Select Code to Download

# To find unique words in files:
#!/usr/bin/perl 
use warnings;
...
                    
exit; 
####################

bat,    
cat,

rat,
bat,

 
bat,
dog,

C:\Users\x\Desktop>m.pl

  Press 1 to enter a new file or 2 to exit:
...

 file3:  
####################

Elements No.: 3

...
 file2: rat

 file3: dog