groups — print the groups a user is in
Print group memberships for the current user:
Print group memberships for a specific user:
Print group memberships for a list of users:
groups username1 username2 username3
groups [OPTION]... [USERNAME]...
Print group memberships for each USERNAME or, if no USERNAME is specified, for the current process (which may differ if the groups database has changed).
display this help and exit
output version information and exit
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
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Copyright © 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Full documentation <https://www.gnu.org/software/coreutils/groups>
or available locally via: info '(coreutils) groups invocation'
credentials(7), group(5), procenv(1).