Provided by: sssd-tools_1.8.2-0ubuntu1_amd64 

NAME
sss_groupmod - modify a group
SYNOPSIS
sss_groupmod [options] GROUP
DESCRIPTION
sss_groupmod modifies the group to reflect the changes that are specified on the command line.
OPTIONS
-a,--append-group GROUPS Append this group to groups specified by the GROUPS parameter. The GROUPS parameter is a comma separated list of group names. -r,--remove-group GROUPS Remove this group from groups specified by the GROUPS parameter. -h,--help Display help message and exit.
SEE ALSO
sss_groupdel(8), sss_groupadd(8), sss_groupshow(8), sss_useradd(8), sss_userdel(8), sss_usermod(8).
AUTHORS
The SSSD upstream - http://fedorahosted.org/sssd