zdiff(1) on Linux
The text 33a253af37cc, as Debian 9 (Stretch) shipped it.
decompress and compare two files line by line
Flags it lists
-
--brief -
--bz2 -
--context -
--expand-tabs -
--force-format -
--format -
--gz -
--help -
--ignore-all-space -
--ignore-blank-lines -
--ignore-case -
--ignore-space-change -
--ignore-tab-expansion -
--initial-tab -
--lz -
--minimal -
--no-rcfile -
--report-identical-files -
--show-c-function -
--text -
--unified -
--version -
--xz -
-B -
-C -
-E -
-M -
-N -
-O -
-T -
-U -
-V -
-a -
-b -
-c -
-d -
-h -
-i -
-p -
-q -
-s -
-t -
-u -
-w