fork和exec在bash [英] fork and exec in bash

问题描述

如何实现fork和exec在bash？

How do I implement fork and exec in bash?

让我们假设脚本

echo "Script starts"

function_to_fork(){
sleep 5
echo "Hello"
}

echo "Script ends"

基本上我想该功能被称为C一样，我们使用fork和exec调用新的进程。

Basically I want that function to be called as new process like in C we use fork and exec calls..

从脚本预期母体脚本将结束，然后在5秒钟后，你好被打印。

From the script it is expected that the parent script will end and then after 5 seconds, "Hello" is printed.

推荐答案

使用的符号，就像你从shell会。

Use the ampersand just like you would from the shell.

#!/usr/bin/bash
function_to_fork() {
   ...
}

function_to_fork &
# ... execution continues in parent process ...

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