Manual Reference Pages  - SKILL (1)

NAME

skill, snice - send a signal or report process status

CONTENTS

Synopsis
Description
Options
Signals
Examples
Standards
Author

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 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.

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.

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 wrote skill and snice in 1999 as a replacement for a non-free version.

REPORTING BUGS

Please send bug reports to


procps-ng SKILL (1) October 2011
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