#!/usr/bin/ksh
WORKFILE="/tmp/df.work" # Holds filesystem data>$WORKFILE # Initialize to emptyOUTFILE="/tmp/df.outfile" # Output display file>$OUTFILE # Initialize to emptyEXCEPTIONS="/usr/local/bin/exceptions" # Override data fileDATA_EXCEPTIONS="/tmp/dfdata.out" # Exceptions file w/o # rowsEXCEPT_FILE="N" # Assume no $EXCEPTIONS FILETHISHOST=`hostname` # Hostname of this machine
MIN_MB_FREE="100MB" # Min. MB of Free FS SpaceMAX_PERCENT="85%" # Max. FS percentage valueFSTRIGGER="1000MB" # Trigger to switch from % Used to MB Free
# Both of these variables need to multiplied by 1024 blocks(( MIN_MB_FREE = $(echo $MIN_MB_FREE | sed s/MB//g) * 1024 ))(( FSTRIGGER = $(echo $FSTRIGGER | sed s/MB//g) * 1024 ))
function get_OS_info{typeset -u OS OS=`uname` print $OS }
function check_exceptions{
while read FSNAME FSLIMITdo IN_FILE="N"
echo $FSNAME | grep ':' >/dev/null / && FSNAME=$(echo $FSNAME | cut -d ':' -f2)
if [[ ! -z "$FSLIMIT" && "$FSLIMIT" != '' ]] then if [[ $FSNAME = $FSMOUNT ]] # Found it! then # Check for "MB" Characters...Set IN_FILE=MB echo $FSLIMIT | grep MB >/dev/null && IN_FILE="MB" / && (( FSLIMIT = $(echo $FSLIMIT / | sed s/MB//g) * 1024 )) >/dev/null 2>&1 # check for "%" Character...Set IN_FILE=PC, for % echo $FSLIMIT | grep "%" >/dev/null && IN_FILE="PC" / && FSLIMIT=$(echo $FSLIMIT | sed s//%//g) / >/dev/null 2>&1 case $IN_FILE in MB) # Up-case the characters, if they exist FSLIMIT=$(echo $FSLIMIT | tr '[a-z]' '[A-Z]') # Get rid of the "MB" if it exists FSLIMIT=$(echo $FSLIMIT | sed s/MB//g) # Test for blank and null values if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]] then # Test for a valid filesystem "MB" limit if (( $FSLIMIT >= 0 && $FSLIMIT < $FSSIZE )) then if (( $FSMB_FREE < $FSLIMIT )) then return 1 # Found out of limit using MB Free method else return 3 # Found OK fi else (( FSLIMIT = $FSLIMIT / 1024 )) # To get a good display value (( FSSIZE = $FSSIZE / 1024 )) # To get a good dispaly value echo "/nERROR: Invalid filesystem MINIMUM MB FREE specified" echo "for $FSMOUNT - ${FSLIMIT}MB -- Current size is ${FSSIZE}MB." echo "Exceptions file value must be less than or equal to the" echo "size of the filesystem measured Megabytes/n" fi else echo "/nERROR: Null value specified in excepeptions file" echo " for the $FSMOUNT mount point./n" fi ;; PC) # Strip out the % sign if it exists PC_USED=$(echo $PC_USED | sed s//%//g) # Test for blank and null values if [[ ! -z $FSLIMIT && $FSLIMIT != '' ]] then # Test for a valid percentage, i.e. 0-100 if (( $FSLIMIT >= 0 && $FSLIMIT <= 100 )) then if (( $PC_USED > $FSLIMIT )) then return 2 # Found exceeded by % Used method else return 3 # Found OK fi else echo "/nERROR: Invalid percentage for $FSMOUNT - $FSLIMIT" echo " Exceptions file values must be" echo " between 0 and 100%/n" fi else echo "/nERROR: Null value specified in excepeptions file" echo " for the $FSMOUNT mount point./n" fi ;; N) # Method Not Specified - Use Script Defaults if (( $FSSIZE >= $FSTRIGGER )) then # This is a "large" filesystem if (( $FSMB_FREE < $MIN_MB_FREE )) then return 1 # Found out of limit using MB Free method else return 3 # Found OK fi else # This is a standard filesystem PC_USED=$(echo $PC_USED | sed s//%//g) # Remove the % FSLIMIT=$(echo $FSLIMIT | sed s//%//g) # Remove the % if (( $PC_USED > $FSLIMIT )) then return 2 # Found exceeded by % Used method else return 3 # Found OK fi fi ;; esac fi fidone < $DATA_EXCEPTIONS # Feed the loop from the bottom!!!
