Exploring the grep options Post: 302652661

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Top Forums UNIX for Dummies Questions & Answers Exploring the grep options Post 302652661 by SankalpS on Thursday 7th of June 2012 01:13:33 PM

06-07-2012

Registered User

Quote:

Originally Posted by rangarasan

Hi,
Try this,

Code:

grep 'pattern' path/file
awk '/pattern/{t=1;print;}END{if(t!=1){print "pattern not found";}}' path/file

Cheers,
Ranga:-)

Hi Ranga,
Thanks a lot can you also please explain what the second line of command is doing..!! Is there any one line command that will do the task, i dont want to run a script for this..!

SankalpS

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LEARN ABOUT NETBSD

zfgrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

BSD
								 December 28, 2003							       BSD