K.S. Bhaskar on 5 Feb 2010 15:30:06 -0800

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[PLUG] Equivalent of id for groups

I can use the id command in a shell script to determine whether a user
is valid, e.g.,

$ id -u auntsue
$ id -u xyzzy
id: xyzzy: No such user

Is there an equivalent command to check for the validity of a group
name?  I can't scan /etc/group because the group may be defined by
NIS.  Ideally, it should be something that will work on Linux as well
as UNIX flavors.

Thanks in advance.

-- Bhaskar

Windows does to computers what smoking does to humans
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