#!/bin/sh

for i in `seq 1 3`
do
pidfile_="worldd${i}.pid"
if [ -f ${pidfile_} ]; then
pid_=`cat ${pidfile_}`
rm -f ${pidfile_}
echo -n "killing worldd ${i}, pid ${pid_} .."
kill -9 ${pid_}
fi
done

echo "Done."

shell脚本判断是否存在某文件