https://omarcrosby.com/tags/terminal/ Recent content in Terminal on Omar Crosby https://omarcrosby.com/images/og.jpg https://omarcrosby.com/images/og.jpg Hugo en-us Tue, 22 Sep 2026 15:05:07 -0400 https://omarcrosby.com/posts/writing-a-custom-zsh-completion-function-end-to-end/ Tue, 22 Sep 2026 15:05:07 -0400 https://omarcrosby.com/posts/writing-a-custom-zsh-completion-function-end-to-end/ A walkthrough of writing a zsh completion function for a small CLI — from an empty file to subcommand dispatch, contextual argument completion with help text, and dynamic completion driven by a command's own output. The one subsystem that makes zsh worth the switch. https://omarcrosby.com/posts/zsh-parameter-expansion-flags-the-bash-users-missing-manual/ Tue, 22 Sep 2026 15:02:01 -0400 https://omarcrosby.com/posts/zsh-parameter-expansion-flags-the-bash-users-missing-manual/ A tour of zsh's parameter expansion flags — the expressive superset of bash's parameter expansion that most switching guides never mention. Case flags, split/join flags, indirect expansion, hash key/value extraction, and the csh-derived path modifiers, with the bash equivalent for each so the delta is concrete. https://omarcrosby.com/posts/zsh-extended-glob-qualifiers-a-language-inside-pathnames/ Tue, 22 Sep 2026 06:43:27 -0400 https://omarcrosby.com/posts/zsh-extended-glob-qualifiers-a-language-inside-pathnames/ A tour of zsh's glob qualifiers — the small sublanguage attached to pathname expansion that filters, sorts, and slices matched files without a pipeline. File-type checks, time and size predicates, ordering, slicing, and the recursive globstar — with the equivalent bash + find one-liners for each so the win is concrete. https://omarcrosby.com/posts/zsh-is-worth-switching-for-two-features-and-one-subsystem/ Tue, 22 Sep 2026 06:40:34 -0400 https://omarcrosby.com/posts/zsh-is-worth-switching-for-two-features-and-one-subsystem/ The case for zsh over bash — and fish, and framework distributions — narrowed to the three parts of the shell that actually earn the switch: extended glob qualifiers, parameter expansion flags, and the completion system. Everything else is bash-plus-plugins.