使bash脚本在Linux和FreeBSD之间可移植的正确方法是什么? [英] What is the proper way to make a bash script portable between Linux and FreeBSD?

问题描述

我正在研究一些bash脚本，这些脚本可以在我的Linux和FreeBSD系统上使用.

I am working on some bash scripts that I'd like to work across my Linux and FreeBSD systems.

由于我主要在Linux上工作，所以我习惯于以以下方式启动bash脚本

Since I mostly work in Linux, I am used to starting my bash scripts with

#!/bin/bash

但是这在FreeBSD上不起作用，因为bash位于/usr/local/bin/bash.因此在FreeBSD上，我的脚本需要以

But this doesn't work on FreeBSD since bash lives at /usr/local/bin/bash. So on FreeBSD my scripts need to start with

#!/usr/local/bin/bash

那么我还有其他可以在两个系统之间移植的东西吗?我宁愿不维护脚本的两个版本.

So is there something else I could use that would be portable across both systems? I'd rather not maintain two versions of the scripts.

推荐答案

#!/usr/bin/env bash

如果pash在路径上的某处，则

应该可以解决问题.有关更多详细信息，请参见此处.

should do the trick, provided that bash is on the path somewhere. See here for more details.

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