It is only 5 words, 2 of which are $path 
if( -f $path ){ unlink $path }

perldoc -f unlink
   unlink LIST
   unlink  Deletes a list of files.
...

perldoc -f -f
...
     -f  File is a plain file.

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In reply to Re: code explanation by Anonymous Monk
in thread code explanation by Anonymous Monk

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