When you run the Cygwin installer again to install new packages, you might notice that searching for &quot;scp&quot; produces no results.

It&#39;s actually part of the &quot;openssh&quot; package.

Whenever you want to add new packages to Cygwin you run the setup.exe file again as if installing from scratch. The Cygwin setup can be downloaded [here](http://cygwin.com/install.html).
then search for the openssh package and install it. (remember you can do this even after having it installed, it&#39;ll just add what you need)

Nowadays, you do not need Cygwin to get Windows OpenSSH build.

You can use [Win32-OpenSSH](https://github.com/PowerShell/Win32-OpenSSH), what is Microsoft official build of OpenSSH for Windows. On Windows 10 version 1803 or newer, you already have OpenSSH built-in. On older versions of Windows 10, it can be installed as an optional Windows feature. On older versions of Windows, you can just extract the `scp.exe`, `ssh.exe` and `libcrypto.dll` from a .zip ([latest release](https://github.com/PowerShell/Win32-OpenSSH/releases)), no installation is need.

---

Another way is to install [Windows subsystem for Linux](https://docs.microsoft.com/en-us/windows/wsl/about). The OpenSSH `sftp` and `ssh` are included.


My understanding is that the default branch of a cloned repository is to be whatever HEAD points to in the repo being cloned.

I now have a case where this is not true. My understanding is obviously flawed, so what does determine the default checkout branch when cloning a (bare) repo?

The last commit on that repo was a merge between the branch referenced in the bare repo&#39;s HEAD into the branch I&#39;m getting as the checkout branch in the clone.

Running `git remote show origin` returns:

    Fetch URL: ...
    Push  URL: ...
    HEAD branch (remote HEAD is ambiguous, may be one of the following):
      &lt;bad-branch&gt;
      live
    Remote branches:
      ...

Bare repo uses Git version 1.8.2.1, client uses 1.7.12.4, transport is SSH.

Maybe the answer is actually [this one here](https://stackoverflow.com/questions/13061364/why-git-remote-show-name-display-remote-head-is-ambiguous-may-be-one-of-the). [This answer](https://stackoverflow.com/questions/2574517/error-with-git-remote-head-is-ambiguous-may-be-one-of-the-following) confirms it. If there is a choice of symbolic refs all pointing to the same revision as HEAD, the client will _guess_ which branch to use. 

What determines default branch after &quot;git clone&quot;?

After I updated Android Studio to version 0.2.7, I got the following error:

     org.gradle.tooling.GradleConnectionException: Could not execute build
     using Gradle distribution
    &#39;http://services.gradle.org/distributions/gradle-1.6-bin.zip&#39;.: Could
     not execute build using Gradle distribution
    &#39;http://services.gradle.org/distributions/gradle-1.6-bin.zip&#39;.

This is my build.gradle:

    buildscript {
        repositories {
            mavenCentral()
        }
        dependencies {
            classpath &#39;com.android.tools.build:gradle:0.5.+&#39;
        }
    }
    apply plugin: &#39;android&#39;

    dependencies {
        compile files(&#39;libs/android-support-v4.jar&#39;)
    }

    android {
        compileSdkVersion 17
        buildToolsVersion &quot;17.0.0&quot;

    defaultConfig {
        minSdkVersion 10
        targetSdkVersion 17
    }
    }

Does anyone know this error?

Gradle error: could not execute build using gradle distribution

I have downloaded Cygwin on windows 8 and use it for python scripts.
How do I get SCP and ssh on Cygwin without having to use WinSCP and Putty?

How do I download SCP and ssh on Cygwin?

<p>I have downloaded Cygwin on windows 8 and use it for python scripts.
How do I get SCP and ssh on Cygwin without having to use WinSCP and Putty?</p>


I’m following in [Generating SSH Keys][1], it says

&gt; ```sudo apt-get install xclip```
&gt;
 Downloads and installs xclip. If you don&#39;t have `apt-get`, you might need to use another installer (like `yum`)  
&gt;
&gt; ```xclip -sel clip &lt; ~/.ssh/id_rsa.pub```
&gt;
  Copies the contents of the id_rsa.pub file to your clipboard

But after I run`xclip -sel clip &lt; ~/.ssh/id_rsa.pub` I get `Error: Can&#39;t open display: (null)`
What is the problem? I googled around but found nothing about it

  [1]: https://help.github.com/articles/generating-ssh-keys#platform-linux

Error: Can&#39;t open display: (null) when using Xclip to copy ssh public key

I know how to forward SOCKS proxy on the command like below

    ssh -D port_number user@host

This works well but I want to be able to put that forwarding into my SSH `config` file. But I am not able to locate any useful information or tutorial about.