return 4 # Not found in $EXCEPTIONS file}
####################################
function display_output{if [[ -s $OUTFILE ]]then echo "/nFull Filesystem(s) on $THISHOST/n" cat $OUTFILE printfi}
####################################
function load_EXCEPTIONS_data{# Ingore any line that begins with a pound sign, ## and omit all blank lines
cat $EXCEPTIONS | grep -v "^#" | sed /^$/d > $DATA_EXCEPTIONS}
####################################
function load_AIX_FS_data{
df -k | tail +2 | egrep -v '/dev/cd[0-9]|/proc' / | awk '{print $1, $2, $3, $4, $7}' > $WORKFILE}
####################################
function load_HP_UX_FS_data{
bdf | tail +2 | egrep -v '/cdrom' / | awk '{print $1, $2, $4, $5, $6}' > $WORKFILE}
####################################
function load_LINUX_FS_data{
df -k | tail +2 | egrep -v '/cdrom'/ | awk '{print $1, $2, $4, $5, $6}' > $WORKFILE}
####################################
function load_Solaris_FS_data{
df -k | tail +2 | egrep -v '/dev/fd|/etc/mnttab|/proc'/ | awk '{print $1, $2, $4, $5, $6}' > $WORKFILE}
############################################# START OF MAIN ################################################
# THIS_OS=`get_OS_info` # Execute the function
# case $THIS_OS incase $(get_OS_info) in AIX) # Load filesystem data for AIX load_AIX_FS_data ;; HP-UX) # Load filesystem data for HP-UX load_HP_UX_FS_data ;; LINUX) # Load filesystem data for Linux load_LINUX_FS_data ;; SUNOS) # Load filesystem data for Solaris load_Solaris_FS_data ;; *) # Unsupported in script echo "/nUnsupported Operating System for this Script...EXITING/n" exit 1esac
# Do we have a non-zero size $EXCEPTIONS file?
if [[ -s $EXCEPTIONS ]]then # Found a non-empty $EXCEPTIONS file
load_EXCEPTIONS_data EXCEP_FILE="Y"fi
while read FSDEVICE FSSIZE FSMB_FREE PC_USED FSMOUNTdo if [[ $EXCEP_FILE = "Y" ]] then check_exceptions CE_RC="$?" # Check Exceptions Return Code (CE_RC)
case $CE_RC in 1) # Found exceeded in exceptions file by MB Method (( FS_FREE_OUT = $FSMB_FREE / 1000 )) echo "$FSDEVICE mounted on $FSMOUNT has ${FS_FREE_OUT}MB Free" / >> $OUTFILE ;; 2) # Found exceeded in exceptions file by %Used method echo "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" / >> $OUTFILE ;; 3) # Found OK in exceptions file : # NO-OP Do Nothing ;;
4) # Not found in exceptions file - Use Default Triggers if (( $FSSIZE >= $FSTRIGGER )) then # This is a "large" filesystem FSMB_FREE=$(echo $FSMB_FREE | sed s/MB//g) # Remove the "MB" if (( $FSMB_FREE < $MIN_MB_FREE )) then (( FS_FREE_OUT = $FSMB_FREE / 1000 )) echo "$FSDEVICE mounted on $FSMOUNT has ${FS_FREE_OUT}MB Free" / >> $OUTFILE fi else # This is a standard filesystem PC_USED=$(echo $PC_USED | sed s//%//g) MAX_PERCENT=$(echo $MAX_PERCENT | sed s//%//g) if (( $PC_USED > $MAX_PERCENT )) then echo "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" / >> $OUTFILE fi fi ;; esac
else # NO $EXECPTIONS FILE USE DEFAULT TRIGGER VALUES
if (( $FSSIZE >= $FSTRIGGER )) then # This is a "large" filesystem - Use MB Free Method FSMB_FREE=$(echo $FSMB_FREE | sed s/MB//g) # Remove the "MB" if (( $FSMB_FREE < $MIN_MB_FREE )) then (( FS_FREE_OUT = $FSMB_FREE / 1000 )) echo "$FSDEVICE mounted on $FSMOUNT has ${FS_FREE_OUT}MB Free" / >> $OUTFILE fi else # This is a standard filesystem - Use % Used Method PC_USED=$(echo $PC_USED | sed s//%//g) MAX_PERCENT=$(echo $MAX_PERCENT | sed s//%//g) if (( $PC_USED > $MAX_PERCENT )) then echo "$FSDEVICE mount on $FSMOUNT is ${PC_USED}%" / >> $OUTFILE fi fi fidone < $WORKFILE
display_output
# End of Script
