Add script 'check_mount_count.sh'.
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check_mount_count.sh
Executable file
307
check_mount_count.sh
Executable file
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#!/usr/bin/env bash
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script_name="$(basename $(realpath $0))"
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/${script_name%%.*}.conf"
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LOCK_DIR="/tmp/${script_name%%.*}.LOCK"
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log_file="${LOCK_DIR}/${script_name%%.*}.log"
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#---------------------------------------
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#-----------------------------
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# Base Function(s)
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#-----------------------------
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#---------------------------------------
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usage() {
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[[ -n "$1" ]] && error "$1"
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[[ $terminal ]] && echo -e "
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\033[1mUsage:\033[m
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$(basename $0) <filesystem-patition>
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\033[1mDescription\033[m
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Script checks if 'Mount count' of a given partition exceed 'Maximum mount count' of
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that partition. If 'Mount count' is greater as 'Maximum mount count', a warning is
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printed out.
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\033[1mOptions\033[m
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No Options available
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\033[1mExample:\033[m
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Check mount count of partition /dev/mapper/backup
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$(basename $0) /dev/mapper/backup
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"
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clean_up 1
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}
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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blank_line
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exit $1
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}
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echononl(){
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if $terminal && $LOGGING ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n " $*\\c" 1>&2
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else
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echo -e -n " $*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mFatal\033[m ] $*"
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else
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echo -e " [ Fatal ] $*"
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fi
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echo ""
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if $terminal ; then
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echo -e " \033[1mScript terminated\033[m.."
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else
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echo -e " Script terminated.."
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fi
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clean_up 1
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mError\033[m ] $*"
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else
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echo " [ Error ] $*"
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fi
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echo ""
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}
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warn (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[33m\033[1mWarn\033[m ] $*"
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else
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echo " [ Warn ] $*"
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fi
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echo ""
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}
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info (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mInfo\033[m ] $*"
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else
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echo " [ Info ] $*"
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fi
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echo ""
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fi
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}
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echo_ok() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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else
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if $LOGGING ; then
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echo " [ ok ]"
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fi
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fi
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}
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echo_failed(){
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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else
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if $LOGGING ; then
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echo " [ failed ]"
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fi
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fi
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}
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echo_skipped() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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else
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if $LOGGING ; then
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echo " [ skipped ]"
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fi
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fi
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}
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echo_warning() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[33m\033[1mwarning\033[m ]"
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else
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if $LOGGING ; then
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echo " [ skipped ]"
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fi
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fi
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}
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is_number() {
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return $(test ! -z "${1##*[!0-9]*}" > /dev/null 2>&1);
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# - also possible
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# -
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#[[ ! -z "${1##*[!0-9]*}" ]] && return 0 || return 1
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#return $([[ ! -z "${1##*[!0-9]*}" ]])
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}
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blank_line() {
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if $terminal ; then
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echo ""
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fi
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}
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trim() {
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local var="$*"
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var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
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var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
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echo -n "$var"
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}
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# ----------
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# - Jobhandling
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# ----------
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# - If job already runs, stop execution..
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# -
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if mkdir "$LOCK_DIR" 2> /dev/null ; then
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## - Remove lockdir when the script finishes, or when it receives a signal
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trap "clean_up 1" SIGHUP SIGINT SIGTERM
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else
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datum="$(date +"%d.%m.%Y %H:%M")"
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msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\n Exiting now.."
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echo ""
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echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running."
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echo ""
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echo -e " Exiting now.."
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echo ""
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for _email in ${alert_email_arr[@]} ; do
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echo -e "To:${_email}\n${content_type}\nSubject:Error cronjob `basename $0` -- $datum\n${msg}\n" \
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| sendmail -F "Error `hostname -f`" -f $sender_address $_email
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done
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exit 1
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fi
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#---------------------------------------
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#-----------------------------
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# Check some prerequisites
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#-----------------------------
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#---------------------------------------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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LOGGING=true
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else
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terminal=false
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LOGGING=false
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fi
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if [[ -n "$1" ]] ; then
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part_name=$1
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else
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error "No Partition given!"
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usage
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fi
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#---------------------------------------
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#-----------------------------
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# Check mount count.
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#-----------------------------
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#---------------------------------------
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if $LOGGING ; then
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declare -i _length="${#part_name}"
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echo -e "\n Check mount count of partition $part_name.."
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echo -en " ================================="
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declare -i i=0
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while [[ $i -lt $_length ]] ; do
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echo -n "="
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((i++))
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done
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echo ""
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fi
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blank_line
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echononl "Determin actual mount count of partitin $part_name .."
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declare -i mount_count=$(tune2fs -l $part_name | grep "Mount count" | cut -d ":" -f 2)
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if [[ $? -ne 0 ]]; then
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echo_failed
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fatal "Cannot determin mount count of partitin ${part_name}!"
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else
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if $(is_number $mount_count) ; then
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echo_ok
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else
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echo_failed
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fatal "Cannot determin mount count of partitin ${part_name}!"
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fi
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fi
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echononl "Determin maximal mount count of partitin $part_name .."
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declare -i max_mount_count=$(tune2fs -l $part_name | grep "Maximum mount count" | cut -d ":" -f 2)
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if [[ $? -ne 0 ]]; then
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echo_failed
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fatal "Cannot determin maximal mount count of partitin ${part_name}!"
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else
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if $(is_number $max_mount_count) ; then
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if [[ $max_mount_count -lt 2 ]] ; then
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echo_warning
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fatal "Maximal mount count of partitin ${part_name} is set incorrect (value: $max_mount_count)!"
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else
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echo_ok
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fi
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else
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if [[ $max_mount_count -eq -1 ]] ; then
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echo_warning
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fatal "Maximal mount count of partitin ${part_name} not set (actual value: $max_mount_count)!"
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else
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echo_failed
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fatal "Cannot determin maximl mount count of partitin ${part_name}!"
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fi
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fi
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fi
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blank_line
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if [[ $mount_count -gt max_mount_count ]] ; then
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warn "Mount count (${mount_count}) of partition ${part_name} exceeds Maximal mount count (${max_mount_count})"
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else
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info "Mount count (${mount_count}) of partition ${part_name} is less than Maximal mount count (${max_mount_count})
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\033[1mAll is fine.\033[m"
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fi
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clean_up 0
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