git-grep(1)

Look for specified patterns in the working tree files, blobs registered in the index file, or given tree objects.

--cached: Instead of searching in the working tree files, check the blobs registered in the index file.
-a | --text: Process binary files as if they were text.
-i | --ignore-case: Ignore case differences between the patterns and the files.
-w | --word-regexp: Match the pattern only at word boundary (either begin at the beginning of a line, or preceded by a non-word character; end at the end of a line or followed by a non-word character).
-v | --invert-match: Select non-matching lines.
-E | --extended-regexp | -G | --basic-regexp: Use POSIX extended/basic regexp for patterns. Default is to use basic regexp.
-n: Prefix the line number to matching lines.
-l | --files-with-matches | -L | --files-without-match: Instead of showing every matched line, show only the names of files that contain (or do not contain) matches.
-c | --count: Instead of showing every matched line, show the number of lines that match.
-[ABC] <context>: Show context trailing (A — after), or leading (B — before), or both (C — context) lines, and place a line containing -- between contiguous groups of matches.
-f <file>: Read patterns from <file>, one per line.
<tree>…: Search blobs in the trees for specified patterns.
--: Signals the end of options; the rest of the parameters are <path> limiters.

Originally written by Linus Torvalds <torvalds@osdl.org>, later revamped by Junio C Hamano.

Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.

Part of the git(7) suite

git-grep(1) Manual Page