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data.txt
hello.pl~45~warning~454~null pointer
...
hello.pl~4532~warning~454~badpointer
hello.pl~22~warning~454~null pointer
hello.pl~88~warning~454~null pointer

lineChanged.txt
22-33
90
42-44
100

hello.pl~43~warning~454~memory 
hello.pl~22~warning~454~null pointer

while (<CHANGES>) {
  chomp;
...
   
    #print "############ Here ################\n";
    }