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为了保证一个PHP页面在后台运行，写了一个监控脚本，假设程序异常退出，那么可以自动重启。 脚本/usr/local/scripts/receve.sh内容如下：#!/bin/bash#funtion:keep receve.php runningPHP="/usr/local/php5/bin/php"PROGRAM="receve.php"#start dameo$PHP /home/httpd/$PROGRAM >>/usr/local/scripts/phpshell/receve.out &chpid="$!";echo "$chpid" > /usr/local/scripts/phpshell/receve.sidecho "child pid is $chpid"echo "status is $?"while [ 1 ]dowait $chpidexitstatus="$?"echo "child pid=$chpid is gone, $exitstatus" >>/usr/local/scripts/phpshell/receve.php_error.logecho `date` >> /usr/local/scripts/phpshell/receve.php_error.logecho "**************************" >>/usr/local/scripts/phpshell/receve.php_error.logsleep 10$PHP /home/httpd/$PROGRAM >> /usr/local/scripts/phpshell/receve.out &chpid="$!";echo "$chpid" > /usr/local/scripts/phpshell/receve.sidecho "next child pid is $chpid"echo "next status is $?"done另外也需要保证监控脚本正常运行，在每天凌晨自动重启脚本/usr/local/scripts/restart_r.sh，写入crontab： #!/bin/bashecho "" >/tmp/receve_pid.txt/bin/ps ax | /bin/grep "receve.sh" | /bin/grep -v "grep" | /bin/awk '{print $1}' >/tmp/receve_pid.txt /bin/kill -9 `cat /tmp/receve_pid.txt | sort -r` sleep 3 /bin/kill -9 `cat /usr/local/scripts/phpshell/receve.sid | sort -r` rm -rf /usr/local/scripts/phpshell/gold_receve.sid sleep 3 /usr/local/scripts/receve.sh > /dev/null &crontab如下： #restart receve.sh10 00 * * * /usr/local/scripts/restart_r.sh注意：脚本的命名要避免重复，以防把自己给杀了！
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