Dear frd, Read the man page of Open command.

here I have posted the correct code. Check it. 

   use strict;
use warnings;


$a = "test", $b = "myfile";
open(IN, $a) || die "cannot open for reading,  $! ";
open(OUT,">$b") || die "cannot open for writing, $! ";                
+                                                                     
+                                                          
while (<IN>)
{
    print OUT "NO", "\n", " 'SOURCE' ", "SEC", "Q", "SEC ", "\n", "LON
+G", "LAT", "DEPTH", "GAP"
}
close (IN);
close (OUT);

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In reply to Re: Format file2 by leslie
in thread Format file2 by velocitymodel

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