Like this? 
#using activestate perl 5.16.3

use strict;
use warnings;

s/^INPUT|^ORIGIN|\d|\s//g && print while(<DATA>); # '\s' finds newline
+s as well

__DATA__
INPUT

ORIGIN

1 ccctaaaccc taaaccctaa accctaaacc ctaaacccta aaccctaaac cctaaaccct

61 aaaccctaaa ccctaaaccc taaaccctaa accctaaacc ctaaacccta aaccctaaac

121 cctaaaccct aaaccctaaa cgatgcatta ctactcacac gaacgagtga atgaaacaca

[download]
OUTPUT:

C:\Users\James\Desktop\pm\>pm.pl
ccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaa
+ccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaaaccctaa
+acgatgcattactactcacacgaacgagtgaatgaaacaca

[download]

In reply to Re: how to escape new line in a string by james28909
in thread how to escape new line in a string by nica

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