# bzegrep > Find extended regular expression patterns in `bzip2` compressed files using `egrep`. > More information: . - Search for extended regular expressions (supporting `?`, `+`, `{}`, `()` and `|`) in a compressed file (case-sensitive): `bzegrep "{{search_pattern}}" {{path/to/file}}` - Search for extended regular expressions (supporting `?`, `+`, `{}`, `()` and `|`) in a compressed file (case-insensitive): `bzegrep --ignore-case "{{search_pattern}}" {{path/to/file}}` - Search for lines that do not match a pattern: `bzegrep --invert-match "{{search_pattern}}" {{path/to/file}}` - Print file name and line number for each match: `bzegrep --with-filename --line-number "{{search_pattern}}" {{path/to/file}}` - Search for lines matching a pattern, printing only the matched text: `bzegrep --only-matching "{{search_pattern}}" {{path/to/file}}` - Recursively search files in a `bzip2` compressed `tar` archive for a pattern: `bzegrep --recursive "{{search_pattern}}" {{path/to/file}}`