You said:

while(<PAGES>) {
    push(@pages, $_);  #semi colon added
    }
[download]

Perl doesn't care if there's a semicolon there. Generally it's OK not to have one at the end of a block.

But I'd say that the error messages from Perl are a bit cryptic from time to time; for a newbie, it can be somewhat hard to figure out what went wrong.

What you can do is to forget, first, that this is a CGI. Comment out the "use CGI::Carp" and put in instead

use Carp;
use diagnostics;
[download]

and then run Perl in check-mode: perl -cw myScript.pl and look at the output. You'll get a moderately less cryptic output that starts:

Scalar value @filenames[$i] better written as $filenames[$i] at xx.pl 
+line 71 (#1)
    (W syntax) You've used an array slice (indicated by @) to select a
    single element of an array.  Generally it's better to ask for a sc
+alar
    value (indicated by $).  The difference is that $foo[&bar] always
    behaves like a scalar, both when assigning to it and when evaluati
+ng its
    argument, while @foo[&bar] behaves like a list when you assign to 
+it,
    and provides a list context to its subscript, which can do weird t
+hings
    if you're expecting only one subscript.
    
    On the other hand, if you were actually hoping to treat the array
    element as a list, you need to look into how references work, beca
+use
    Perl will not magically convert between scalars and lists for you.
+  See
    perlref.
    
Possible unintended interpolation of @filenames in string at xx.pl lin
+e 71.
Scalar found where operator expected at xx.pl line 72, near "] $title"
+ (#2)
    (S) The Perl lexer knows whether to expect a term or an operator. 
+ If it
    sees what it knows to be a term when it was expecting to see an
    operator, it gives you this warning.  Usually it indicates that an
    operator or delimiter was omitted, such as a semicolon.
    
Global symbol "@pages" requires explicit package name at xx.pl line 11
+.
Global symbol "@filenames" requires explicit package name at xx.pl lin
+e 12.
Global symbol "@titles" requires explicit package name at xx.pl line 1
+3.
[download]

This should start you on your way to fixing the problem. The "Global symbol...requires explicit package name" can be cured by declaring your variables using my.

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