shell脚本超时控制

来源：互联网发布：dnf老是网络中断编辑：程序博客网时间：2024/05/20 10:21

写脚本的时候，经常需要用到超时控制。看《shell专家编程》时看到一个好例：修改了一下，

1.超过timeout时间还没执行完，则kill进程，发邮件告警:

set -xmailSend(){        mailContent="xxxx Web response time over 5 seconds"        echo $mailContent | mail -s "xxxxxx Web TimeOut" xxxxx@xxx.cion}timeout(){        waitfor=3        command=$*        $command &        commandpid=$!        ( sleep $waitfor ; kill -9 $commandpid  > /dev/null 2>&1 && mailSend ) &        watchdog=$!        sleeppid=$PPID        wait $commandpid > /dev/null 2>&1        kill $sleeppid > /dev/null 2>&1}#测试的函数test123(){        sleep 20}timeout test123

2.超过timeout时间还没执行完，只发邮件告警，程序正常执行:

mailSend(){        mailContent="xxxxe Web response time over 5 seconds,Please have a check !"        echo $mailContent | mail -s "xxxxx WEB response time over 5 senconds" $mailTo}timeout(){        waitfor=6        command=$*        $command &        commandpid=$!        ( sleep $waitfor ;  mailSend ) &        watchdog=$!        sleeppid=$PPID        wait $commandpid > /dev/null 2>&1        kill  -9 $watchdog > /dev/null 2>&1        kill $sleeppid > /dev/null 2>&1}