json Parsing Unix Configuration

How does grep run so fast?

An efficient way to transpose a file in Bash

Bash Parsing Unix Transpose

How to get a list of file names in different lines

OS X: equivalent of Linux's wget

Macos Shell Unix Http Get

How to do a logical OR operation for integer comparison in shell scripting?

Bash Unix If Statement Sh

Why always ./configure; make; make install; as 3 separate steps?

Unix Makefile Configure Make Install

Is there a way to ignore header lines in a UNIX sort?

Unix Sorting Command Line

find -exec cmd {} + vs | xargs

Linux Unix Command Line Find

How does this bash fork bomb work?

pyvenv-3.4 returned non-zero exit status 1

Python Unix Python 3.x Virtualenv

How to colorize diff on the command line

Unix Command Line Colors Diff

What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort

Replace a string in shell script using a variable

Test if a variable is set in bash when using "set -o nounset"

Bash Shell Unix

sed with literal string--not input file

How to run a shell script on a Unix console or Mac terminal?

Linux Bash Macos Shell Unix

What does 'stale file handle' in Linux mean?

Convert decimal to hexadecimal in UNIX shell script

Is file append atomic in UNIX?

Unix File Io Posix Atomic

Grep for literal strings

grep for special characters in Unix

Unix Search Grep Special Characters

How to make a python, command-line program autocomplete arbitrary things NOT interpreter

Python Linux Unix Command Line Autocomplete

Compare two folders which have many files inside contents

Unix Shell Diff

Color text in terminal applications in UNIX

C Unix Terminal

Can I call a function of a shell script from another shell script?

Track the time a command takes in UNIX/LINUX?

Linux Unix Command Line Terminal

Run java jar file on a server as background process

Shell Unix Executable Jar

How/When does Execute Shell mark a build as failure in Jenkins?

Shell Unix Jenkins Build Hudson

How to split a file into equal parts, without breaking individual lines?

Bash Shell Unix Split

How to make an "alias" for a long path?

Linux Bash Unix Scripting

How to send a simple string between two programs using pipes?

Sort CSV file by multiple columns using the "sort" command

Csv Sorting Unix

shell-script headers (#!/bin/sh vs #!/bin/csh)

Resource u'tokenizers/punkt/english.pickle' not found

Python Unix Nltk

Is there a way to change the environment variables of another process in Unix?

Linux Shell Unix Gdb Environment Variables

PostgreSQL: Resetting password of PostgreSQL on Ubuntu

Postgresql Unix

How to scroll up and down in sliced "screen" terminal

Linux Ubuntu Unix Terminal Gnu Screen

How to make grep only match if the entire line matches?

Shell Unix Grep

Finding empty directories

Bash Unix Directory

Unix: How to delete files listed in a file

How to Use CCache with CMake?

C++Unix Cmake Ccache

How to grep for the whole word

Merging png images into one pdf file

Unix Pdf Merge Png

What are file descriptors, explained in simple terms?

Unix Operating System File Descriptor

In Unix, how do you remove everything in the current directory and below it?

Bash Unix Directory Subdirectory Delete Directory

SVN encrypted password store

Svn Unix Encryption Passwords

Single line sftp from terminal

Unix Terminal Sftp Scp

Please explain the exec() function and its family

Obtaining a Unix Timestamp in Go Language (current time in seconds since epoch)

Unix Timestamp Go

Aborting a shell script if any command returns a non-zero value

Linux Bash Unix Shell

Restarting cron after changing crontab file?

Linux Unix Cron Cron Task

What is the difference between "#!/usr/bin/env bash" and "#!/usr/bin/bash"?

Linux Bash Shell Unix Shebang

Display two files side by side

Linux Shell Unix Command Line Gnu Coreutils

Insert the carriage return character in vim

Unix Vim Special Characters

Bash command line and input limit

Bash Shell Unix Command Line-Arguments

lsof survival guide

Unix Sysadmin Lsof

Should a directory path variable end with a trailing slash?

Unix File Variables Path

Linux/Unix command to determine if process is running?

Linux Bash Shell Unix Process

Why number 9 in kill -9 command in unix?

Unix Command History Kill

How to truncate long matching lines returned by grep or ack

Identifying and removing null characters in UNIX

Unix Shell Null Special Characters

What's a concise way to check that environment variables are set in a Unix shell script?

