Linux user and group management

Created on Dec 4, ’22 ・ Last update on Mar 5, ’23

$ cat /etc/group
group name:password:group id:group users

• groups: show groups to which current user belong to
• groupmod: modify a group
• groupadd: create a new group
• groupdel: delete an existing group
• gpasswd -d user2 web
• users: show logged in users
• usermod: modify user account
  • usermod -aG group user, add user user into group group
• useradd: add a user account
  • useradd -m -c "comment" -s /path/to/shell -G group_list user_name
  • -m create home
• userdel: delete a user account