fe75e26ab6
The entire tree's polluted with inappropriate trailing whitespace. This commit rids our environment of all of those useless keystrokes. Unfortunately, it sure ain't a permanent solution and requires every contributor to instruct their editor(s) to prevent or eliminate them. Plus it's strongly recommended we all insert something like what's shown below to our '.gitconfig' file so as to provide at least some warnings when we try to apply any patches (git am) that do contain the #@!%& things! References(s): ~/.gitconfig excerpt --------------------------------- [core] whitespace = trailing-space, space-before-tab, blank-at-eof [apply] whitespace = warn --------------------------------- ~/.gitconfig excerpt Signed-off-by: Jim Warner <james.warner@comcast.net>
236 lines
5.2 KiB
Groff
236 lines
5.2 KiB
Groff
.\" Manual page for pgrep / pkill.
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.\" Licensed under version 2 of the GNU General Public License.
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.\" Copyright 2000 Kjetil Torgrim Homme
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.\"
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.TH PGREP "1" "October 2012" "procps-ng" "User Commands"
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.SH NAME
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pgrep, pkill \- look up or signal processes based on name and other attributes
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.SH SYNOPSIS
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.B pgrep
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[options] pattern
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.br
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.B pkill
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[options] pattern
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.SH DESCRIPTION
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.B pgrep
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looks through the currently running processes and lists the process IDs which
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match the selection criteria to stdout. All the criteria have to match.
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For example,
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.IP
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$ pgrep \-u root sshd
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.PP
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will only list the processes called
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.B sshd
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AND owned by
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.BR root .
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On the other hand,
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.IP
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$ pgrep \-u root,daemon
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.PP
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will list the processes owned by
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.B root
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OR
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.BR daemon .
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.PP
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.B pkill
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will send the specified signal (by default
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.BR SIGTERM )
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to each process instead of listing them on stdout.
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.SH OPTIONS
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.TP
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\fB\-\fR\fIsignal\fP
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.TQ
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\fB\-\-signal\fR \fIsignal\fR
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Defines the signal to send to each matched process. Either the numeric or
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the symbolic signal name can be used.
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.RB ( pkill
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only.)
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.TP
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\fB\-c\fR, \fB\-\-count\fR
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Suppress normal output; instead print a count of matching processes. When
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count does not match anything, e.g. returns zero, the command will return
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non-zero value.
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.TP
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\fB\-d\fR, \fB\-\-delimiter\fR \fIdelimiter\fP
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Sets the string used to delimit each process ID in the output (by default a
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newline).
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.RB ( pgrep
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only.)
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.TP
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\fB\-f\fR, \fB\-\-full\fR
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The
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.I pattern
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is normally only matched against the process name. When
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.B \-f
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is set, the full command line is used.
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.TP
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\fB\-g\fR, \fB\-\-pgroup\fR \fIpgrp\fP,...
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Only match processes in the process group IDs listed. Process group 0 is
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translated into
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.BR pgrep 's
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or
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.BR pkill 's
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own process group.
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.TP
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\fB\-G\fR, \fB\-\-group\fR \fIgid\fP,...
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Only match processes whose real group ID is listed. Either the numerical or
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symbolical value may be used.
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.TP
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\fB\-l\fR, \fB\-\-list\-name\fR
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List the process name as well as the process ID.
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.RB ( pgrep
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only.)
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.TP
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\fB\-a\fR, \fB\-\-list\-full\fR
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List the full command line as well as the process ID.
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.RB ( pgrep
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only.)
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.TP
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\fB\-n\fR, \fB\-\-newest\fR
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Select only the newest (most recently started) of the matching processes.
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.TP
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\fB\-o\fR, \fB\-\-oldest\fR
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Select only the oldest (least recently started) of the matching processes.
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.TP
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\fB\-P\fR, \fB\-\-parent\fR \fIppid\fP,...
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Only match processes whose parent process ID is listed.
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.TP
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\fB\-s\fR, \fB\-\-session\fR \fIsid\fP,...
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Only match processes whose process session ID is listed. Session ID 0
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is translated into
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.BR pgrep 's
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or
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.BR pkill 's
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own session ID.
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.TP
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\fB\-t\fR, \fB\-\-terminal\fR \fIterm\fP,...
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Only match processes whose controlling terminal is listed. The terminal name
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should be specified without the "/dev/" prefix.
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.TP
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\fB\-u\fR, \fB\-\-euid\fR \fIeuid\fP,...
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Only match processes whose effective user ID is listed. Either the numerical
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or symbolical value may be used.
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.TP
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\fB\-U\fR, \fB\-\-uid\fR \fIuid\fP,...
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Only match processes whose real user ID is listed. Either the numerical or
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symbolical value may be used.
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.TP
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\fB\-v\fR, \fB\-\-inverse\fR\fR
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Negates the matching. This option is usually used in
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.BR pgrep 's
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context. In
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.BR pkill 's
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context the short option is disabled to avoid accidental usage of the option.
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.TP
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\fB\-x\fR, \fB\-\-exact\fR\fR
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Only match processes whose names (or command line if \-f is specified)
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.B exactly
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match the
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.IR pattern .
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.TP
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\fB\-F\fR, \fB\-\-pidfile\fR \fIfile\fR
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Read
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.IR PID 's
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from file. This option is perhaps more useful for
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.B pkill
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than
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.BR pgrep .
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.TP
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\fB\-L\fR, \fB\-\-logpidfile\fR
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Fail if pidfile (see -F) not locked.
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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Display version information and exit.
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display help and exit.
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.PD
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.SH OPERANDS
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.TP
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.I pattern
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Specifies an Extended Regular Expression for matching against the process
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names or command lines.
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.SH EXAMPLES
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Example 1: Find the process ID of the
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.B named
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daemon:
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.IP
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$ pgrep \-u root named
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.PP
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Example 2: Make
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.B syslog
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reread its configuration file:
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.IP
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$ pkill \-HUP syslogd
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.PP
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Example 3: Give detailed information on all
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.B xterm
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processes:
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.IP
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$ ps \-fp $(pgrep \-d, \-x xterm)
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.PP
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Example 4: Make all
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.B netscape
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processes run nicer:
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.IP
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$ renice +4 $(pgrep netscape)
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.SH "EXIT STATUS"
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.PD 0
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.TP
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0
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One or more processes matched the criteria.
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.TP
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1
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No processes matched.
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.TP
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2
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Syntax error in the command line.
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.TP
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3
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Fatal error: out of memory etc.
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.PD
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.SH NOTES
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The process name used for matching is limited to the 15 characters present in
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the output of /proc/\fIpid\fP/stat. Use the \-f option to match against the
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complete command line, /proc/\fIpid\fP/cmdline.
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.PP
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The running
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.B pgrep
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or
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.B pkill
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process will never report itself as a
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match.
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.SH BUGS
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The options
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.B \-n
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and
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.B \-o
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and
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.B \-v
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can not be combined. Let
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me know if you need to do this.
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.PP
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Defunct processes are reported.
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.SH "SEE ALSO"
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.BR ps (1),
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.BR regex (7),
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.BR signal (7),
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.BR killall (1),
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.BR skill (1),
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.BR kill (1),
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.BR kill (2)
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.SH STANDARDS
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.B pkill
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and
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.B pgrep
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were introduced in Sun's Solaris 7. This implementation is fully compatible.
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.SH AUTHOR
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.UR kjetilho@ifi.uio.no
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Kjetil Torgrim Homme
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.UE
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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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