tag

#regex

2 posts

Shell & TerminalDeep Dive October 4, 2026 8 min read

Fish string: Match, Replace, Escape, and Preserve Text Boundaries

Use Fish's string builtin with deliberate glob or regex modes, literal replacement, stream boundaries, and output semantics that scripts can test.

#fish#strings#regex

Shell & TerminalDeep Dive October 3, 2026 8 min read

Use Bash's POSIX extended regular-expression operator, capture groups, quoting rules, and explicit no-match versus invalid-pattern handling.

#bash#shell#regex