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chapter17/fs_mon_LINUX.ksh

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+#!/usr/bin/ksh
+#
+# SCRIPT: fs_mon_LINUX.ksh
+# AUTHOR: Randy Michael
+# DATE: 08-22-2007
+# REV: 1.1.P
+# PURPOSE: This script is used to monitor for full filesystems,
+#     which is defined as "exceeding" the FSMAX value.
+#     A message is displayed for all "full" filesystems.
+#
+# PLATFORM: Linux 
+#
+# REV LIST: 
+#
+# set -n # Uncomment to check syntax without any execution
+# set -x # Uncomment to debug this script
+#
+##### DEFINE FILES AND VARIABLES HERE ####  
+
+WORKFILE="/tmp/df.work" # Holds filesystem data
+>$WORKFILE              # Initialize to empty
+OUTFILE="/tmp/df.outfile" # Output display file
+>$OUTFILE		# Initialize to empty
+THISHOST=`hostname`	# Hostname of this machine
+FSMAX="85"              # Max. FS percentage value
+
+######## START OF MAIN #############
+
+# Get the data of interest by stripping out the rows that
+# are not monitored and keeping columns 1, 5 and 6
+
+df -k | tail +2 | egrep -v '/cdrom' \
+      | awk '{print $1, $5, $6}' > $WORKFILE
+
+# Loop through each line of the file and compare column 2
+
+while read FSDEVICE FSVALUE FSMOUNT
+do
+      FSVALUE=$(echo $FSVALUE | sed s/\%//g) # Remove the % sign
+      if [ $FSVALUE -gt $FSMAX ]
+      then
+          echo "$FSDEVICE mounted on $FSMOUNT is ${FSVALUE}%" \
+                >> $OUTFILE
+      fi
+done < $WORKFILE
+
+if [[ -s $OUTFILE ]]
+then
+      echo "\nFull Filesystem(s) on $THISHOST\n"
+      cat $OUTFILE
+      print
+fi