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What’s the Best Way to Learn POSIX Shell?

📺 https://youtu.be/H1eE1q9IoWc

First of all, I no longer believe you should first learn POSIX shell for the following reasons:

1. shellcheck exists, when I need POSIX I can check
2. bash is the default on most server Linux systems
3. Usually I’m not being forced to do POSIX

PSA: You do NOT need sed and awk and tr as much as you think! (Because even POSIX shell has parameter expansion.)

Related:

• https://www.grymoire.com/Unix/Sh.html
• https://www.shellcheck.net
• https://github.com/dylanaraps/pure-sh-bible
• https://leanpub.com/bash/
• Learning the Linux Command Line by William Shotts
• https://rwx.gg/lang/bash
• https://mywiki.wooledge.org/BashGuide

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