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Review of category "system"

plugins/user/membyuser

@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+# Plugin to monitor Memory usage inspired by cpubyuser 
+# 
+# 2012-05-23 Sebastien Campion
+
+LU=`ps auh | cut -d' ' -f 1  | sort -u`
+USERS=`echo $LU`
+
+if [ "$1" = "autoconf" ]; then
+	if [ -n "$USERS" ]; then
+		echo "yes"
+	else
+		echo "\$USERS not defined."
+	fi
+	exit
+fi
+
+if [ "$1" = "config" ]; then
+	echo "graph_args --base 1000 -r --lower-limit 0"
+	echo "graph_title Memory usage, by user"
+	echo "graph_category memory"
+	echo "graph_info This graph shows memory usage, for monitored users."
+	echo "graph_vlabel KB"
+	echo "graph_scale no"
+	echo "graph_period second"
+	_USERS=${USERS//[-.]/_}
+	echo "graph_order $_USERS others"
+	FIRSTUSER=1;
+	for USER in $USERS "others"; do
+		_USER=${USER//[-.]/_}
+		echo "${_USER}.label $USER"
+		echo "${_USER}.info Memory used by user $USER"
+		echo "${_USER}.type GAUGE"
+		if [ $FIRSTUSER -eq 1 ]; then
+			echo "${_USER}.draw AREA"
+			FIRSTUSER=0
+		else
+			echo "${_USER}.draw STACK"
+		fi
+	done
+	exit
+fi
+
+ps -e -o "%z%U" | \
+	awk -v USERS="$USERS" '
+		{ if ($2 != "USER") MEM_USER[$2]+=$1 }
+		END {
+			others_sum = 0
+			for (user in MEM_USER) {
+				m = match(USERS,user)
+				if (m != 0) {
+					_user=user
+					gsub(/[-.]/,"_", _user);
+					print _user".value", MEM_USER[user]
+				} else
+					others_sum += MEM_USER[user]
+			}
+		print "others.value", others_sum;
+	}'

plugins/user/system_users

@@ -0,0 +1,50 @@
+#!/bin/sh
+# Plugin to get the number of logged in users
+# Written by Henrik Andersén 2010 <code@henrikandersen.se>
+#
+# Copyright (c) 2010, Henrik Andersen
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#    * Redistributions of source code must retain the above copyright
+#      notice, this list of conditions and the following disclaimer.
+#    * Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions and the following disclaimer in the
+#      documentation and/or other materials provided with the distribution.
+#    * Neither the name of the copyright holder nor the
+#      names of its contributors may be used to endorse or promote products
+#      derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL Henrik Andersen BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+case $1 in
+   config)
+        cat <<'EOM'
+graph_args --base 1000 -l 0
+graph_scale no
+graph_category system
+graph_info The number of users currently logged into the system
+graph_title Logged in users
+graph_vlabel users
+user.info Number of users currently logged in
+user.label users
+user.min 0
+EOM
+        exit 0;;
+esac
+
+count=$(/usr/bin/who -q ) 
+printf "user.value %i\n" ${count#*=}
+
+exit 0