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Top Forums Shell Programming and Scripting Formatting list of IP addresses into a grep command Post 302596685 by lewk on Wednesday 8th of February 2012 03:23:08 AM
Old 02-08-2012
Formatting list of IP addresses into a grep command

Hi

I have an input file with a list of random IP addresses, each on a new line. Below is just an example as I omitted the real IP addresses for obvious reasons.

Input: random_ip.txt

Code:
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1
10.0.0.1

Basically what I would like to do is to take all the IP addresses in the input file and pipe them into an output file eg. zgrep_ip.sh which in essence is a formatted zgrep command from the input file.

Output: zgrep_ip.sh
Code:
zgrep --no-filename -e 10.0.0.1 -e 10.0.0.1  -e 10.0.0.1  -e 10.0.0.1  -e 10.0.0.1  -e 10.0.0.1  *.gz > zgrep.out

I hope it makes sense Smilie
 

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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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