/usr/share/munin/plugins/multips is in munin-node 1.4.6-3ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #!/bin/sh
# -*- sh -*-
: <<=cut
=head1 NAME
multips - Munin plugin to monitor number of processes. Which processes
are configured in client-conf.d
=head1 APPLICABLE SYSTEMS
Any system with a pgrep, /usr/ucb/ps or other UCB compatible ps command.
=head1 CONFIGURATION
There is no default configuration.  This is an example:
  [multips]
     env.names pop3d imapd sslwrap
     env.regex_imapd ^[0-9]* imapd:
     env.regex_pop3d ^[0-9]* pop3d:
The regex parts are not needed if the name given in "names" can be
used to grep with directly.
=head1 INTERPRETATION
This plugin simply counts the total number of processes matching the
configured regular expressions.  The regular expressions are
interpreted by "grep" (and not egrep or perl).
=head1 MAGIC MARKERS
  #%# family=manual
  #%# capabilities=autoconf
=head1 VERSION
  $Id: multips.in 1966 2009-04-01 12:24:27Z kjellm $
=head1 BUGS
None known
=head1 AUTHOR
Unknown
=head1 LICENSE
GPLv2
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
if [ "$1" = "autoconf" ]; then
	echo yes
	exit 0
fi
if [ -z "$names" ]; then
  echo "Configuration required"
  exit 1
fi
if [ "$1" = "config" ]; then
	echo graph_title Number of selected processes
	echo 'graph_category processes'
	echo 'graph_args --base 1000 --vertical-label processes -l 0'
	for name in $names; do
	    	fieldname=$(clean_fieldname $name)
		eval REGEX='"${regex_'$name'-\<'$name'\>}"'
		echo "$fieldname.label $name"
		echo "$fieldname.draw LINE2"
		echo "$fieldname.info Processes matching this regular expression: /$REGEX/"
		print_warning "$fieldname"
		print_critical "$fieldname"
	done
	exit 0
fi
for name in $names; do
        fieldname=$(clean_fieldname $name)
	printf "$fieldname.value "
	eval REGEX='"${regex_'$name'-\<'$name'\>}"'
	PGREP=$(which pgrep)
	if [ -n "$PGREP" -a -x "$PGREP" ]; then
		$PGREP -f -l "$name" | grep "$REGEX" | wc -l
	elif [ -x /usr/ucb/ps ]; then
		# Solaris without pgrep. How old is that?
		/usr/ucb/ps auxwww | grep "$REGEX" | grep -v grep | wc -l
	else
		ps auxwww | grep "$REGEX" | grep -v grep | wc -l
	fi
done
 |