grep is a command-line utility for searching plain-text data
grep (GNU grep) 3.5
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and others; see
<https://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.
A command line tool for text file analyis, filtering, splitting and reporting.
Runs under Java (1.5+), supports plugins written in Groovy.
Has nix and win batch files in distributions.