如何在bash脚本中包含nohup? [英] How to include nohup inside a bash script?

问题描述

我有一个名为 mandacalc 的大型脚本，该脚本始终与 nohup 命令一起运行.如果我从命令行以以下方式调用它:

I have a large script called mandacalc which I want to always run with the nohup command. If I call it from the command line as:

nohup mandacalc &

一切迅速进行.但是，如果我尝试在命令中包含 nohup ，那么我不必每次执行时都键入它，就会收到错误消息.

everything runs swiftly. But, if I try to include nohup inside my command, so I don't need to type it everytime I execute it, I get an error message.

到目前为止，我尝试了以下选项:

So far I tried these options:

nohup (
command1
....
commandn
exit 0
)

还有:

nohup bash -c "
command1
....
commandn
exit 0
" # and also with single quotes.

到目前为止，我只收到错误消息，抱怨有关 nohup 命令的实现或脚本中使用的其他引号.

So far I only get error messages complaining about the implementation of the nohup command, or about other quotes used inside the script.

欢呼.

推荐答案

尝试将其放在脚本的开头:

Try putting this at the beginning of your script:

#!/bin/bash

case "$1" in
    -d|--daemon)
        $0 < /dev/null &> /dev/null & disown
        exit 0
        ;;
    *)
        ;;
esac

# do stuff here

如果现在以--daemon作为参数启动脚本，它将重新启动与当前shell分离的脚本.

If you now start your script with --daemon as an argument, it will restart itself detached from your current shell.

您仍然可以通过不使用此选项启动脚本来在前台"运行脚本.

You can still run your script "in the foreground" by starting it without this option.

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