So, your basic set of steps is:
  1. Read file1
  2. Read file2
  3. Write file3 with each line from file1 and file2

What happens if they don't have the same number of lines? 

chomp( my @file1 = do { open FH, (+shift); <FH> } );
chomp( my @file2 = do { open FH, (+shift); <FH> } );

my @file3;
while( @file1 && @file2)
{
    push @file3, join(' ', shift(@file1), shift(@file2));
}

open FH, ">output";
print FH join($/, @file3, '');
close FH;

[download]

Of course, you're going to want to add some error-handling for the file operations.

------
We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested

In reply to Re^11: inserting array of data into text file by dragonchild
in thread inserting array of data into text file by Anonymous Monk

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