www.3112.net > shEll whilE BrEAk

shEll whilE BrEAk

bash shell script (bash脚本)中,break是退出一层循环,break 2是退出2层循环(当有相互嵌套时),.... break: break [n] Exit for, while, or until loops. Exit a FOR, WHILE or UNTIL loop. If N is specified, break N enclosing loops. Exi...

bash shell script (bash脚本)中,break是退出一层循环,break 2是退出2层循环(当有相互嵌套时),....break: break [n] Exit for, while, or until loops. Exit a FOR, WHILE or UNTIL loop. If N is specified, break N enclosing loops. Exit...

do语句要提前一行。 while循环用于不断执行一系列命令,也用于从输入文件中读取数据;命令通常为测试条件。其格式为:while command do Statement(s) to be executed if command is true done 命令执行完毕,控制返回循环顶部,从头开始直至测试...

bash shell script (bash脚本)中,break是退出一层循环,break 2是退出2层循环(当有相互嵌套时),....break: break [n] Exit for, while, or until loops. Exit a FOR, WHILE or UNTIL loop. If N is specified, break N enclosing loops. Exit.

因为使用了管道的原因,改成下面这样就可以了 a=0 while read line do a=$(($a+1)) echo "inter:"$a done < b.sh echo "outer:"$a

break 命令导致跳出当次循环 比方说下面这段代码打印从 0 到 20 的数字 遇到 3 和 11 跳出循环不打印往后执行: 运行效果: exit 命令中止全部代码的运行 比方说把上面代码里面的 continue 改成 exit 运行效果: 运行到 3 就结束全部代码了

如下,以create.log问日志文件,BUILD SUCCESSFUL为关键字 #!/bin/bash num=1 while [ $num -le 10 ] do echo $num CHECK_RESULT=`cat /app/aideploy/deploy_ncrm_fb/bin/log/create.log | grep 'BUILD SUCCESSFUL' | wc -l` echo "The check re...

使用trap和kill退出整个脚本 cat >test.sh

break 语句可以结束while,for,until或select等结构的执行,即从结构中跳出,并往后继续执行。 exit 直接退出整个脚本,后面的代码不再执行。

bash shell script (bash脚本)中,break是退出一层循环,break 2是退出2层循环(当有相互嵌套时),.... break: break [n] Exit for, while, or until loops. Exit a FOR, WHILE or UNTIL loop. If N is specified, break N enclosing loops. Exi...

网站地图

All rights reserved Powered by www.3112.net

copyright ©right 2010-2021。
www.3112.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com