Manual Reference Pages - SKILL (1)
skill, snice - send a signal or report process status
[ new priority]
These tools are obsolete and unportable. The command syntax is
poorly defined. Consider using the killall, pkill, and pgrep
The default signal for skill is TERM. Use -l or -L to list
available signals. Particularly useful signals include HUP, INT,
KILL, STOP, CONT, and 0. Alternate signals may be specified in three
ways: -9 -SIGKILL -KILL.
The default priority for snice is +4. Priority numbers range from
+20 (slowest) to -20 (fastest). Negative priority numbers are
restricted to administrative users.
Fast mode. This option has not been implemented.
Interactive use. You will be asked to approve each action.
List all signal names.
List all signal names in a nice table.
No action; perform a simulation of events that would occur but do not
actually change the system.
Verbose; explain what is being done.
Enable warnings. This option has not been implemented.
Display help text and exit.
Display version information.
PROCESS SELECTION OPTIONS
Selection criteria can be: terminal, user, pid, command. The options
below may be used to ensure correct interpretation.
-t, --tty tty
The next expression is a terminal (tty or pty).
-u, --user user
The next expression is a username.
-p, --pid pid
The next expression is a process ID number.
-c, --command command
The next expression is a command name.
The behavior of signals is explained in
snice -c seti -c crack +7
Slow down seti and crack commands.
skill -KILL -t /dev/pts/*
Kill users on PTY devices.
skill -STOP -u viro -u lm -u davem
Stop three users.
No standards apply.
wrote skill and snice in 1999 as a replacement for a non-free
Please send bug reports to
procps-ng SKILL (1)
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