O Wise ones,

I am a summer intern, and my first perl script is to write a script that will open a dat file and move through it string be string commenting it out and writing each seperate instance to another dat file. So edit1.dat would have "$Blue Car Green" and edit2.dat would have "Blue $Car Green", etc... :

Here is what I have: 

#!usr/bin/perl
use File::Copy;

print "What file would you like to edit? \n";
chomp($editfile = <>);
copy($editfile, "edit.dat") || die "Cannot copy file: $!";

open(INFO,"edit.dat") || die "Can't open edit.dat: $!";

$header = <INFO>;
undef $/;
$sequence = <INFO>;
my @twodarray = split(' ',$sequence);
$list[0] = \@twodarray;
$x=1;
for ($j=0; $j<=$#{$list[0]}; $j++) {
for ($k=0; $k<=$#list; $k++) {
    copy("edit".$x.".dat", "edit.dat");
    open(OTHER, ">edit$x.dat");
    seek OTHER, 0 ,0;
    $position = $list[$k][$j];
    $commentout = "\$";
    $commentout = $commentout .= $position;
    s/$position/$commentout/;
    print OTHER;
    $x++;
}
print "\n";
} 
close INFO;

[download]

Well it creates the files, but they are all empty. But I checked the $position and $commentout variables, and they hold the right values. I'm a noob to the ways of perl, so any help would be greatly appreciated. Thanks.

"theintern"

20070621 Janitored by Corion: Added formatting, code tags, as per Writeup Formatting Tips

In reply to Opening a file, editing, copying to another by theintern

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.