see user groups linux code example
Example 1: linux show groups
cut -d: -f1 /etc/group | sort
Example 2: check which users are part of a group linux
grep 'group-name-here' /etc/group
Example 3: how to check user in group linux
# to see the group joined by current user
$ id
groups
groups {USERNAME}
groups vivek
Example 4: check user group console linux
groups
groups userName-Here
Example 5: linux user groups
groups $username