I have bunch of normal SSH profiles in the config so I prefer to have the forwardings attached to the SSH profiles.



How to add socks proxy to ssh config file?

My lab runs RStudio on a server.  A couple weeks ago, from my cousin&#39;s house, I successfully ssh&#39;d into the server and pulled up the server-side RStudio through my local Firefox browser.  Now when I try to access the server RStudio from home (via my own router), it doesn&#39;t work.  I need help troubleshooting, and I&#39;m guessing it&#39;s some problem on the router.  I&#39;m running Mac OSX 10.6.8.  No idea what the university server&#39;s running, but I don&#39;t think it&#39;s a server-side problem.

Here&#39;s how it worked the first time I did it, at my cousin&#39;s house: first, I VPN into the university network; then I call SSH with port forwarding; then I open a Firefox browser, connect to my localhost port, and it opens up RStudio on the server side which I can access through my local browser window.

Here&#39;s the problem I&#39;m having right now when I try to log-in from my home network:

I can make the VPN connection successfully.  I can also set up SSH successfully with this command:
`ssh -v -L 8783:localhost:8783 myacct@server.com`

Here are the last several lines of the verbose output from the successful ssh command:

    debug1: Authentication succeeded (password).
    debug1: Local connections to LOCALHOST:8783 forwarded to remote address localhost:8783
    debug1: Local forwarding listening on 127.0.0.1 port 8783.
    debug1: channel 0: new [port listener]
    debug1: Local forwarding listening on ::1 port 8783.
    debug1: channel 1: new [port listener]
    debug1: channel 2: new [client-session]
    debug1: Entering interactive session.
    Last login: Mon Sep  2 04:02:40 2013 from vpnipaddress


So I think I&#39;m still succeeding at the VPN and SSH stage (though I don&#39;t know why it says my last login was Sep 2 when I&#39;ve logged in a few times since then).

Next, I open Firefox, and I type localhost:8783, and instead of getting an RStudio server app through my browser window, I get the following errors:

In the Firefox browser window, it says: Server not found, Firefox can&#39;t find the server at www.localhost.com, Check the address for typing errors etc.
        
In the terminal window, it says:

    debug1: Connection to port 8783 forwarding to localhost port 8783 requested.
    debug1: channel 3: new [direct-tcpip]
    channel 3: open failed: connect failed: Connection refused
    debug1: channel 3: free: direct-tcpip: listening port 8783 for localhost port 8783, connect from 127.0.0.1 port 50420, nchannels 4

I&#39;m not sure what I&#39;ve got wrong.  I haven&#39;t changed anything on my laptop since my last successful connection.  I&#39;m on my own router (instead of my cousin&#39;s), so maybe I need to mess with the firewall?  I already allowed ports 22 and 8783 to come through the firewall to my laptop (I&#39;m not even sure I needed to do that though).  Help?

SSH -L connection successful, but localhost port forwarding not working &quot;channel 3: open failed: connect failed: Connection refused&quot;

When I do `pull` from Github, I am getting this warning message.    

        MYPC:/Rails$ git pull origin master
        Warning: Permanently added the RSA host key for IP address &#39;#{Some IP address}&#39; to the list of known hosts.
        From github.com:Example/Demo
         * branch            master     -&gt; FETCH_HEAD
        Already up-to-date.



I just want to know which IP address it is adding to the known hosts.


Warning: Permanently added the RSA host key for IP address

In an Ansible role I generate the user&#39;s SSH key. After that I want to print it to the screen and pause so the user can copy and paste it somewhere else. So far I have something like this:

    - name: Generate SSH keys for vagrant user
      user: name=vagrant generate_ssh_key=yes ssh_key_bits=2048
    - name: Show SSH public key
      command: /bin/cat $home_directory/.ssh/id_rsa.pub
    - name: Wait for user to copy SSH public key
      pause: prompt=&quot;Please add the SSH public key above to your GitHub account&quot;

The &#39;Show SSH public key&#39; task completes but doesn&#39;t show the output.

