GREP(1)                           General Commands Manual                          GREP(1)

NAME
       grep — print lines that match patterns

SYNOPSIS
       grep [OPTION...] PATTERNS [FILE...]

DESCRIPTION
       grep  searches  for  PATTERNS in each FILE.  PATTERNS is one or more patterns sepa‐
       rated by newline characters.

       A FILE of “-” stands for standard input.

OPTIONS
       --help    Output a usage message and exit.

       --color=auto
                 Display color on the terminal

REGULAR EXPRESSIONS
       A regular expression is a pattern that describes a set of strings.

       Perl-compatible regular expressions give additional functionality,  and  are  docu‐
       mented in pcresyntax(3)

ENVIRONMENT
       GREP_COLOR=auto
                 Display color on the terminal

SEE ALSO
       pcresyntax(3)

COPYRIGHT
       Copyright 1998-2000, 2002, 2005-2020 Free Software Foundation, Inc.

       This is free software; see the source for copying conditions.
       There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR‐
       POSE.

                                                                                   GREP(1)