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Shell Programming and Scripting
Perl Pattern matching...
Post 302540030 by rajiv75 on Tuesday 19th of July 2011 10:54:39 AM
07-19-2011
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i can only find the first occurance of a pattern how do i set it to loop untill all occurances have changed.
#! /usr/bin/perl
use POSIX;
open (DFH_FILE, "./dfh") or die "Can not read file ($!)";
foreach (<DFH_FILE>) {
if ($_ !~ /^#|^$/) {
chomp;
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Hi,
I got doubt in Pattern matching, could you tell me how the following differs in action ??
if ( $line1==/$line2/ )
if ( $line1=~/$line2/ )
if ( $line1=~m/$line2/)
What is the significance of '~' in matching.
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----------
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-------------------
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LEARN ABOUT DEBIAN
pfunc
PFUNC(1p) User Contributed Perl Documentation PFUNC(1p) NAME
pfunc - grep for perl functions SYNOPSIS
pfunc subroutine FILES... DESCRIPTION
pfunc searches the named FILES for all calls to the given subroutine. It will report back the file and line number each call is found on along with what sort of call it is function foo() class method Class->foo() object method $obj->foo() EXAMPLE
$ pfunc isa /usr/share/perl/5.6.1/*.pm Called as function in /usr/share/perl/5.6.1/CGI.pm at line 316 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 327 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 397 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 494 Called as function in /usr/share/perl/5.6.1/CGI.pm at line 495 Called as object method in /usr/share/perl/5.6.1/CPAN.pm at line 4957 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 191 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 218 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 248 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 251 Called as function in /usr/share/perl/5.6.1/Dumpvalue.pm at line 254 Called as object method in /usr/share/perl/5.6.1/Shell.pm at line 28 Called as object method in /usr/share/perl/5.6.1/base.pm at line 12 NOTES
Its not fast, but its accurate. AUTHOR
Michael G Schwern <schwern@pobox.com> SEE ALSO
Module::Info perl v5.10.1 2010-10-03 PFUNC(1p)