Re: OT: Bash question - ReadList.com

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OT: Bash question
\ Anthony E. Caudel (20 Sep 2007)
. \ Dirk Heinrichs (20 Sep 2007)
. \ Frank Gruellich (20 Sep 2007)
. . \ Anthony E. Caudel (21 Sep 2007)

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Subject:	Re: OT: Bash question
Group:	Gentoo-user
From:	Anthony E. Caudel
Date:	21 Sep 2007

Frank Gruellich wrote:
> * Anthony E. Caudel <tony.caudel> 20. Sep 07:
>
>> Is there any way to make "pushd" and "popd" (Bash built-ins) silent?
>> [snip] For example:
>>
>> OLD_VER=$(pushd /boot; ls kernel-* | sort | head -1; popd)
>> echo $OLD_VER
>> /boot ~ kernel-2.6.22-gentoo-r2 ~
>>
>
> For that exact example... why you bother at all? $( ) opens a subshell
> and cd's in subshells don't interact with parent shell so you could
> simply write:
>
> OLD_VER=$(cd /boot; ls kernel-* | sort | head -1)
>
> or
>
> OLD_VER=`cd /boot; ls kernel-* | sort | head -1`
>
> if you want to be more compatible. Or am I missing a point?
>
> HTH, kind regards,
> Frank.
>
Thanks, Frank. That is the best solution.

Tony

--
Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.
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