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groups - print the groups a user is in
groups [username...]
groups {--help,--version}
This manual page documents the GNU
version of groups. groups prints the names of the supplementary groups
that each given username, or the current process if none are given, is
in. If user names are given, the name of each user is printed before the
list of that user's groups.
The group lists are equivalent to the output
of the command `id -Gn'.
When GNU groups is invoked with exactly
one argument, the following options are recognized:
- --help
- Print a usage
message on standard output and exit successfully.
- --version
- Print version
information on standard output then exit successfully.
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