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+---
+title: "Write Posix Shell"
+category: "software"
+abstract: A shell script may be just what you need
+date: 2023-04-05T21:54:48+02:00
+year: 2023
+draft: false
+tags:
+- POSIX
+- shell 
+- scripting
+- bash
+- luke-smith
+- jes-olson
+---
+[Jes Olson](https://j3s.sh/thought/write-posix-shell.html):
+>  when the problem you're solving is small, well defined,
+>  and unlikely to change, consider shell.
+>
+> when the problem you're solving involves linux,
+> text processing, or managing files, consider shell.
+
+This is what [Luke Smith](https://odysee.com/@Luke:7) taught me: a shell script is often enough. Of course, you can use Ruby, Python - heck, even JavaScript. But often, you don't need it, as a simple shell is more than enough.
+
+What FreeBSD experience added to that is portability. I try not to use bashisms anymore (thanks to [shellcheck](https://www.shellcheck.net)), as POSIX is good enough. If it's not, maybe shell is not the best approach for this problem. Portability and lack of dependencies will pay out eventually.