- append file extension in batch - removing file extension in batch, excute every 2 seconds

daily_use.sh

# append file extension in batch
ls /opt/optimize/store/barStore/*.tmp | sort -z -n | while read fname; do
	echo "Appending : " + $fname;
	mv $fname ${fname}.tmp
done



# removing file extension in batch, excute every 2 seconds
ls /opt/optimize/store/barStore/*.tmp | sort -z -n | while read fname; do
	echo "Removing : " + $fname;
	mv $fname ${fname%.tmp}
	sleep 2s
done


lsof -p $java_pid #每个文件描述符的具体属性  
lsof -p $java_pid | wc -l  #当前Java进程file descriptor table中FD的总量