1SKILL(1)                         User Commands                        SKILL(1)
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NAME

6       skill, snice - send a signal or report process status
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SYNOPSIS

9       skill [signal] [options] expression
10       snice [new priority] [options] expression
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DESCRIPTION

13       These  tools are obsolete and unportable.  The command syntax is poorly
14       defined.  Consider using the killall, pkill,  and  pgrep  commands  in‐
15       stead.
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17       The  default  signal for skill is TERM.  Use -l or -L to list available
18       signals.  Particularly useful signals include  HUP,  INT,  KILL,  STOP,
19       CONT,  and  0.   Alternate  signals  may be specified in three ways: -9
20       -SIGKILL -KILL.
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22       The default priority for snice is +4.  Priority numbers range from  +20
23       (slowest)  to  -20 (fastest).  Negative priority numbers are restricted
24       to administrative users.
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OPTIONS

27       -f, --fast
28              Fast mode.  This option has not been implemented.
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30       -i, --interactive
31              Interactive use.  You will be asked to approve each action.
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33       -l, --list
34              List all signal names.
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36       -L, --table
37              List all signal names in a nice table.
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39       -n, --no-action
40              No action; perform a simulation of events that would  occur  but
41              do not actually change the system.
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43       -v, --verbose
44              Verbose; explain what is being done.
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46       -w, --warnings
47              Enable warnings.  This option has not been implemented.
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49       -h, --help
50              Display help text and exit.
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52       -V, --version
53              Display version information.
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PROCESS SELECTION OPTIONS

56       Selection  criteria  can be: terminal, user, pid, command.  The options
57       below may be used to ensure correct interpretation.
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59       -t, --tty tty
60              The next expression is a terminal (tty or pty).
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62       -u, --user user
63              The next expression is a username.
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65       -p, --pid pid
66              The next expression is a process ID number.
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68       -c, --command command
69              The next expression is a command name.
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71       --ns pid
72              Match the processes that belong to the same namespace as pid.
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74       --nslist ns,...
75              list which namespaces will be considered for  the  --ns  option.
76              Available namespaces: ipc, mnt, net, pid, user, uts.
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SIGNALS

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

82       snice -c seti -c crack +7
83              +Slow down seti and crack commands.
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85       skill -KILL -t /dev/pts/*
86              Kill users on PTY devices.
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88       skill -STOP -u viro -u lm -u davem
89              Stop three users.
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SEE ALSO

92       kill(1), kill(2), killall(1), nice(1), pkill(1), renice(1), signal(7)
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STANDARDS

95       No standards apply.
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AUTHOR

98       Albert Cahalan ⟨albert@users.sf.net⟩ wrote skill and snice in 1999 as a
99       replacement for a non-free version.
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REPORTING BUGS

102       Please send bug reports to ⟨procps@freelists.org⟩
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106procps-ng                        October 2011                         SKILL(1)