koalaman/shellcheck: ShellCheck, a static analysis tool for shell scripts
"ShellCheck is a GPLv3 tool that gives warnings and suggestions for bash/sh shell scripts:
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ShellCheck – Shell script analyzer
ShellCheck is a static analysis and linting tool for sh/bash scripts. It's mainly focused on handling typical beginner and intermediate level syntax errors and pitfalls where the shell just gives a cryptic error message or strange behavior, but it also reports on a few more advanced issues where corner cases can cause delayed failures.
Rerun by rerun
"Rerun is a simple command runner that turns loose shell scripts into modular automation. Rerun will help you organize your implementation into well defined command interfaces. Collections of management modules can be archived and delivered as a single executable to facilitate team hand offs. Using the "stubbs" module, rerun will even facilitate developing modules using a test-driven development practice."
fresh - Keep your dot files fresh
"fresh is a tool to source shell configuration (aliases, functions, etc) from others into your own configuration files. We also support files such as ackrc and gitconfig. Think of it as Bundler for your dot files."
bpkg/bpkg
"JavaScript has npm, Ruby has Gems, Python has pip and now Shell has bpkg!
bpkg is a lightweight bash package manager. It takes care of fetching the shell scripts, installing them appropriately, setting the execution permission and more.
You can install shell scripts globally (on /usr/local/bin) or use them on a per-project basis (on ./deps/), as a lazy-man "copy and paste"."
peco/peco
"peco can be a great tool to filter stuff like logs, process stats, find files, because unlike grep, you can type as you think and look through the current results."
explainshell.com - match command-line arguments to their help text
"write down a command-line to see the help text that matches each argument"