Simple script that collects some logs that can help in debugging server issues

debug_record.sh

#!/bin/bash
# output folder
OUT="/var/log/debug-logs"
# date format
DATE="date +%Y-%m-%d_%H:%M:%S"

# set the log file to "" and no logs will be recorded for that
APACHE_LOG="apache_status.log"
TOP_LOG="top_status.log"
PS_LOG="ps_status.log"
IOTOP_LOG="iotop_status.log"
MYSQL_LOG="mysql_status.log"

APACHE="elinks -dump http://localhost/server-status"
TOP="top -b -n1 -M | head -40"
PS="ps auxf | head -1; ps auxf --sort pcpu | tail -40"
IOTOP="iotop -b -n1 -ko | grep -v 'K/s -[0-9]\|% -[0-9]' | head -20 "
MYSQLCMD="mysql --table -u query_monitor -pmonitorpassword -e 'show processlist;' | grep -v 'processlist\|Sleep'"

function log_header() {
    LOG=$1
    echo >> $LOG
    echo >> $LOG
    date "+%Y-%m-%d %H:%M:%S ================================================================================" >> $LOG
    echo >> $LOG
}
function log_footer() {
    LOG=$1
    echo >> $LOG
    echo "====================================================================================================" >> $LOG
}

if [ ! -d $OUT ]; then
    echo "Destination folder is missing"
    exit 1
fi

if [ ! -z "$APACHE_LOG" ]; then
    log_header $OUT/$APACHE_LOG
    eval $APACHE >> $OUT/$APACHE_LOG
    log_footer $OUT/$APACHE_LOG
fi

if [ ! -z "$TOP_LOG" ]; then
    log_header $OUT/$TOP_LOG
    eval $TOP >> $OUT/$TOP_LOG
    log_footer $OUT/$TOP_LOG
fi

if [ ! -z "$PS_LOG" ]; then
    log_header $OUT/$PS_LOG
    eval $PS >> $OUT/$PS_LOG
    log_footer $OUT/$PS_LOG
fi

if [ ! -z "$IOTOP_LOG" ]; then
    log_header $OUT/$IOTOP_LOG
    eval $IOTOP >> $OUT/$IOTOP_LOG
    log_footer $OUT/$IOTOP_LOG
fi

if [ ! -z "$MYSQL_LOG" ]; then
    log_header $OUT/$MYSQL_LOG
    eval $MYSQLCMD >> $OUT/$MYSQL_LOG
    log_footer $OUT/$MYSQL_LOG
fi