break exits from a for, select, while, or until loop in a shell script. If number is given, break exits from the given number of enclosing loops. The default value of number is 1. break is a special built-in shell command. In the tcsh shell, break causes execution to resume after ...
shell scripts Thread ToolsSearch this Thread #1 01-23-2007 gefa Registered User 94,0 exit from script I have a shell script with options, one of which should exit the system (logout), however when I select this option it drops down to shell, is there a command other than exit that wi...
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9.Shell Programming and Scripting Executing 'exit' command from shell script Hi, I am writing shell script to automate few use cases for CLI interface. We have CLI interface which has bunch of commands. I am trying to execute one of the commands 'exit' as part of automation to exit from...
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Linux 程式设计(11.ShellScript(bash))((8)返回状态 Exit)在继续之前,我们必须切入另一个主题,即返回状态值-退出状态因 为如果/同时/直到都涉及到使用退出状态来控制程序流的问题。 -退出后的数字是返回状态值-退出状态。 返回状态值,这可以大大增加使用外壳脚本组合程序的可能性。小 程序可以通过外壳脚本完成复杂...
dir=/root/shell grep -e'^ .*cp '-e'^cp'$dir/* >Cp_Check.txt if[ ! -s Cp_Check.txt ] then return0 fi 直接执行脚本是会报错的 return: can only`return' from a function or sourced script 当前用source或.(点)执行。 return 与 exit的区别: ...
Closed-source, proprietary applications (Shell scripts make the source code available to anyone who wants to look at it.) How to Exit from a Script There are some cases, such as we have written a script to test some code and we need to exit the script in case the code fails, then we...
return:can only`return' from afunctionor sourced script 但是如果使用 . 或 souce的方式被包含到父Shell中,则可以正常运行。 3.exit与return的区别 ( 1)作用不同。exit用于在程序运行的过程中随时结束程序,exit的参数是返回给OS的。exit是结束一个进程,它将删除进程使用的内存空间,同时把错误信息返回父进程。
If you have used the Unix/Linux shell, then you might know each program when exits provides an exit code that can be found in the$?variable. You can provide this exit value from a perl script as well by passing a number to theexit()call. ...