Ref Grep V1
Synopsis
grep [OPTIONS] PATTERN [FILE...]
grep [OPTIONS] [-e PATTERN | -f FILE] [FILE...]
Gotchas
- large repetitions can cause memory exhaustion
- must escape
()|-signs - set option flags before the PATTERN
Options
- -P use perl like regex (you can lookahead and lookbehind)
- -i: Ignore casecase
- -x: Force search to match line
Example
grep 'python' *
Backlinks