Handy mysql log rotation script. For those not
using any chroot environements, comment out both
lines in #chroot section. Set MYSQL_HOME QUERYLOG
SLOWLOG ERRLOG appropiately.

#!/bin/sh
###############################################
# MySQL log rotation
# mjaw@ipartners.pl
###############################################

# chroot
VIRTUAL="/virtual"
VIRTUAL_HOME="${VIRTUAL}/mysql"

# mysql
MYSQL_HOME="${VIRTUAL_HOME}/usr/local/mysql"
DATADIR="${MYSQL_HOME}/var"
LOGDIR="${MYSQL_HOME}/log"
QUERYLOG="${LOGDIR}/querylog"
SLOWLOG="${LOGDIR}/slowlog"
ERRLOG="${LOGDIR}/errlog"

# most universal method for calculating
yesterday's date in YYYYMMDD format
DATE=`/usr/bin/perl -e
"@a=localtime(time-86400);printf('%02d%02d%02d',@a[5]+1900,@a[4]+1,@a[3])"`

PID_FILE=$DATADIR/`/bin/hostname`.pid

if ! [ -s ${PID_FILE} ]; then
echo " Error: pid file not found."
exit 1;
fi

PID=`cat $PID_FILE`

echo -n "Rotating logs: "

if [ -e ${QUERYLOG} ]; then
echo -n "querylog "
/bin/mv ${QUERYLOG} ${QUERYLOG}.${DATE}
fi
if [ -e ${SLOWLOG} ]; then
echo -n "slowlog "
/bin/mv ${SLOWLOG} ${SLOWLOG}.${DATE}
fi
if [ -e ${ERRLOG} ]; then
echo -n "errlog "
/bin/mv ${ERRLOG} ${ERRLOG}.${DATE}
fi

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Mysql log rotation Script

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