I am working on some bash scripts that I'd like to work across my Linux and FreeBSD systems.
我正在开发一些bash脚本，我想在我的Linux和FreeBSD系统上使用这些脚本。
Since I mostly work in Linux, I am used to starting my bash scripts with
由于我主要在Linux中工作，所以我习惯于使用bash脚本
#!/bin/bash
But this doesn't work on FreeBSD since bash lives at /usr/local/bin/bash. So on FreeBSD my scripts need to start with
但是这在FreeBSD上不起作用，因为bash位于/usr/local/bin/bash所以在FreeBSD，我的脚本需要开始
#!/usr/local/bin/bash
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.
那么我还可以用什么东西在两个系统中都是可移植的呢?我宁愿不维护两个版本的脚本。
3 个解决方案
#1
16
#!/usr/bin/env bash
should do the trick, provided that bash is on the path somewhere. See here for more details.
应该这样做，前提是bash位于某个路径上。详情请参见这里。
#2
6
Honestly, if you want portability, invoke as /bin/sh and code to POSIX. It's less pretty, but you will run into fewer potential issues if you do.
坦白地说，如果您想要可移植性，请将其调用为/bin/sh和代码到POSIX。它不那么漂亮，但如果你这样做，你会遇到更少的潜在问题。
#3
2
Use #!/bin/sh on both systems if you want to be portable and avoid bashisms entirely.
使用# !如果你想要随身携带并且完全避免bashisms，那么在这两个系统上都可以使用。
#1
16
#!/usr/bin/env bash
should do the trick, provided that bash is on the path somewhere. See here for more details.
应该这样做，前提是bash位于某个路径上。详情请参见这里。
#2
6
Honestly, if you want portability, invoke as /bin/sh and code to POSIX. It's less pretty, but you will run into fewer potential issues if you do.
坦白地说，如果您想要可移植性，请将其调用为/bin/sh和代码到POSIX。它不那么漂亮，但如果你这样做，你会遇到更少的潜在问题。
#3
2
Use #!/bin/sh on both systems if you want to be portable and avoid bashisms entirely.
使用# !如果你想要随身携带并且完全避免bashisms，那么在这两个系统上都可以使用。