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Top Forums Shell Programming and Scripting How to go about Using a "Validate an IP script" in conjunction with Logfile? Post 302506705 by Chubler_XL on Monday 21st of March 2011 05:26:54 PM
Old 03-21-2011
If you have grep that supports -o and -w, this should do the trick:
Code:
IPD='(25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])'
grep -woE "$IPD\.$IPD\.$IPD\.$IPD" infile


Or using awk:
Code:
awk -v IPD='(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[1-9])' '{
 while(match($0,W IPD"\\."IPD"\\."IPD"\\."IPD W)) {
     print substr($0, RSTART+1, RLENGTH-2);
         $0=substr($0,RSTART+RLENGTH);
 }} ' W='[^[:digit:][:alpha:]_]' infile


Last edited by Chubler_XL; 03-21-2011 at 07:23 PM.. Reason: Added awk solution
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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