Bash Unix Shell

What are .a and .so files?

C Unix Compilation Shared Libraries .A

See what process is using a file in Mac OS X

Macos Unix Terminal Audit Lsof

Forcing bash to expand variables in a string loaded from a file

Linux Bash Shell Unix

How can I set Bash aliases for docker containers in Dockerfile?

Bash Unix Docker Alias Dockerfile

Is gettimeofday() guaranteed to be of microsecond resolution?

Linux Winapi Visual C++Unix Timer

Linux: copy and create destination dir if it does not exist

Linux Bash Shell Unix Cp

How can I assign a name for a screen?

Linux Unix Shell Gnu Screen

How can I redirect the output of the "time" command?

Shell Unix Time Io Redirection

Rename all files in a folder with a prefix in a single command

Linux Unix Rename

Fast Concatenation of Multiple GZip Files

Linux Unix Gzip Compression

Determine the process pid listening on a certain port

Unix Port Freebsd Pid

Make a program run slowly

C++C Linux Unix Ubuntu

How to set breakpoints on future shared libraries with a command flag

C++C Linux Unix Gdb

Bash script to receive and repass quoted parameters

Is there any simple way to benchmark Python script?

Python Unix Shell Benchmarking

How do I tar a directory without retaining the directory structure?

Linux Unix Gnu Tar

Equivalent of *Nix 'which' command in PowerShell?

Unix Powershell Command

'^M' character at end of lines

Sql Unix Newline Line Endings Os Dependent

What is the purpose of fork()?

C Unix Posix Fork

how to use sed, awk, or gawk to print only what is matched?

Regex Unix Sed Awk Gawk

How to make a shell script global?

Macos Shell Unix

Find directory name with wildcard or similar to "like"

Can't su to user jenkins after installing Jenkins

Linux Unix Jenkins

Allow user to set up an SSH tunnel, but nothing else

How to execute the output of a command within the current shell?

Bash Shell Unix Pipe

How do you find the original user through multiple sudo and su commands?

Linux Bash Unix Sudo Su

How to search filenames by regex with "find"

What do 'real', 'user' and 'sys' mean in the output of time(1)?

Unix Time Benchmarking

How do I recursively grep all directories and subdirectories?

Linux Unix Grep

Why is 1/1/1970 the "epoch time"?

Unix Time Epoch

Use find command but exclude files in two directories

Linux Shell Unix Find

How to split CSV files as per number of rows specified?

Linux Unix Csv Split

ssh-copy-id no identities found error

Unix Ssh Ssh Keys

grep a tab in UNIX

How to properly nest Bash backticks

Bash Shell Unix Quoting

Create text file and fill it using bash

How to print the number of characters in each line of a text file

Shell Unix Sed Awk

Postgres DB not starting on Mac OSX: ERROR says: connections on Unix domain socket

Macos Postgresql Unix Pid Pgadmin

How can I send an email through the UNIX mailx command?

Unix Email Mailx

rsync not synchronizing .htaccess file

Linux Shell Unix Wildcard Rsync

Split one file into multiple files based on delimiter

Linux Unix Awk Split

Use and meaning of session and process group in Unix?

Turning multiple lines into one comma separated line

Linux Perl Unix Sed Awk

Change the "From:" address in Unix "mail"

How do I daemonize an arbitrary script in unix?

Perl Unix Scripting Sysadmin Daemon

What can cause a “Resource temporarily unavailable” on sock send() command

C Linux Sockets Unix

How can I check the first character in a string in Bash or Unix shell?

String Bash Unix Character Exitstatus

UNIX nonblocking I/O: O_NONBLOCK vs. FIONBIO

C Network Programming Unix Sockets

How to sort the files according to the time stamp in unix?

Unix Unix Timestamp

How do I run Selenium in Xvfb?

Python Linux User Interface Unix Selenium

Unix - copy contents of one directory to another

File Unix Copy Directory

cut or awk command to print first field of first row

Linux Bash Unix Awk

Easiest way to strip newline character from input string in pasteboard

Macos Unix Shell

Docker CE on RHEL - Requires: container-selinux >= 2.9

Docker Unix Rhel

How to count lines of code including sub-directories

Linux Bash Unix Wc

A cron job that will never execute

To show only file name without the entire directory path

Shell Unix Directory Ls

What does the 'export' command do?

