shell 查找目录下最新和最旧文件[时间戳]

娇w兴

#/bin/bash　　
declare -a files=(`ls -l | awk '/mysql-bin/ {print $9}'`)
　　
min=${files[0]}
　　
max=${files[1]}
　　
if [ "$min" = "$max" ];then
　　echo `date +%Y%m%d-%T`  'newlog && oldlog is null'>>logfile.txt
　　exit
　　
fi
　　
for i in `ls -l|awk '/mysql-bin/ {print $9}'`; do
　　if [ "$max" = "" ];then
　　echo `date +%Y%m%d-%T`  'newlog && oldlog is null='"$min">>logfile.txt
　　exit
　　fi
　　if [ $i -ot $max ];then
　　max=$i
　　elif [ $min -ot $i ];then
　　min=$i
　　fi
　　
done
　　
echo `date +%Y%m%d-%T`  oldlog="$max" newlog="$min" >>logfile.txt