It sounds like you&#39;d like for &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;U&lt;/kbd&gt; to be bound to `backward-kill-line` rather than `kill-whole-line`, so add this to your `.zshrc`:

    bindkey \^U backward-kill-line

The `bindkey` builtin and the available editing commands (“widgets”) are documented in the `zshzle` man page.


I am very new to the C++ STL, so this may be trivial. I have a `ostream` variable with some text in it.

    ostream* pout;
    (*pout) &lt;&lt; &quot;Some Text&quot;;

Is there a way to extract the stream and store it in a string of type `char*`?

Converting ostream into standard string

What is the difference between `window.onload`, `document.onready` and `body.onload` ?

window.onload vs. body.onload vs. document.onready

In Bash, when I am typing a command, I press &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;U&lt;/kbd&gt;, all characters from the beginning of the line to the cursor are going to be removed. However, in zsh, if I pressed &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;U&lt;/kbd&gt;, the whole line is gone.

How to do the same in Zsh as in Bash?

Which shortcut in Zsh does the same as Ctrl-U in Bash?

<p>In Bash, when I am typing a command, I press <kbd>Ctrl</kbd>+<kbd>U</kbd>, all characters from the beginning of the line to the cursor are going to be removed. However, in zsh, if I pressed <kbd>Ctrl</kbd>+<kbd>U</kbd>, the whole line is gone.</p>
<p>How to do the same in Zsh as in Bash?</p>


How can I update  multiple git repositories from their shared parent&#39;s directory without `cd`&#39;ing into each repo&#39;s root directory? I have the following which are all separate git repositories (**not** submodules):

    /plugins/cms
    /plugins/admin
    /plugins/chart

I want to update them all at once or at least simplify my current workflow:

    cd ~/plugins/admin
    git pull origin master
    cd ../chart
    git pull

etc.

Run git pull over all subdirectories

I have a script that looks something like this:

    export foo=/tmp/foo                                          
    export bar=/tmp/bar

Every time I build I run &#39;source init_env&#39; (where init_env is the above script) to set up some variables.

To accomplish the same in Python I had this code running,

    reg = re.compile(&#39;export (?P&lt;name&gt;\w+)(\=(?P&lt;value&gt;.+))*&#39;)
    for line in open(file):
        m = reg.match(line)
        if m:
            name = m.group(&#39;name&#39;)
            value = &#39;&#39;
            if m.group(&#39;value&#39;):
                value = m.group(&#39;value&#39;)
            os.putenv(name, value)

But then *someone* decided it would be nice to add a line like the following to the `init_env` file:

    export PATH=&quot;/foo/bar:/bar/foo:$PATH&quot;     

Obviously my Python script fell apart. I could modify the Python script to handle this line, but then it&#39;ll just break later on when *someone* comes up with a new feature to use in the `init_env` file.

The question is if there is an easy way to run a Bash command and let it modify my `os.environ`?


Emulating Bash &#39;source&#39; in Python

I often need to kill a process during programming.

The way I do it now is:

    [~]$ ps aux | grep &#39;python csp_build.py&#39;
    user    5124  1.0  0.3 214588 13852 pts/4    Sl+  11:19   0:00 python csp_build.py
    user    5373  0.0  0.0   8096   960 pts/6    S+   11:20   0:00 grep python csp_build.py
    [~]$ kill 5124

How can I extract the process id automatically and kill it in the same line?

Like this:

    [~]$ ps aux | grep &#39;python csp_build.py&#39; | kill &lt;regex that returns the pid&gt;

Find and kill a process in one line using bash and regex

I created a bash script that opens several gnome-terminals, connect to classroom computers via ssh and run a script.

How can I avoid that the gnome-terminal closes after the script is finished? Note that I also want to be able to enter further commands in the terminal.

Here is an example  of my code:

    gnome-terminal -e &quot;ssh root@&lt;ip&gt; cd /tmp &amp;&amp; ls&quot;



Avoid gnome-terminal close after script execution?

Various bash commands I use -- fancy diffs, build scripts, etc, produce lots of color output.

When I redirect this output to a file, and then `cat` or `less` the file later, the colorization is gone -- presumably b/c the act of redirecting the output stripped out the color codes that tell the terminal to change colors.

Is there a way to capture colorized output, including the colorization?



Can colorized output be captured via shell redirect?

So I&#39;ve got ZSH doing all this cool stuff now, but what would be REALLY awesome is if I could get it to run &#39;ls -a&#39; implicitly after every time I call &#39;cd&#39;. I figure this must go in the .zlogin file or the .aliases file, I&#39;m just not sure what the best solution is. Thoughts? Reference material?

ZSH: automatically run ls after every cd

Looking from a programmer&#39;s point of view then shell script is just another programming language, where one has to learn and conform to the rules of the language. However, I have to admit that this syntax is the weirdest style I have ever seen in a rather commonly used language. Did the shell take this syntax from an older language that it descents from? Is there a special implication / meaning in the syntax?

