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Top Forums Shell Programming and Scripting Perl: Conditional replace based on previous and current value in a line Post 302602691 by birei on Tuesday 28th of February 2012 04:15:40 AM
Old 02-28-2012
Why didn't you post that input file in your first message? And why didn't you tell us all your requirements at once? Because probably that doesn't involve an improvement in the code, but to redo it with other approach. Take it as an advice, but you will find more help if work like that.

Quote:
Say the input file is the one below. I need to replace 1st P0 with M0 and second with 00 if and only if the value of port is 1 on both V{}
What does it mean? I don't see any 'port' value in your input file.
 

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DH_PERL(1)							     Debhelper								DH_PERL(1)

NAME
dh_perl - calculates Perl dependencies and cleans up after MakeMaker SYNOPSIS
dh_perl [debhelperoptions] [-d] [librarydirs...] DESCRIPTION
dh_perl is a debhelper program that is responsible for generating the ${perl:Depends} substitutions and adding them to substvars files. The program will look at Perl scripts and modules in your package, and will use this information to generate a dependency on perl or perlapi. The dependency will be substituted into your package's control file wherever you place the token ${perl:Depends}. dh_perl also cleans up empty directories that MakeMaker can generate when installing Perl modules. OPTIONS
-d In some specific cases you may want to depend on perl-base rather than the full perl package. If so, you can pass the -d option to make dh_perl generate a dependency on the correct base package. This is only necessary for some packages that are included in the base system. Note that this flag may cause no dependency on perl-base to be generated at all. perl-base is Essential, so its dependency can be left out, unless a versioned dependency is needed. -V By default, scripts and architecture independent modules don't depend on any specific version of perl. The -V option causes the current version of the perl (or perl-base with -d) package to be specified. library dirs If your package installs Perl modules in non-standard directories, you can make dh_perl check those directories by passing their names on the command line. It will only check the vendorlib and vendorarch directories by default. CONFORMS TO
Debian policy, version 3.8.3 Perl policy, version 1.20 SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Brendan O'Dea <bod@debian.org> 8.9.0ubuntu2.1 2012-06-12 DH_PERL(1)
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