    TASK: [Show SSH public key] *************************************************** 
    changed: [default]


There may be a better way of going about this. I don&#39;t really like the fact that it will always show a &#39;changed&#39; status. I did find this pull request for ansible - https://github.com/ansible/ansible/pull/2673 - but not sure if I can use it without writing my own module.

Displaying output of a remote command with Ansible

I have googled and found many solutions but none work for me.

I am trying to clone from one machine by connecting to the remote server which is in the LAN network.  
Running this command from another machine cause error.  
But running the SAME clone command using git://192.168.8.5 ... at the server it&#39;s okay and successful. 

Any ideas ?

    user@USER ~
    $ git clone  -v git://192.168.8.5/butterfly025.git
    Cloning into &#39;butterfly025&#39;...
    remote: Counting objects: 4846, done.
    remote: Compressing objects: 100% (3256/3256), done.
    fatal: read error: Invalid argument, 255.05 MiB | 1.35 MiB/s
    fatal: early EOF
    fatal: index-pack failed

I have added this config in `.gitconfig` but no help also.  
Using the git version 1.8.5.2.msysgit.0

    [core]
    	compression = -1

fatal: early EOF fatal: index-pack failed

I have multiple text file with about 100,000 lines and I want to split them into smaller text files of 5000 lines each. 


I used:

    split -l 5000 filename.txt

That creates files:

    xaa
    xab
    aac
    xad
    xbe
    aaf


files with no extensions. I just want to call them something like:

    file01.txt
    file02.txt
    file03.txt
    file04.txt


or if that is not possible, i just want them to have the &quot;.txt&quot; extension. 

Split text file into smaller multiple text file using command line

I have a gradle build setup at the beginning of which I want to execute a shellscript in a subdirectory that prepares my environment. 

    task build &lt;&lt; {
    }
    task preBuild &lt;&lt; {
        println &#39;do prebuild stuff:&#39;
    }
    task myPrebuildTask(type: Exec) {
    	workingDir &quot;$projectDir/mySubDir&quot;
    	commandLine &#39;./myScript.sh&#39;
    }
    
    build.dependsOn preBuild
    preBuild.dependsOn myPrebuildTask

However, when I execute the task either by calling `gradle myPrebuildTask` or by simply building the project, the following error occurs:

    &gt; A problem occurred starting process &#39;command &#39;./myScript.sh&#39;&#39;

Unfortunately, thats all I get. &lt;br/&gt;
I have also tried the following - same error.

    commandLine &#39;sh mySubDir/myScript.sh&#39;

I use Gradle 1.10 (needed by Android) on Windows, inside a Cygwin shell. Any ideas?

Execute shell script in Gradle

How do I update file permissions with `git-bash` on Windows 7?

I&#39;ve tried the following without success:

    $ ls -al scripts/script.sh
    -rw-r--r--    1 myUid   Administ       70 Sep  8 11:24 scripts/script.sh
    
    $ git update-index --chmod=+x scripts/script.sh
    
    $ ls -al scripts/script.sh
    -rw-r--r--    1 myUid   Administ       70 Sep  8 11:24 scripts/script.sh
    
    $ chmod +x scripts/script.sh
    
    $ ls -al scripts/script.sh
    -rw-r--r--    1 myUid   Administ       70 Sep  8 11:24 scripts/script.sh

Updating file permissions with git-bash on Windows 7

Traditionally MSYS bash has been considered inferior to Cygwin bash. 
The former was an ancillary tool inside MinGW intended for running autoconf scripts. 
But now there is  MinGW-w64 and MSYS2. The latter ships with a sweet pacman like package manager and elegant shells like zsh, so I wonder if there is still a gap in the emulation layer. 

While MinGW* applications are Windows native executables, MSYS2 software requires a POSIX-emulation layer, just like Cygwin does. At least to a casual user, it is hard to spot the differences between the two. 

- Which are the functional differences between the two emulation layers (if any)? 
- Which emulation is faster (more efficient)?

