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Full Discussion: Read file based on condition
Top Forums Shell Programming and Scripting Read file based on condition Post 302105288 by tayyabq8 on Thursday 1st of February 2007 01:50:26 AM
Old 02-01-2007
Quote:
Originally Posted by gopinathsekar
It will work even with out ^
No, it won't work, we need to find lines containing a "B" at the start, so we need to mention it, a "^B" tells grep to look for lines having B as their first character, hope you got the concept.
 

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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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