oddities in /sbin/service
Mikkel L. Ellertson
mikkel at infinity-ltd.com
Sat Nov 18 14:36:06 UTC 2006
Robert P. J. Day wrote:
> as part of a crash course in teaching some folks scripting this last
> week, i grabbed a random FC6 script and walked through it with them.
> i chose /sbin/service since it's a nice example of several scripting
> features in a single place, but that script does have some strange
> code in it.
>
> first, as an exercise for the reader, what is so amusing about
> *this* snippet of script:
>
>
> case "${1}" in
> --help | -h | --h* )
>
>
> also, based on the structure of the main argument processing loop,
> you can invoke service in some weird ways:
>
> $ service httpd --version
> service ver. 0.91
>
> where you can see that the first argument of service name "httpd" is
> superseded by "--version". is that by design? just curious.
>
> rday
>
I would think it is. I believe that is standard behavior for most of
the commands. If you have the --version argument, it displays the
version information and exits.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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