#to show processes owned by a specific user
ps -u <username>
 
#to remove processes owned by a specific user
pkill -u <username>
wloginctl
loginctl list-users
loginctl user-status <UID>
loginctl terminate-user <Username>
 
loginctl list-sessions
loginctl terminate-session <Session>- 
loginctlis a part of systemd, which manages users and sessions - 
One user can have multiple sessions open simultaneously
 - 
loginctl list-users and loginctl list-sessions shows users and sessions
 - 
loginctl user-status <UID>shows a tree of processes currently opened by this user - 
loginctl terminate-sessionand loginctl terminate-user can be used to stop current sessions or users