Re: grep

[Chris F.A. Johnson]

On Mon, 5 Jul 2004, Stepan Kasal wrote:

> ----- Forwarded message from Daniel Skinner <address@hidden> -----
> Date: Fri, 2 Jul 2004 11:28:18 -0500
> To: "Stepan Kasal" <address@hidden>
[snip]
> So in conclusion:
> If the line in a file you are grep'ing looks like this
>
> [mysillygrep_2] This is my grep
>
> And the name of this file is the same as the number
>
> $ ls
> 2
>
> And you issue the following commands
>
> tmp=`grep silly 2`
> echo $tmp
>
> it returns the following as the line due to the brackets
>
> 2 This is my grep
>
> Instead of the actual line which should be
>
> [mysillygrep_2] This is my grep

    The grep command DOES return the expected value, as can be seen
    by:

$ echo "$tmp"
[mysillygrep_2] This is my grep

    If you do not quote the variable, filename expansion is done, and
    [mysillygrep_2] will match the file 2.

$ echo $tmp
2 This is my grep

    If you had a file y, that would be printed, as would any other
    files matching the pattern:

$ touch y l g
$ echo $tmp
2 g l y This is my grep


--
        Chris F.A. Johnson                      http://cfaj.freeshell.org
        =================================================================
                Everything in moderation -- including moderation