shell脚本监视进程

#!/bin/sh#2014-11-27 15:40:07#by YwdCheckProcess(){        if [ "$1" = ""];        then                return 1        fi    PROCESS_NUM=`ps -w | grep "$1" | grep -v "grep" | wc -l`    if [ $PROCESS_NUM -eq 1 ];    then        return 0    else        return 1    fi    } while [ 1 ] ; do    CheckProcess "/mnt/nand/boa"    CheckQQ_RET=$?    if [ $CheckQQ_RET -eq 1 ];    then     killall -9 boa     exec /mnt/nand/boa -c /etc & #exec /opt/ipnc/QJ28281 &    fi    sleep 10done