my @arr= nv.txt;

my (%hash, $key, $val);

foreach (@arr) {
  $pre1="\$hash{$key}";   #previous key  of the loop
  $pre2=$val;              #previous value of the loop
  ($key, $val) = split (/:/,$_,2);
    if($pre1 eq "\$hash{$key}")  #if previous and current key same
   {
    $hash{$key}= $pre . '\n' . $val; #concatenate
    }
      $hash{key}=$val;
    print "\$hash{$key}={$vaal}\n";



}

[download]
input file
nv.txt has files in the form of a array like this,

test/right/case1:12: //comment
test/right/case1:344: //comment
test/wrong/case3:123:  //comment

[download]
code> output test/right/case1:12 : //comment :344: //comment test/wrong/case3:123: //comment

If the path address is same, then values should be saved in one key(path address) else different key. I think I'm not able to concatenate now or if there should be any other solution or modification, help me.

In reply to Re: Copying files from one file to another file by harishnv
in thread Copying files from one file to another file by harishnv

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