首页How do you run shell commands as foreground and background processes? Give an example for each.

How do you run shell commands as foreground and background processes? Give an example for each.

时间: 2024-05-07 08:21:38 浏览: 79

Python2.x利用commands模块执行Linux shell命令

用Python写运维脚本时，经常需要执行linux shell的命令，Python中的commands模块专门用于调用Linux shell命令，并返回状态和结果，下面是commands模块的3个主要函数： 1. commands.getoutput(‘shell command’) 执行shell命令，返回结果（string类型）复制代码代码如下: >>> commands.getoutput(‘pwd’) ‘/home/oracle’ 2. commands.getstatus(‘file’) 该函数已被python丢弃，不建议使用，它返回 ls -ld file 的结果（St

To run a shell command as a foreground process, simply type the command in the terminal and hit enter. The command will run in the foreground and the terminal will be blocked until the command completes. For example: ``` $ ls -l ``` To run a shell command as a background process, add an ampersand (&) at the end of the command. This will allow you to continue using the terminal while the command runs in the background. For example: ``` $ sleep 10 & ``` This command will run the "sleep 10" command in the background, and return control of the terminal to you immediately. The sleep command will run for 10 seconds in the background before completing.

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