Does any of you know how to get the pathname of the perl script that is being executed?

Say it is located in /home/wolfpack/perl/ I run it from /home/wolfpack by giving the absolute path name like, /home/wolfpack/perl/scriptname [arguments] I want to get the path /home/wolfpack/perl so that I can use some files inside that directory so that perl does not search for them inside the current working directory which is /home/wolfpack/