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Full Discussion: Debian, string in string.
Top Forums Shell Programming and Scripting Debian, string in string. Post 303027258 by MuntyScrunt on Wednesday 12th of December 2018 02:42:05 PM
Old 12-12-2018
Debian, string in string.

Example, check if user is in a group.

echo groups
Berty adm, dialout, cdrom, foo, foo

how to check that 'dialout' is in that output

I thought of awk '{print $x}' but x won't aways be the same.

Thanks.
 

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groups(1)							   User Commands							 groups(1)

NAME
groups - print group membership of user SYNOPSIS
groups [user]... DESCRIPTION
The command groups prints on standard output the groups to which you or the optionally specified user belong. Each user belongs to a group specified in /etc/passwd and possibly to other groups as specified in /etc/group. Note that /etc/passwd specifies the numerical ID (gid) of the group. The groups command converts gid to the group name in the output. EXAMPLES
The output takes the following form: example% groups tester01 tester02 tester01 : staff tester02 : staff example% FILES
/etc/passwd /etc/group ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
group(4), passwd(4), attributes(5) SunOS 5.11 14 Sep 1992 groups(1)
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