Shell Scripting (15)

• GitHub - acmesh-official/acme.sh: A pure Unix shell script ACME client for SSL / TLS certificate automation (GitHub) repo
  POSIX shell ACME client issuing and renewing free TLS certs, wildcard and ECDSA, no root needed
  PKI TLS #
• LinuxCommand.org: Learn The Linux Command Line. Write Shell Scripts. (linuxcommand.org) tutorial
  William Shotts' free shell tutorials plus the full text of The Linux Command Line book
  Command Line #
• The GNU Bourne-Again Shell (tiswww.case.edu) tool
  GNU Bash upstream home: POSIX shell implementation, releases, patches and manual, GPLv3
  Command Line Unix Standard #
• BashPitfalls - Greg's Wiki (mywiki.wooledge.org) reference
  catalogue of common bash mistakes - word splitting, globbing, quoting - each shown with the correct form
  Command Line #
• tldr pages (tldr.sh) tool
  community-written simplified man pages: practical examples per command, clients for every platform, free
  Command Line System Administration #
• Shell Command Language (pubs.opengroup.org) reference
  POSIX.1-2024 normative definition of sh: token recognition, word expansion, redirection, compound commands
  Command Line Unix Standard #
• Unix & Linux Stack Exchange (Unix & Linux Stack Exchange) forum
  Voted question-and-answer board where Unix and Linux users work through admin and shell problems
  Command Line System Administration #
• OverTheWire: Bandit (overthewire.org) tutorial
  beginner shell levels played over SSH, each password hidden on the box; free to play
  Command Line Interactive Lab SSH #
• Home - Easy RSA (easy-rsa.readthedocs.io) reference
  POSIX-shell X.509 PKI manager over openssl: multiple CAs, certs for OpenVPN and TLS peers
  PKI TLS VPN #
• The Missing Semester of Your CS Education (Missing Semester) tutorial
  MIT lecture series on shell, editors, git, debugging and profiling that degree courses skip
  Command Line Version Control #
• BashGuide - Greg's Wiki (mywiki.wooledge.org) tutorial
  Beginner bash walkthrough stressing good practice and quoting pitfalls; assumes no prior Unix skill
  Command Line #
• ShellCheck – shell script analysis tool (shellcheck.net) tool
  Catches quoting, portability and logic bugs in bash/sh; paste a script into the browser or run it locally
  Code Quality Command Line #
• GitHub - junegunn/fzf: :cherry_blossom: A command-line fuzzy finder (GitHub) repo
  Single binary with Bash, Zsh, Fish and Vim bindings; also a toolkit for interactive terminal UIs
  Command Line Text Processing #
• explainshell.com - match command-line arguments to their help text (explainshell.com) tool
  Paste a command line and get every flag mapped back to the matching part of its man page
  Command Line Web Application #
• cheat.sh/:firstpage (cheat.sh) tool
  Cheat sheets fetched by curl or the cht.sh client, covering unix commands and 60+ languages
  Command Line #