zgrep(1) on Linux
The text aa925f36ea4e, as Debian 7 (Wheezy) shipped it.
search compressed files for a regular expression
Flags it lists
-
--after-context -
--before-context -
--byte-offset -
--context -
--count -
--extended-regexp -
--file -
--files-with-matches -
--files-without-match -
--fixed-strings -
--help -
--ignore-case -
--invert-match -
--line-number -
--line-regexp -
--max-count -
--no-filename -
--no-messages -
--only-matching -
--quiet -
--recursive -
--regexp -
--text -
--verbose -
--version -
--with-filename -
--word-regexp -
-A -
-B -
-C -
-E -
-F -
-H -
-I -
-L -
-V -
-a -
-b -
-c -
-e -
-f -
-h -
-i -
-l -
-m -
-n -
-o -
-q -
-r -
-s -
-v -
-w -
-x