skill

SKILL(1)                         User Commands                        SKILL(1)

NAME
       skill, snice - send a signal or report process status

SYNOPSIS
       skill [signal] [options] expression
       snice [new priority] [options] expression

DESCRIPTION
       These  tools are obsolete and unportable.  The command syntax is poorly
       defined.  Consider using the killall, pkill,  and  pgrep  commands  in-
       stead.

       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.

OPTIONS
       -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.

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.

       --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.

SIGNALS
       The behavior of signals is explained in signal(7) manual page.

EXAMPLES
       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.

SEE ALSO
       kill(1), kill(2), killall(1), nice(1), pkill(1), renice(1), signal(7)

STANDARDS
       No standards apply.

AUTHOR
       Albert Cahalan <albert@users.sf.net> wrote skill and snice in 1999 as a
       replacement for a non-free version.

REPORTING BUGS
       Please send bug reports to <procps@freelists.org>

procps-ng                         2018-05-31                          SKILL(1)