From within my Perl script, I want to determine the location of the Perl binary that executed the script.

My first thought is to use File::Which. But this approach would fail if there is more than one Perl binary installed, or if Perl is not in the path.

Then I thought I could use Config.pm. However this approach also fails if the Perl binary was moved around after compilation.

Finally I thought I could read the script itself and get the path from the shebang line at the top. But this approach also fails since shebang lines are optional!

So now I have run out of thoughts -- And I come to you.

In reply to How to determine the path to the Perl binary that executed your program? by Anonymous Monk

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