skill, snice - send a signal or report process status
skill [signal] [options] expression snice [new priority] [options] expression
These tools are obsolete and unportable. The command syntax is poorly defined. Consider using the killall, pkill, and pgrep commands instead. 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.
-f, --fast Fast mode. This option has not been implemented. -i, --interactive Interactive use. You will be asked to approve each action. -l, --list List all signal names. -L, --table List all signal names in a nice table. -n, --no-action No action; perform a simulation of events that would occur but do not actually change the system. -v, --verbose Verbose; explain what is being done. -w, --warnings Enable warnings. This option has not been implemented. -h, --help Display help text and exit. -V, --version Display version information.
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. --ns pid Match the processes that belong to the same namespace as pid. --nslist ns,... list which namespaces will be considered for the --ns option. Available namespaces: ipc, mnt, net, pid, user, uts.
The behavior of signals is explained in signal(7) manual page.
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.
Albert Cahalan firstname.lastname@example.org wrote skill and snice in 1999 as a replacement for a non-free version.
Please send bug reports to email@example.com
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