#!/bin/bash
keep=5 # Number of Files to keep
i=0
for FILE in `ls mysql-bin.*`;
do
    echo -n "Checking $FILE... "
    if [[ "$i" -le $keep ]]
    then
        echo "kept."
    else
        rm -f $FILE;
        echo "deleted."
    fi
    i=`expr $i + 1`
done;