scnzzh@ZUBT1:~$ sudo gpasswd -d root docker Removing user root from group docker scnzzh@ZUBT1:~$ sudo usermod -aG docker scnzzh scnzzh@ZUBT1:~$ groups scnzzh adm cdrom sudo dip plugdev lpadmin lxd sambashare scnzzh@ZUBT1:~$ groups scnzzh scnzzh : scnzzh adm cdrom sudo dip plugdev lpadmin lxd sambashare docker If relogin, the 'groups' and 'groups scnzzh' will show the same groups. scnzzh@ZUBT1:~$ id scnzzh uid=1000(scnzzh) gid=1000(scnzzh) groups=1000(scnzzh),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),120(lpadmin),131(lxd),132(sambashare),997(docker)
