NAME Perl::Exactly - ensures exactly version of perl SYNOPSIS use Perl::Exactly 5.005; # ensures perl is 5.005 use Perl::Exactly 5.016; # ensures perl is 5.016, but doesn't "use strict" and "use feature" DESCRIPTION Perl::Exactly ensures that perl interpreter matches to required version exactly. If running perl doesn't match required version then Perl::Exactly finds it using Perl/Exactly.pm.conf, and executes script again on it. When exactly version of perl not found, script will die. INSTALLATION 1. Copy Perl/Exactly.pm and Perl/Exactly.pm.conf to @INC directory. CONFIGURATION 1. Edit Perl/Exactly.pm.conf to define paths of perls. SAMPLE of Perl/Exactly.pm.conf # Configuration file of Perl/Exactly.pm +{ # DOS-like system ($^O =~ m/\A (?: MSWin32 | NetWare | symbian | dos ) \z/oxms) ? ( 5.005 => 'C:/Perl/bin/perl.exe', 5.006 => 'C:/Perl56/bin/perl.exe', 5.008 => 'C:/Perl58/bin/perl.exe', 5.010 => 'C:/Perl510/bin/perl.exe', 5.012 => 'C:/Perl512/bin/perl.exe', 5.014 => 'C:/Perl514/bin/perl.exe', 5.016 => 'C:/Perl516/bin/perl.exe', 5.018 => 'C:/Perl518/bin/perl.exe', 5.020 => 'C:/Perl520/bin/perl.exe', 5.022 => 'C:/Perl522/bin/perl.exe', 5.024 => 'C:/Perl524/bin/perl.exe', ) : # UNIX-like system ( 5.005 => '/path/to/perl/5.005/bin/perl', 5.006 => '/path/to/perl/5.006/bin/perl', 5.008 => '/path/to/perl/5.008/bin/perl', 5.010 => '/path/to/perl/5.010/bin/perl', 5.012 => '/path/to/perl/5.012/bin/perl', 5.014 => '/path/to/perl/5.014/bin/perl', 5.016 => '/path/to/perl/5.016/bin/perl', 5.018 => '/path/to/perl/5.018/bin/perl', 5.020 => '/path/to/perl/5.020/bin/perl', 5.022 => '/path/to/perl/5.022/bin/perl', 5.024 => '/path/to/perl/5.024/bin/perl', ) } __END__ SEE ALSO ina - CPAN http://search.cpan.org/~ina/ BackPAN - A Complete History of CPAN http://backpan.perl.org/authors/id/I/IN/INA/