Try:

    read -e -p &quot;Glassfish Path:&quot; GF_DIR

`-e` [enables readline][1]:

&lt;!-- language: none --&gt;

     -e 
        If the standard input is coming from a terminal, Readline is used
        to obtain the line.


  [1]: http://ss64.com/bash/read.html

is it possible to specify non-capturing groups in sed?

if so, how?

how do you specify non-capturing groups in sed?

What the difference between the float and integer data type when size is same?

What is the difference between the float and integer data type when the size is the same?

Inside my Bash script, I&#39;m reading some variables entered by the user with `read`:

    read -p &quot;Glassfish Path:&quot; GF_DIR

Now I want that the user gets a autocompletion when he has to enter a directory, like when you are on the Bash shell. So when he enters the first letters of a directory, he can autocomplete it by hitting TAB.
Is that possible?

Get autocompletion when invoking a &quot;read&quot; inside a Bash script

Inside my Bash script, I'm reading some variables entered by the user with <code>read</code>:
<pre><code class="hljs language-arduino">read -p "Glassfish Path:" GF_DIR
</code></pre>
Now I want that the user gets a autocompletion when he has to enter a directory, like when you are on the Bash shell. So when he enters the first letters of a directory, he can autocomplete it by hitting TAB.
Is that possible?

How would I count the total number of lines present in all the files in a git repository?

`git ls-files` gives me a list of files tracked by git.

I&#39;m looking for a command to `cat` all those files. Something like

    git ls-files | [cat all these files] | wc -l

Count number of lines in a git repository

I am writing a very simple script that calls another script, and I need to propagate the parameters from my current script to the script I am executing.

For instance, my script name is `foo.sh` and calls `bar.sh`

foo.sh:

    bar $1 $2 $3 $4

How can I do this without explicitly specifying each parameter?

Propagate all arguments in a bash shell script

Is there a way to change the command line arguments in a Bash script? For example, a Bash script is invoked like this:

    ./foo arg1 arg2  

Is there a way to change the value of arg1 within the script? Something like:

    $1=&quot;chintz&quot;

How to change a command line argument in Bash?

I want to execute `mongo` commands in shell script, e.g. in a script `test.sh`:

    #!/bin/sh
    mongo myDbName
    db.mycollection.findOne()
    show collections

When I execute this script via `./test.sh`, then the connection to MongoDB is established, but the following commands are not executed.

**How to execute other commands through shell script `test.sh`?**

How to execute mongo commands through shell scripts?

Example `file.txt`:

      100 foo
      2 bar
      300 tuu

When using `sort -k 1,1 file.txt`, the order of lines will not change, though we are expecting :

      2 bar
      100 foo
      300 tuu

How to sort a field consisting of numbers based on the absolute numerical value?

How to sort a file, based on its numerical values for a field?

To run a process in the background in bash is fairly easy.

    $ echo &quot;Hello I&#39;m a background task&quot; &amp;
    [1] 2076
    Hello I&#39;m a background task
    [1]+  Done                    echo &quot;Hello I&#39;m a background task&quot;

However the output is verbose. On the first line is printed the job id and process id of the background task, then we have the output of the command, finally we have the job id, its status and the command which triggered the job.

Is there a way to suppress the output of running a background task such that the output looks exactly as it would without the ampersand at the end? I.e:

    $ echo &quot;Hello I&#39;m a background task&quot; &amp;
    Hello I&#39;m a background task

The reason I ask is that I want to run a background process as part of a tab-completion command so the output of that command must be uninterrupted to make any sense.


Running bash commands in the background without printing job and process ids

I would like to get auto-completion on my python scripts also in the arguments.

I had never really understood how the bash_completion worked (for arguments), but after I digged in I understood that:

1. it uses &quot;complete&quot; to bind a completing function to a command
2. every completing function basically is a copy of the argument parser

The second point in particular is not great, because I would like to have it automatically generated.

The best thing would be that the shell asks to my program at every TAB about what to complete, but I have the impression that this can&#39;t really work, is that correct?

The second option is probably just to write a converter from an argparse parser to a shell function which completes correctly.


Python argparse and bash completion

No matter what I try and do I can&#39;t seem to make git tab/auto completion work in my zsh shell. I&#39;ve downloaded the bash-completion script and the zsh-completion one and followed the instructions, but I can&#39;t make it work. 

I&#39;ve reinstalled oh-my-zsh but that didn&#39;t seem to help or make any difference. 

Can anyone who&#39;s got it working describe to me their setup so I can try an emulate it to get it working for me?

To be specific, what I&#39;ve done so far is:

* Switched to using zsh as my default shell
* Installed oh-my-zsh
* Downloaded https://github.com/git/git/blob/master/contrib/completion/git-completion.bash and saved it in `~/.completion/git/git-completion.sh`
* Downloaded https://github.com/git/git/blob/master/contrib/completion/git-completion.zsh and saved that in `~/.zsh/_git`
* Added `zstyle &#39;:completion:*:*:git:*&#39; script ~/.completion/git/git-completion.sh`

No luck.

Content Type	Original Author	Original Content on Stackoverflow
Question	Wolkenarchitekt	View Question on Stackoverflow
Solution 1 - Bash	miku	View Answer on Stackoverflow

Get autocompletion when invoking a "read" inside a Bash script

Bash Problem Overview

Bash Solutions

Solution 1 - Bash

What is the difference between the float and integer data type when the size is the same?

how do you specify non-capturing groups in sed?

Attributions