[NMLUG] grep help

[pi at pihost.us (Pi)]

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id -Gn <user> | grep 'groupname'

Ed Heron wrote:
|  I'm writing a bash script that needs to check if a particular person is
| in a specific group.
|
|  I'm using:
|
| if grep "^${group}:.*[:,]${user}[,$]" /etc/group >/dev/null ; then echo
| "${user} is a member of ${group}" ; fi
|
|  Unfortunately, if $user is last in the list it appears to be false.  If
| I `grep "^${group}:.*[:,]${user}$" /etc/group` it succeeds.
|
|  I don't use many regexp, am I missing something?
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