get binary executing my script

prashanthch has asked for the wisdom of the Perl Monks concerning the following question:

Lets assume I have two perl binaries which can run my script (perla, perlb which represent two versions of perl). Is there a way to determine which perl was used to run the script from inside the script? I know that $0 gives the script name but how do I get the binary that is running the script?

Thanks

Comment on get binary executing my script

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Re: get binary executing my script by thundergnat (Deacon) on Mar 16, 2012 at 18:40 UTC
How about $^X? `perl -e" print $^X "` yields C:\Perl\bin\perl.exe On Windows. (obviously)	[reply] [d/l]
Re^2: get binary executing my script by prashanthch (Novice) on Mar 16, 2012 at 19:06 UTC
that worked, thank you so much	[reply]
Re: get binary executing my script by Marshall (Canon) on Mar 16, 2012 at 17:31 UTC
Will the special Perl variable `$]` do what you want? $] The first part of the string printed out when you say perl -v. It can be used to determine at the beginning of a script whether the Perl interpreter executing the script is in the right range of versions. If used in a numeric context, $] returns version + patchlevel /1000.	[reply] [d/l]
Re^2: get binary executing my script by prashanthch (Novice) on Mar 16, 2012 at 18:35 UTC
Hi thanks for the reply, no it doesn't do exactly what I want to do. it gives me the version info but the versions of perla and perlb are the same thanks	[reply]