[GTALUG] Ubuntu (or debian): apt-get auto-remove?

Chris F.A. Johnson chris at cfajohnson.com
Mon Aug 17 03:06:13 UTC 2015


On Sun, 16 Aug 2015, D. Hugh Redelmeier wrote:

> | From: Bob Jonkman <bjonkman at sobac.com>
>
> Thanks.
>
> Here's a slightly shorter version.  Picky, picky, picky.  Looking gift
> horse in the mouth.
>
> I try to start all my scripts with "set -eu" so that more bugs will be
> detected.
>
> "set -e" causes the shell to exit if a command unexpectedly fails.
> That is, a command returns non-zero and was invoked in a non-test
> context.  Just what you want.

     It only causes the shell to exit if a simple command fails.

     Best practice is not to use it at all.

    <http://mywiki.wooledge.org/BashFAQ/105>

> "set -u" tells the shell to treat a reference to an undefined
> parameter as an error.  It will make no difference in this script.
> Until the script evolves more complexity.

    There's no point to using set -u after a script has been debugged.

-- 
Chris F.A. Johnson, <http://cfajohnson.com>


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