Shell Unix Command Environment Variables

Delete empty lines using sed

printf anomaly after "fork()"

C Linux Unix Printf Fork

How do I extract files without folder structure using tar

Bash regex =~ operator

Bash Shell Unix

Arrays in unix shell?

Arrays Bash Shell Unix

How to interleave lines from two text files

Get Unix timestamp with C++

C++Unix Timestamp Uint

Unix standard directory to put custom executables or scripts?

Linux Shell Unix Command Line Directory Structure

Pipe output of cat to cURL to download a list of files

How can I set the last modified time of a file from python?

Python Unix Last Modified

How to find file accessed/created just few minutes ago

Linux Bash Shell Unix Find

How can I remove the last character of a file in unix?

Linux Bash Unix Sed

Looping through the content of a file in Bash

Linux Bash Loops Unix Io

Why should text files end with a newline?

File Unix Text Files Newline

How can I grep for a string that begins with a dash/hyphen?

Unix Grep Escaping

What is the simplest way to SSH using Python?

Python Linux Unix Ssh

How to check if $? is not equal to zero in unix shell scripting?

Difference between using "chmod a+x" and "chmod 755"

Linux Unix Chmod

How can I get the IP address from a NIC (network interface controller) in Python?

Python Unix Networking Nic

ASCII Library for Creating "Pretty" Directory Trees?

Php Unix Tree Ascii

Going to a specific line number using Less in Unix

Shell Unix Search Less Unix

How can I execute a command stored in a variable?

Shell Unix Parameter Expansion

What is special about /dev/tty?

Using Rsync include and exclude options to include directory and file by pattern

Linux Unix Rsync Darwin

How to run MySQL command on bash?

Mysql Bash Unix Terminal Special Characters

How can I send the stdout of one process to multiple processes using (preferably unnamed) pipes in Unix (or Windows)?

Windows Bash Unix Shell Pipe

How do you recursively unzip archives in a directory and its subdirectories from the Unix command-line?

Unix Recursion Spaces Unzip

Bash Scripting - How to set the group that new files will be created with?

Linux Bash Unix Shell Permissions

Concatenate multiple files but include filename as section headers

Unix Header Terminal Concatenation Cat

Unlimited Bash History

Delete the first five characters on any line of a text file in Linux with sed

Is there a LINQ library for C++?

What are good Linux/Unix books for an advancing user?

Linux Unix Command Line

How to get a unix script to run every 15 seconds?

Unix Cron Command Sleep

Generate a random filename in unix shell

Unix Shell Random Tcsh

Curl to grab remote filename after following location

Unix Command Line Curl

grep --ignore-case --only

Regex Bash Unix Grep Gnu

Concise and portable "join" on the Unix command-line

unix - count of columns in file

Linux Bash Shell Unix Scripting

Remove part of path on Unix

Shell Unix Scripting Sed

/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version CXXABI_1.3.8' not found

How can I tell which Unix shell I am using?

Linux Shell Unix

Directory last modified date

How do I list all the files in a directory and subdirectories in reverse chronological order?

How can I run a cron job every 5 minutes starting from a time other than 0 minutes?

"which in ruby": Checking if program exists in $PATH from ruby

Limit the output of the TOP command to a specific process name

Macos Unix Command Line Top Command

Why can't Unix programs have signals with meaningful program defined names (rather than USR1, etc)?

Crontab run every 15 minutes except at 3AM?

Linux Unix Cron

How to open a new file in vim in a new window

Why do shell script comparisons often use x$VAR = xyes?

Unix Shell Autotools

In Linux, how to tell how much memory processes are using?

Linux Unix Memory Leaks Memory Management

How can I format my grep output to show line numbers at the end of the line, and also the hit count?

Linux Bash Unix Grep

Forking vs Threading

Linux Multithreading Unix Programming Languages Fork

Comparing Unix/Linux IPC

Where are core dumps written on Mac?

Macos Unix Signals Coredump

What does EAGAIN mean?

C Sockets Unix Posix

How do I grep for all non-ASCII characters?

Regex Unix Unicode Grep

What is the cleanest way to ssh and run multiple commands in Bash?

Fastest possible grep

Bash script error: "function: not found". Why would this appear?

Bash Shell Unix Ubuntu Terminal

Windows command to convert Unix line endings?

Windows Unix Batch File Cmd Eol

What is double dot(..) and single dot(.) in Linux?