As an example, here is a little snippet that I take from [another post][1] on SO

    case &quot;$1&quot; in
        start)
            start
            ;;
        stop)
            stop
            ;;
        restart)
            stop
            start
            ;;
        status)
            check_status
            ;;
        *)
            echo &quot;Usage: $0 {start|stop|restart|status}&quot;
            exit 1
            ;;
    esac

Looking at this, firstly I can see that `case` ends with `esac`, which is its reversed form (like `if` ending in `fi`). Secondly I understand that each case is followed by a `)`. Fair enough, but why on earth do I need two `;` at the end of each statement? I would also say that the `)` without an accompanying `(` is ugly.

I&#39;m looking for more information about the historical aspect of the language, but I&#39;m open for technical reasons as well.

  [1]: https://stackoverflow.com/questions/3989656/init-d-celery-script-for-centos/4046542#4046542

What is the reason for the weird syntax of the &quot;case&quot; statement in a bash/zsh script?

It&#39;s frustrating when I do something like `man bindkey` and i get:

&lt;pre&gt;
BUILTIN(1)                BSD General Commands Manual               BUILTIN(1)

NAME
     builtin, !, %, ., :, @, {, }, alias, alloc, bg, bind, bindkey, break, breaksw, builtins, case, cd, chdir, command,
     complete, continue, default, dirs, do, done, echo, echotc, elif, else, end, endif, endsw, esac, eval, exec, exit,
     export, false, fc, fg, filetest, fi, for, foreach, getopts, glob, goto, hash, hashstat, history, hup, if, jobid,
     jobs, kill, limit, local, log, login, logout, ls-F, nice, nohup, notify, onintr, popd, printenv, pushd, pwd, read,
     readonly, rehash, repeat, return, sched, set, setenv, settc, setty, setvar, shift, source, stop, suspend, switch,
     telltc, test, then, time, times, trap, true, type, ulimit, umask, unalias, uncomplete, unhash, unlimit, unset,
     unsetenv, until, wait, where, which, while -- shell built-in commands

SYNOPSIS
     builtin [-options] [args ...]

DESCRIPTION
     Shell builtin commands are commands that can be executed within the running shell&#39;s process.  Note that, in the
&lt;/pre&gt;

Is there an easy way to access the documentation for such commands?


How can I read documentation about built in zsh commands?

I&#39;d like to try out the ZSH shell on my Mac, but I also do a lot of Ruby and Rails development, so I use RVM quite a bit too. The problem is that I can&#39;t seem to get RVM to work in ZSH, and it&#39;s working fine in the default Bash shell:

    &gt; zsh
    &gt; rvm 1.9.2
    &gt; ruby -v
    ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
    &gt; which ruby
    /usr/bin/ruby

I can definitely confirm that RVM is installed, as well as ruby 1.9.2 under RVM; I use it all the time in Bash. Running an `rvm list` in ZSH shows this, interestingly:

    rvm rubies

       ruby-1.8.7-p302 [ x86_64 ]
    =&gt; ruby-1.9.2-p0 [ x86_64 ]

This is happening on both my iMac and MacBook Pro. I am using OS X 10.6.6 on both, ZSH 4.3.9 on the iMac (4.3.10 on the laptop). Nothing fancy like oh-my-zsh just yet.

I tried looking at the documentation on RVM&#39;s [website][1], but nothing helped me there.


  [1]: http://rvm.beginrescueend.com/integration/zsh/

RVM is not working in ZSH

I have a function which outputs many rows of information which I want to format in columns.  The problem is that the width of any particular &quot;cell&quot; (if I may use that term) of data is variable, so piping it to something like awk does not give me what I want.  

The function is &quot;keys&quot; (not that it matters) and I&#39;m trying something like this:

    $ keys | awk &#39;{ print $1&quot;\t\t&quot; $2 }&#39;

but the output (a snippet of it, that is) looks like this:

    &quot;option-y&quot;		yank-pop
    &quot;option-z&quot;		execute-last-named-cmd
    &quot;option-|&quot;		vi-goto-column
    &quot;option-~&quot;		_bash_complete-word
    &quot;option-control-?&quot;		backward-kill-word
    &quot;control-_&quot;		undo
    &quot;control-?&quot;		backward-delete-char


How can I force things to stay in neat columns?  Is this possible with awk, or do I need to use something else?


Content Type	Original Author	Original Content on Stackoverflow
Question	Kent	View Question on Stackoverflow
Solution 1 - Bash	Gilles 'SO- stop being evil'	View Answer on Stackoverflow

Which shortcut in Zsh does the same as Ctrl-U in Bash?

Bash Problem Overview

Bash Solutions

Solution 1 - Bash

window.onload vs. body.onload vs. document.onready

Converting ostream into standard string

Attributions