Bash Cheatsheet
NewBash scripting reference — variables, arrays, loops, functions, and redirection.
Frequently Asked Questions
Why do some cards show very short snippets like ${var:-default} instead of a full script?
The default view is intentionally compact. If you want fuller examples, use 'Show full syntax' or the 'Copy example' button on each card.
Can I copy a runnable example instead of just the shorthand syntax?
Yes. Each card has separate copy buttons for syntax and example. The example button is the better choice when the full loop, function, or case block matters.
Is this page Bash-specific, or are these generic shell snippets?
It's Bash-focused. The data includes Bash-only features such as [[ ]], arrays, declare -A, process substitution, and parameter expansion forms that aren't portable to every POSIX shell.
Does it cover more than variables and loops?
Yes. The categories also include arrays, conditionals, functions, I/O and redirection, process control, and one-liners. There are entries for things like getopts, trap, strict mode, here-docs, and xargs pipelines.
Will it run the commands or check them against my shell?
No. This component is just a searchable, copyable cheatsheet. It doesn't execute or lint Bash code.