Linux File Unix Directory

Setting environment variables in Linux using Bash

Linux Bash Unix Shell

sed edit file in place

Unix Sed Solaris

Extract file basename without path and extension in bash

Linux Bash Unix Filenames

Can I export a variable to the environment from a Bash script without sourcing it?

Bash Shell Unix Environment Variables

Must my pidfile be located in /var/run?

Linux Ubuntu Unix Pid

Finding all files with certain extension in Unix?

Macos Unix Search Terminal

How to extract a single file from tar to a different directory?

How to attach a process in gdb

Force "git status" to output color on the terminal (inside a script)

Git Shell Unix Io Terminal

Windows Equivalent of 'nice'

Windows Unix Process Management

How do you introduce unit testing into a large, legacy (C/C++) codebase?

C++C Unit Testing Unix Legacy

Location of ini/config files in linux/unix?

Linux Unix Configuration

Is there a way to edit a symlink without deleting it first?

How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script

Linux Windows Bash Unix Newline

centos: Another MySQL daemon already running with the same unix socket

Mysql Sockets Unix Centos6

echo >&2 "some text" what does it mean in shell scripting

How to instruct cron to execute a job every second week?

Linux Unix Cron Scheduling

How can you untar more than one file at a time?

How do I find all the files that were created today in Unix/Linux?

Get Current date in epoch from Unix shell script

Unix Shell Epoch

Difference between sh and Bash

Bash Shell Unix Sh

Recursive mkdir() system call on Unix

C Posix Unix Mkdir

Replace the first line in a text file by a string

Linux Shell Unix

How to get the primary IP address of the local machine on Linux and OS X?

Bash Unix Ip Ifconfig

How do I escape spaces in path for scp copy in Linux?

Linux Unix Ubuntu Whitespace Scp

Using the passwd command from within a shell script

Linux Bash Unix Shell

changing chmod for files but not directories

Unix Grep Chmod

How to delete only directories and leave files untouched

Unix Directory Rm

How to change the sender's name or e-mail address in mutt?

Why does this program print "forked!" 4 times?

C Linux Unix Fork Systems Programming

Where should I place my global 'gitattributes' file?

Git Unix Path Gitattributes

lsof print numeric ports

Unix Tcp Ports Lsof

Show special characters in Unix while using 'less' Command

Linux Unix Command

How do I get bc(1) to print the leading zero?

Reading filenames into an array

Bash Unix Cygwin

How to comment out particular lines in a shell script

Is PowerShell ready to replace my Cygwin shell on Windows?

Unix Shell Powershell

What's the meaning of a ! before a command in the shell?

Linux Bash Shell Unix Sh

How to remove files starting with double hyphen?

Bash Unix Filenames

linux find regex

Regex Linux Bash Unix Find

How do I use the nohup command without getting nohup.out?

Zombie process vs Orphan process

C Unix Fork Zombie Process

Delete all broken symbolic links with a line?

Bash Shell Unix Symlink

Best way to find os name and version in Unix/Linux platform

Linux Unix Operating System Version

What characters should be restricted from a Unix file name?

Validation Unix File

How do I distinguish between 'binary' and 'text' files?

Unix Language Agnostic Ascii Binaryfiles File Format

How to remove leading whitespace from each line in a file

Unix Sed Awk Grep

Did I understand /dev/urandom?

Linux Unix Random Cryptography

How to check permissions of a specific directory?

How do you run a script on login in *nix?

Linux Bash Macos Unix Shell

Is there an equivalent to WinAPI's MAX_PATH under linux/unix?

C++C Linux Unix Posix

What does `set -x` do?

Linux Bash Unix Scripting

How to represent multiple conditions in a shell if statement?

Bash Shell Unix

executing shell command in background from script

Bash Unix Shell

bash: silently kill background function process

Linux Bash Shell Unix Scripting

Using grep and sed to find and replace a string

Linux Shell Unix Sed Grep

Using Bash to display a progress indicator

Bash Shell Unix Progress

How can I list the files in a zip archive without decompressing it?

Linux Bash Shell Unix Zip

SCP Permission denied (publickey). on EC2 only when using -r flag on directories

Unix Amazon Ec2 File Permissions Scp

Unix: what modifier key does "M-" refer to (e.g. M-C)

Display current path in terminal only

Unix Terminal Path

How do you read a segfault kernel log message

C++C Unix Segmentation Fault Syslog

What is the meaning of *nix?

