who
who linux command cheatsheet by Thamizhiniyan C S
Last updated
who linux command cheatsheet by Thamizhiniyan C S
Last updated
| Command | Description |
|---|---|
-a, --all
Print all information provided by -b, -d, --login, -p, -r, -t, -T, -u options.
-b, --boot
Display the time of the last system boot.
-d, --dead
Print dead processes.
-H, --heading
Print a line of column headings.
--ips
Print IPs instead of hostnames. With --lookup, canonicalizes based on stored IP, if available, rather than stored hostname.
-l, --login
Print system login processes.
--lookup
Attempt to canonicalize hostnames via DNS.
-m
Display only hostname and user associated with stdin.
-p, --process
Print active processes spawned by init.
-q, --count
Print all login names and the number of users logged on.
-r, --runlevel
Print the current runlevel.
-s, --short
Print only name, line, and time (default).
-t, --time
Print the last system clock change.
-T, -w, --mesg
Add user's message status as +, - or ?.
-u, --users
List users logged in.
--message
Same as -T.
--writable
Same as -T.
--help
Display help information and exit.
--version
Output version information and exit.
Display a list of the logged-in usernames.
Achieve the same effect as 'who' with the short format.
Print column headers above the list of users.
Display information about the current user only.
Show a list of available terminals.
Display the time of the last system boot.
List the usernames and the number of users currently logged on.
Show the user's message status.
Print a list of active processes spawned by init.
Print a list of dead processes.
Display the current runlevel of the system.
Print the last time the system clock was changed.
Show how long each user has been idle.
Print all information provided by various options in a single output.