--- 举例来说,以下这个两个小程式 yes/no 分别会返回0/1(成功/失败): /* yes.c */ void main(void) { exit(0); } /* no.c */ void main(void) { exit(1); } 那麽以下这个"YES"的 shell script 便会显示"YES"。 #!/bin/sh # YES if yes ; then echo "YES"
linuxshell变量测试脚本 If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a file; the shell reads the commands from the file just as it would if you typed them into a terminal....
SHELL1140LINUXSCRIPT40BASH41BASHEXITSCRIPT返回41 LINUX程式设计-11SHELL SCRIPT(BASH)--(8)返回状态EXIT,LINUX程式设计-11SHELL SCRIPT(BASH)--(8)返回状态EXIT,SHELL,11,(,LINUX,SCRIPT(BASH),BASH,EXIT,SCRIPT,返回,) 君,已阅读到文档的结尾了呢~~ ...
When we execute a script, Linux spawns a child process of our current shell session and executesmyscript.shin it.Our shell process will block while waiting for the script child process to exit unlessit is executed in the background.
return: can only`return' from a function or 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...
The invention discloses a processing method for linux shell script parallel execution and timeout automatic exit. The processing method involves a main program and subprograms, the main program is run firstly, the subprograms are started in parallel, and then waiting is kept till all the parallel...
return: can only`return' from a function or sourced script 当前用source或.(点)执行。 return 与 exit的区别: 1、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。而return是返回函数值并退出函数 ...
Linuxshell中的exit命令是一条非常常用的命令,用于结束当前的Shell会话或者退出当前的Shell脚本。它在很多情况下可以帮助我们有效地管理Shell会话和脚本的执行。 首先,exit命令可以用于退出当前的Shell会话。当我们在Shell中工作时,有时可能需要退出当前的Shell会话,返回到上一层的Shell会话或者退出Shell终端。这时,我们可以...
In this tutorial, we’ll outline and discuss how to exit a shell script from a subshell. 2. UsingexitCommand Theexitcommand plays a pivotal role in terminating shell scripts or subshells. However, when invoked within a subshell, it exits only from that particular subshell, not the parent sc...
linuxshellexit命令 Linuxshell中的exit命令是一条非常常用的命令,用于结束当前的Shell会话或者退出当前的Shell脚本。它在很多情况下可以帮助我们有效地管理Shell会话和脚本的执行。 首先,exit命令可以用于退出当前的Shell会话。当我们在Shell中工作时,有时可能需要退出当前的Shell会话,返回到上一层的Shell会话或者退出Shell...