Ruby Linux Unix Operating System

Windows equivalent for Unix find command to search multiple file types

Windows Unix Command Line Find Ls

Filter by process name and log CPU usage

Difference between UNIX domain STREAM and DATAGRAM sockets?

Linux Sockets Unix Tcp Udp

How can I find encoding of a file via a script on Linux?

File Shell Unix Encoding

Use space as a delimiter with cut command

How can I recall the argument of the previous bash command?

Linux Bash Unix Command

practical examples use dup or dup2

C File Unix System Calls Dup

Generate sha256 with OpenSSL and C++

C++Unix Openssl Sha256

How to grep for the dollar symbol ($)?

Linux Unix Grep

How do I add a line break for read command?

Bash Shell Unix

Unix sort of version numbers

Why are ports below 1024 privileged?

What is the difference between using `sh` and `source`?

Linux Bash Shell Unix

How to use variables in a command in sed?

Choosing a static code analysis tool

How to suppress Terminated message after killing in bash?

Bash Unix Shell

How to convert \uXXXX unicode to UTF-8 using console tools in *nix

Linux Json Unix Unicode Encoding

How to turn off word wrap in iTerm2?

Unix Terminal Iterm Iterm2

How do you extract IP addresses from files using a regex in a linux shell?

Regex Linux Bash Unix Command Line

Using `date` command to get previous, current and next month

Linux Bash Unix Date

How do you print received cookie info to stdout with curl?

Bash Unix Cookies Curl

Recursively cat all the files into single file

Linux Bash Unix Grep Cat

How do you kill all Linux processes that are older than a certain age?

Linux Bash Unix Process

Bash or KornShell (ksh)?

Bash Shell Unix Scripting Ksh

Move top 1000 lines from text file to a new file using Unix shell commands

Unix Shell Copy

What's the difference between nohup and a daemon?

how do I zip a whole folder tree in unix, but only certain files?

How to capture Control+D signal?

C Linux Unix Signals

How closely are Mac OS X and BSD related?

Macos Unix Operating System Linux Kernel Kernel

Unix find: multiple file types

How to read a .man file not on manpath?

Deleting files after adding to tar archive

Bash Unix Compression Tar

How do I get the unix timestamp in C as an int?

C Unix Timestamp Epoch

How to match once per file in grep?

Regex Perl Shell Unix Grep

How to remove a character at the end of each line in UNIX

Boolean operators ( &&, -a, ||, -o ) in Bash

Bash Shell Unix Boolean Operators

How to edit binary file on Unix systems

Linux Unix Binaryfiles Hex Editors

Eclipse Editor: How to change file format from Dos to Unix

Java Eclipse Unix Editor Dos2unix

Preemptive threads Vs Non Preemptive threads

Linux Multithreading Unix Pthreads

How do I know if I'm running a nested shell?

Linux Bash Shell Unix

Diff files present in two different directories

Unix Shell Diff

change PATH permanently on Ubuntu

Linux Unix Ubuntu Path

Waiting for background processes to finish before exiting script

Bash Shell Unix Tcl Grep

How to get pid given the process name

Unix Ksh Pid Ps

How to denote that a command line argument is optional when printing usage

Unix Command Line Arguments

How can I write a ESLint rule for "linebreak-style", changing depending on Windows or Unix?

Javascript Windows Unix Eslint Line Endings

What should we do to prepare for 2038?

Unix Time Maintainability Year2038

Unix ls command: show full path when using options

Shell Unix Command Line Ls

Bash: let statement vs assignment

Linux Bash Unix

Pipes in a Git alias?

Trim leading and trailing spaces from a string in awk

Is there a way to make mv create the directory to be moved to if it doesn't exist?

Linux Macos Unix Mkdir Mv

Shell script - remove first and last quote (") from a variable

String Bash Shell Unix Sed

127 Return code from $?

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" How does that work?

Linux Bash Shell Unix Scripting

Remove line of text from multiple files in Linux

Linux Unix Command Line

Why does open() create my file with the wrong permissions?

How does cron internally schedule jobs?

Linux Unix Cron Crontab Scheduler

Write to file, but overwrite it if it exists

How do I set up cron to run a file just once at a specific time?

