grep medintux /etc/group || groupadd medintux
or in a if operation:
if [[ ! grep medintux /etc/group ]]
then
groupadd medintux
fi
Regards,
Frank.
Niki Kovacs <contact@xxxxxxxxxxxxx> schrieb am 01.03.2010 17:03:46:
> Hi,
>
> I'm currently writing an install script for an application, and my
> already limited Bash skills are a bit rusty.
>
> I want to check if a group exists, and if it doesn't, then create it.
>
> Only thing I found is:
>
> if [ grep medintux /etc/group ]; then
> continue
> else
> groupadd medintux
> fi
>
> Apparently I can't seem to "negate" the test, e. g. something like
>
> if !(grep medintux /etc/group)
>
> Any suggestions for the correct syntax here ?
>
> Thanks,
>
> Niki
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