126 lines
3.2 KiB
Groff
126 lines
3.2 KiB
Groff
'\" t
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.\" (The preceding line is a note to broken versions of man to tell
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.\" them to pre-process this man page with tbl)
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.\" Man page for skill and snice.
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.\" Licensed under version 2 of the GNU General Public License.
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.\" Written by Albert Cahalan, converted to a man page by
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.\" Michael K. Johnson
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.\"
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.TH SKILL 1 "October 2011" "procps-ng" "User Commands"
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.SH NAME
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skill, snice \- send a signal or report process status
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.SH SYNOPSIS
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.B skill
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.RI [ signal ]
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.RI [ options ]
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.I expression
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.br
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.B snice
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.RI [ "new priority" ]
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.RI [ options ]
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.I expression
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.SH DESCRIPTION
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These tools are obsolete and unportable. The command syntax is
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poorly defined. Consider using the
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.BR killall ,
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.BR pkill ,
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and
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.B pgrep
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commands instead.
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.PP
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The default signal for \fBskill\fP is TERM. Use \fB\-l\fP or \fB\-L\fP to list
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available signals. Particularly useful signals include HUP, INT,
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KILL, STOP, CONT, and 0. Alternate signals may be specified in three
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ways: \fB\-9\fP \fB\-SIGKILL\fP \fB\-KILL\fP.
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.PP
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The default priority for \fBsnice\fP is +4. Priority numbers range from
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+20 (slowest) to \-20 (fastest). Negative priority numbers are
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restricted to administrative users.
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.SH OPTIONS
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.TP
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.BR \-f , \ \-\-fast
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Fast mode. This option has not been implemented.
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.TP
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.BR \-i , \ \-\-interactive
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Interactive use. You will be asked to approve each action.
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.TP
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.BR \-l , \ \-\-list
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List all signal names.
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.TP
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.BR \-L , \ \-\-table
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List all signal names in a nice table.
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.TP
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.BR \-n , \ \-\-no\-action
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No action; perform a simulation of events that would occur but do not
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actually change the system.
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.TP
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.BR \-v , \ \-\-verbose
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Verbose; explain what is being done.
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.TP
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.BR \-w , \ \-\-warnings
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Enable warnings. This option has not been implemented.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display help text and exit.
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Display version information.
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.PD
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.SH "PROCESS SELECTION OPTIONS"
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Selection criteria can be: terminal, user, pid, command. The options
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below may be used to ensure correct interpretation.
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.TP
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\fB\-t\fR, \fB\-\-tty\fR \fItty\fR
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The next expression is a terminal (tty or pty).
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.TP
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\fB\-u\fR, \fB\-\-user\fR \fIuser\fR
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The next expression is a username.
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.TP
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\fB\-p\fR, \fB\-\-pid\fR \fIpid\fR
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The next expression is a process ID number.
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.TP
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\fB\-c\fR, \fB\-\-command\fR \fIcommand\fR
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The next expression is a command name.
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.TP
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\fB\-\-ns \fIpid\fR
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Match the processes that belong to the same namespace as pid.
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.TP
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\fB\-\-nslist \fIns,...\fR
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list which namespaces will be considered for the \fB\-\-ns\fP option.
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Available namespaces: ipc, mnt, net, pid, user, uts.
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.PD
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.SH SIGNALS
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The behavior of signals is explained in
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.BR signal (7)
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manual page.
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.SH EXAMPLES
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.TP
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.B snice -c seti -c crack +7
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+Slow down \fBseti\fP and \fBcrack\fP commands.
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.TP
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.B skill \-KILL \-t /dev/pts/*
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Kill users on PTY devices.
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.TP
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.B skill \-STOP \-u viro \-u lm \-u davem
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Stop three users.
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.SH "SEE ALSO"
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.BR kill (1),
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.BR kill (2),
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.BR killall (1),
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.BR nice (1),
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.BR pkill (1),
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.BR renice (1),
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.BR signal (7)
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.SH STANDARDS
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No standards apply.
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.SH AUTHOR
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.UR albert@users.sf.net
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Albert Cahalan
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.UE
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wrote skill and snice in 1999 as a replacement for a non-free
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version.
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.SH "REPORTING BUGS"
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Please send bug reports to
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.UR procps@freelists.org
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.UE
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