Linux Unix Cron

How to avoid echo closing FIFO named pipes? - Funny behavior of Unix FIFOs

Bash Unix Pipe Echo

How to find files modified in last x minutes (find -mmin does not work as expected)

Linux Bash Unix Gnu Findutils

What is the fastest way to get the value of π?

Performance Algorithm Language Agnostic Unix Pi

Can you prevent a command from going into the bash shell command history?

Linux Bash Unix Shell

How can I copy a file on Unix using C?

How do I determine if a web page exists with shell scripting?

Converting relative path into absolute path?

Perl Unix Shell Path Absolute Path

Creating files with some content with shell script

Shell Unix Scripting

How to fix npm throwing error without sudo

node.js Unix Permissions Npm Sudo

.ssh directory not being created

Unix Ssh Cygwin

unix sort descending order

Remove all text before colon

R Unix Replace Sed Awk

How to get first n characters of each line in unix data file

Linux Unix Awk Cut

How to check if the file is a binary file and read all the files which are not?

Shell Unix Binaryfiles

How to get PID of process by specifying process name and store it in a variable to use further?

Unix Process Pid

Single command to create a file and set its permission

Shell Unix File Permissions Ksh

How to read a .properties file which contains keys that have a period character using Shell script

Linux Bash Shell Unix

unzip password protected zip in unix

Shell Unix Unzip

How to attach a file using mail command on Linux?

Linux Unix Shell Email

Converting Date and Time To Unix Timestamp

Javascript Regex Unix Timestamp

How do you do a case insensitive search using a pattern modifier using less?

Unix Search Case Insensitive Less Unix

Why is sin_addr inside the structure in_addr?

Replace comma with newline in sed on MacOS?

Commandline hexdump with ASCII output?

Apt-get is broken after install Google Cloud SDK on Ubuntu 18.04 LTS

Unix Ubuntu 18.04 Apt Get Unixodbc Google Cloud-Sdk

Get list of static libraries used in an executable

C++C Unix Static Linker

Why do you need ./ (dot-slash) before executable or script name to run it in bash?

Bash Shell Unix Command Line

Subtract 1 hour from date in UNIX shell script

Shell Datetime Unix

Unix socket, SOCK_SEQPACKET vs SOCK_DGRAM

What is the *nix command to view a user's default login shell

Linux Shell Unix

What does rf in rm -rf stand for?

Reasoning behind C sockets sockaddr and sockaddr_storage

Getting head to display all but the last line of a file: command substitution and standard I/O redirection

How to make the 'cut' command treat same sequental delimiters as one?

Bash Unix Delimiter Cut

What does "opt" mean (as in the "opt" directory)? Is it an abbreviation?

Linux Unix Directory Terminology

Where can I set environment variables that crontab will use?

Linux Unix Environment Variables Crontab

Getting an error cp: cannot stat when trying to copy files from one folder to another

Bash Unix Command Line Cp Mv

Where are all my inodes being used?

Linux Unix Posix Inode

Reference for proper handling of PID file on Unix

Locking Daemon Unix

How do I untar a subdirectory into the current directory?

Unix Command Line Tar

How does the #! shebang work?

Shell Unix Scripting Shebang

Checking if a directory exists in Unix (system call)

C++C Unix Directory Exists

How to Free Inode Usage?

Linux Unix Memory Management Inode

Unix grep regex containing 'x' but not containing 'y'

Regex Unix Grep Regex Negation

What occurs when a file is `source`-d in Unix/Linux context?

Unix pipe into ls

Linux Unix Pipe Ls

Unset an environment variable for a single command

Bash Unix Environment Variables

Assigning the output of a command to a variable

Display filename before matching line

Slashes and the rsync command

Linux Unix Directory Rsync

Unable to diff files in two separate branches in Git

Git Unix Merge Diff

Opening files in the same folder as the current file, in vim

Dropping root privileges

sometimes my file just freezes in my vi |vim, what happened?

What is the maximum number of characters for a host-name in Unix?

C Unix Max Hostname

How do I append the UNIX command date to an echo statement

Expression after last specific character

Linux Bash Shell Unix Scripting

How to write a shell script that runs some commands as superuser and some commands not as superuser, without having to babysit it?

How to pipe Node.js scripts together using the Unix | pipe (on the command line)?

Javascript node.js Unix Pipe Command Line-Interface

What does sed -i option do?

Unix Sed Command Line Option