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Top Forums Shell Programming and Scripting Extracting a certain number with grep command Post 302575819 by rpf on Wednesday 23rd of November 2011 01:50:38 AM
Old 11-23-2011
Extracting a certain number with grep command

Hello Friends,

when I type grep '275' myfile.txt

it gives me all the lines including 275 but it also gives others such as 0.8827588 or 1127507.

I only want the lines including 275. How can I extract only 275 without other numbers including 275.

thanks
 

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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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