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Full Discussion: How to Grep than scan line below grep pattern
Top Forums Shell Programming and Scripting How to Grep than scan line below grep pattern Post 302859723 by umarsatti on Thursday 3rd of October 2013 03:04:21 PM
Old 10-03-2013
Yes, sorry for the confusion, let me put it in more simple way.

Example:

Code:
20130210132030
A
B
C
Banana
20130210142320
D
E
F
Mango
20130210154634
G
H
I
Apple
20130210163415
J
K
L
Mango
20130210171829
M
N
O
Apple

So my script first grep pattern "20130210" once found, it should scan line below and scan for Apple, if Apple is found it should print. Output would look like below
"20130210154634 Apple"
"20130210171829 Apple"

Apple is printed to its corresponding "20130210" only, which is unique.

But if grep pattern "20130210" once found and it scans lines below and finds "Banana" or "Mango" it should exit and search for other grep pattern "20130210" and scan lines below it, as soon as it finds the first "Apple" it should exit and find other such patterns.

I hope its clear now?

BR/Umar
 

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LEARN ABOUT NETBSD

zegrep

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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