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Special Forums UNIX Desktop Questions & Answers grep a specific amount of occurrence Post 302682293 by bakunin on Monday 6th of August 2012 04:40:29 AM
Old 08-06-2012
Quote:
Originally Posted by vagar11
egrep -i '16500' | wc -l
This will count the occurrences of "16500" but not limit the result set to a specific number of them. There is the "-c" switch of grep for that, btw..

Code:
grep <regexp> | head -<number>

Will give you the first <number> of hits, while

Code:
grep <regexp> | tail -<number>

will give you the last <number> of hits.

I hope this helps.

bakunin
 

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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
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