But.. It doesn't work well. (Because the sequence of line is not arranged.) It is better way to use ' redmine_access_logger' plugin than this #!/bin/bash # Setting LOG_FILE=/redmine-3.3.3/log/production.log #LOG_FILE=mylog.log PIDFILE=/var/run/redmine_info_log.pid # Program Variables OUTPUT_LOGDIR=`dirname ${LOG_FILE}` OPT_DEBUG=0 URI_FILTER_REGEX="(^\"/people/avatar)|(^/attachments/thumbnail/)|(^\"/issues/.*\.xml)" function echo_log() { if [ "$2" != "" ]; then echo "$1" >> $2 else echo "$1" fi } if [ -f $PIDFILE ] then PID=$(cat $PIDFILE) ps -p $PID > /dev/null 2>&1 if [ $? -eq 0 ] then echo "Process already running" exit 1 else ## Process not found assume not running echo $$ > $PIDFILE if [ $? -ne 0 ] then echo "Could not create PID file" exit 1 fi fi else echo $$ > $PIDFILE if [ $? -ne 0 ]