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Full Discussion: Pattern matching in Perl
Top Forums Shell Programming and Scripting Pattern matching in Perl Post 302664633 by X-Or on Saturday 30th of June 2012 05:18:07 AM
Old 06-30-2012
Quote:
Originally Posted by itkamaraj
Code:
perl -lane 'print $_ if $_=~/192.168.[02]/' filename.txt

Thanks itkamaraj,

To be honest i'm not very familiar with Perl in command line, I intended to use grep.
And i'm searching for something very generic, because I won't to read first numbers each time.

Something like this:
Code:
grep -P '\d+\.\d+\.\d+' filename.txt

My question is there a simpler pattern for this ?
Is possible to repeat some part of the pattern, for example: '\d+' x3 and '\.' x2
 

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tgt-setup-lun(8)					      System Manager's Manual						  tgt-setup-lun(8)

NAME
tgt-setup-lun - creates a target, adds a device to the target and defines initiators that can connect to the target SYNOPSIS
tgt-setup-lun -d device -n target_name [initiator_IP1 initiator_IP2 ...] [-h] DESCRIPTION
Starts tgtd if necessary and creates a target according to the supplied target_name. The format of the target name is as follows: iqn.2001-04.com.<hostname>-<target_name> The target name must be unique. The script then adds the requested device to the target. If specific IP addresses are defined, it adds them to the list of allowed initia- tors for that target. If no IP addresses is defined, it defines that the target accepts any initiator. EXAMPLES
Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81: tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 Create a target that uses /dev/sdb1 and allows connections only from 192.168.10.81 and 192.168.10.82: tgt-setup-lun -d /dev/sdb1 -n my_target 192.168.10.81 192.168.10.82 Create a target that uses /dev/sdb1 and allows connections from any initiator: tgt-setup-lun -d /dev/sdb1 -n my_target Display help: tgt-setup-lun -h AUTHOR
Written by Erez Zilber REPORTING BUGS
Report bugs to <erezz@voltaire.com>. COPYRIGHT
Copyright (C) Voltaire Ltd. 2008. tgt-setup-lun(8)
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