Add check script for sympas webservice via socket 'wwsympa..fcgi'.
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check_wwsympa_service.sh
Executable file
299
check_wwsympa_service.sh
Executable file
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#!/usr/bin/env bash
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working_dir="$(dirname $(realpath $0))"
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# -------------
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# - Some Variables
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# -------------
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LOCK_DIR="/tmp/$(basename $0).LOCK"
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service_name="wwsympa"
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alert_email_arr="ckubu@oopen.de"
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sender_address="check_${service_name}@$(hostname -f)"
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wwsympa_commands="/usr/local/sympa/bin/wwsympa.fcgi"
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check_string_ps="$wwsympa_commands"
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restart_needed=false
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# -------------
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# - Job is already running?
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# -------------
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# - If job already runs, stop execution..
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# -
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if mkdir "$LOCK_DIR" 2> /dev/null ; then
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## - Remove lockdir when the script finishes, or when it receives a signal
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trap clean_up SIGHUP SIGINT SIGTERM
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else
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datum="$(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 $_email
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done
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exit 1
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fi
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# -------------
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# - Some functions
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# -------------
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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exit $1
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}
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echononl(){
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if $terminal ; 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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echo ""
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echo -e " \033[31m\033[1mScript was interupted\033[m!"
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else
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echo " [ Fatal ]: $*"
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echo ""
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echo " Script was terminated...."
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fi
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echo ""
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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[1mWarning\033[m ]: $*"
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else
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echo "[ Warning ]: $*"
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fi
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echo ""
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}
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info (){
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if $terminal ; then
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echo ""
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echo -e " [ \033[32m\033[1mInfo\033[m ]: $*"
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echo ""
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fi
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}
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echo_done() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mdone\033[m ]"
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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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fi
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}
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echo_skipped() {
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if $terminal && $LOGGING ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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fi
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}
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# -------------
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# - Check some prerequisites
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# -------------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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else
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terminal=false
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fi
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# - Systemd supported ?
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# -
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systemd=$(which systemd)
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systemctl=$(which systemctl)
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systemd_supported=false
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if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then
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systemd_supported=true
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fi
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# - Check How to start/stop service
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# -
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SYSTEMD_UNIT_FILE=""
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SYSY_INIT_SCRIPT=""
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if $systemd_supported ; then
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SYSTEMD_UNIT_FILE="$(systemctl list-unit-files | grep -E "${service_name}[^@]*\.service" | grep "enabled" | cut -d' ' -f1)"
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fi
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if [[ -z "$SYSTEMD_UNIT_FILE" ]]; then
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SYSY_INIT_SCRIPT="$(service --status-all | awk '{print$4}' | grep ${service_name} | head -1)"
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fi
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if [[ -z "$SYSTEMD_UNIT_FILE" ]] && [[ -z "$SYSY_INIT_SCRIPT" ]] ; then
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fatal "Neither an init-script nor a service file for ${service_name} service found!"
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fi
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# -------------
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# - Main Part of Script
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# -------------
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if $terminal ; then
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echo -e "\n Check if ${service_name} service is running.."
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echo -e " ==================================="
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fi
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# - Note:
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# -
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# - first we will check '/usr/local/symba/bin/wwsympa.fcgi'
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# - second we will check '$(realpath "/usr/local/symba/bin/wwsympa.fcgi"'
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# - i.e /usr/local/sympa-6.2.36/bin/wwsympa.fcgi
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# -
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for _command in $wwsympa_commands ; do
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PIDS="$(ps ax | grep -E "${_command}" | grep -v grep | awk '{print$1}')"
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if [[ -z "$PIDS" ]]; then
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_command="$(realpath "${_command}")"
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PIDS="$(ps ax | grep -E "${_command}" | grep -v grep | awk '{print$1}')"
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if [[ -z "$PIDS" ]]; then
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restart_needed=true
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break
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fi
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fi
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done
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if $restart_needed ;then
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error "${service_name} service seems to be down. Try to (re)start .."
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echononl " Stop service '${service_name}' first .."
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if [[ -n "$SYSTEMD_UNIT_FILE" ]] ; then
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systemctl stop $SYSTEMD_UNIT_FILE > /dev/null 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_done
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else
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echo_failed
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fi
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else
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/etc/init.d/$SYSY_INIT_SCRIPT stop > /dev/null 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_done
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else
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echo_failed
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fi
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fi
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sleep 2
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echononl " Start Service '${service_name}' .."
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if [[ -n "$SYSTEMD_UNIT_FILE" ]] ; then
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systemctl start $SYSTEMD_UNIT_FILE > /dev/null 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_done
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else
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echo_failed
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fi
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else
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/etc/init.d/$SYSY_INIT_SCRIPT start > /dev/null 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_done
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else
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echo_failed
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fi
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fi
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declare -i count=0
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restart_sucessfully=false
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while [[ $count -lt 10 ]] && ! $restart_sucessfully ; do
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((count++))
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sleep 1
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PIDS=""
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NEW_PIDS=""
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declare -i count_2=0
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for _command in $sympa_commands ; do
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((count_2++))
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PIDS="$(ps ax | grep -E "${_command}" | grep -v grep | awk '{print$1}')"
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if [[ -z "$PIDS" ]]; then
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continue
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else
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if [[ $count_2 -eq 1 ]] ; then
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NEW_PIDS="$PIDS"
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else
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NEW_PIDS="$NEW_PIDS $PIDS"
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fi
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fi
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done
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restart_sucessfully=true
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break
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done
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if ! $restart_sucessfully ; then
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error "Restarting service '${service_name}' failed."
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else
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info "Service '${service_name}' was restarted and is now up and running.
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The new PIDs are $NEW_PIDS"
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if ! $terminal ; then
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echo ""
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echo "[ Success ]: Service '${service_name}' was restarted and is now up and running."
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echo " The new PIDs are $NEW_PIDS"
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echo ""
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fi
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fi
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else
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info "Service ${service_name} is up and running."
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fi
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clean_up 0
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