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  • is the file really has a line number? Commented Nov 21, 2014 at 9:34
  • No. It doesnt have. I gave it for understanding.. Commented Nov 21, 2014 at 10:55
  • it's a tough job. did you wanna python solution? Commented Nov 21, 2014 at 11:54
  • Perl or unix is i am mainly looking for. Commented Nov 21, 2014 at 12:01
  • python is preinstalled on most of the linux distributions. I don't know what's wrong with the dangerous but user friendly python language. Commented Nov 21, 2014 at 12:05