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NAME
grep, egrep, fgrep - print lines matching a pattern

SYNOPSIS
grep [options] PATTERN [FILE...]
grep [options] [-e PATTERN | -f FILE] [FILE...]

DESCRIPTION
Grep searches the named input FILEs (or standard input if no files are named, or the file name - is given) for lines containing a match to the
given PATTERN. By default, grep prints the matching lines.

In addition, two variant programs egrep and fgrep are available. Egrep is the same as grep -E. Fgrep is the same as grep -F.

OPTIONS
-A NUM, --after-context=NUM
Print NUM lines of trailing context after matching lines. Places a line containing -- between contiguous groups of matches.

-a, --text
Process a binary file as if it were text; this is equivalent to the --binary-files=text option.

-B NUM, --before-context=NUM
Print NUM lines of leading context before matching lines. Places a line containing -- between contiguous groups of matches.

-C NUM, --context=NUM
Print NUM lines of output context. Places a line containing -- between contiguous groups of matches.

-b, --byte-offset
Print the byte offset within the input file before each line of output.

--binary-files=TYPE
If the first few bytes of a file indicate that the file contains binary data, assume that the file is of type TYPE. By default, TYPE is
binary, and grep normally outputs either a one-line message saying that a binary file matches, or no message if there is no match. If TYPE
is without-match, grep assumes that a binary file does not match; this is equivalent to the -I option. If TYPE is text, grep processes a
binary file as if it were text; this is equivalent to the -a option. Warning: grep --binary-files=text might output binary garbage, which
can have nasty side effects if the output is a terminal and if the terminal driver interprets some of it as commands.

--colour[=WHEN], --color[=WHEN]
Surround the matching string with the marker find in GREP_COLOR environment variable. WHEN may be âneverâ, âalwaysâ, or âautoâ

-c, --count
Suppress normal output; instead print a count of matching lines for each input file. With the -v, --invert-match option (see below), count
non-matching lines.

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