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  1. or download this
    #! perl -l
    use strict;
    ...
    unlink("file1") or print __LINE__ . ": This isnt printed $!/$^E";
    unlink("file2") or print __LINE__ . ": This isnt printed $!/$^E";
    
  2. or download this
    C:\test\junk>..\junk41
    26: Cant remove file1 because Permission denied/The process cannot acc
    +ess the file because it is being used by another process
    ...
    [2] pipe closed
    [2] thread ending
    36: This isnt printed No such file or directory/The system cannot find
    + the file specified