 



Differences between MSYS2 and Cygwin

I&#39;m new to linux, I want to copy a file from remote to local system... now I&#39;m using scp command in linux system.. I have some folders or files names are with spaces, when I try to copy that file, it shows the error message: &quot;No such file or directory&quot;

I tried:

    scp ael5105@192.168.0.200:&#39;/home/5105/test/gg/Untitled Folder/a/qy.jpg&#39; /var/www/try/

I saw the some reference online but I don&#39;t understand perfectly, can any one help on this?

how can I escape spaces in file name or directory names during copying...

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

An article about [setting up Ghost blogging](https://www.digitalocean.com/community/articles/how-to-host-ghost-with-nginx-on-digitalocean) says to use `scp` to copy from my local machine to a remote server:

    scp -r ghost-0.3 root@*your-server-ip*:~/

However, [Railscast 339: Chef Solo Basics](http://railscasts.com/episodes/339-chef-solo-basics?view=asciicast) uses `scp` to copy in the opposite direction (from the remote server to the local machine):

    scp -r root@178.xxx.xxx.xxx:/var/chef .

In the same Railscast, when the author wants to copy files to the remote server (same direction as the first example), he uses `rsync`:

    rsync -r . root@178.xxx.xxx.xxx:/var/chef

Why use the `rsync` command if `scp` will copy in both directions? How does `scp` differ from `rsync`?

How does `scp` differ from `rsync`?

`scp -r /Applications/XAMPP/htdocs/keypairfile.pem uploads ec2-user@publicdns:/var/www/html`

where uploads is a directory returns  Permission denied (publickey). 

However

`scp -i /Applications/XAMPP/htdocs/keypairfile.pem footer.php ec2-user@publicdns:/var/www/html`

works **(notice the flag change).**

uploads is an empty folder

These are the file permissions for the uploads directory 

`drwxrwxrwx   3 geoffreysangston  admin     102 Nov 15 01:40 uploads`

These are the file permissions for /var/www/html

`drwxr-x--- 2 ec2-user ec2-user 4096 Jan  5 20:45 html`

I&#39;ve tried changing html to 777 and that doesn&#39;t work either.



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

I&#39;m trying to test some C code that I&#39;m writing. The only issue is that the code needs to be executed on a remote machine. 
My laptop is pretty old, and there is no driver for my wireless card available for Ubuntu, so booting into Linux to circumvent this problem isn&#39;t an option. 
Here&#39;s my question: 

I&#39;m using putty to SSH into the remote machine, and I&#39;m writing my code on Notepad++.
The location of my file is:
     `C:\Users\Admin\Desktop\WMU\5260\A2.c`

My problem is that when I use the command `scp C:\Users\Admin\Desktop\WMU\5260\A2.c ~`
I get the error `could not resolve hostname C:. Name or service not known&quot;.`

I&#39;ve also tried `scp Users\Admin\Desktop\WMU\5260\A2.c ~` which gives me the error `Cannot stat &#39;Users\Admin\Desktop\WMU\5260\A2.c&#39;: no such file or directory`

What am I doing incorrectly?



Using putty to scp from windows to Linux

When I try downloading a file from my server onto my computer, it actually downloads the file onto the server.

(Note I am already SSH&#39;d into my server before typing this command. I&#39;ve watched tutorials on YouTube and people are using their terminal without SSHing into any particular server, however I don&#39;t think I can do this with PuTTY on Windows?)

    scp -r -P2222 kwazy@mywebsite.com:/home2/kwazy/www/utrecht-connected.nl ~/Desktop/

The problem is that I am specifying the location to download the file as only `~/Desktop/`

This creates a folder called `Desktop` in my server, instead of copying the files onto my local desktop.

I&#39;d greatly appreciate any assistance.

---

Update:

I am able to use this command on Linux. 

I have successfully download the folder onto my desktop:

![](https://i.imgur.com/71ROuVN.png)

I still need insight onto how I can do this on a Windows machine.

Content Type	Original Author	Original Content on Stackoverflow
Question	Asher	View Question on Stackoverflow
Solution 1 - Ssh	Desty	View Answer on Stackoverflow
Solution 2 - Ssh	Zach M	View Answer on Stackoverflow
Solution 3 - Ssh	Martin Prikryl	View Answer on Stackoverflow

How do I download SCP and ssh on Cygwin?

Ssh Problem Overview

Ssh Solutions

Solution 1 - Ssh

Solution 2 - Ssh

Solution 3 - Ssh

Gradle error: could not execute build using gradle distribution

What determines default branch after "git clone"?

Attributions