Hello Monks,
I want read/write access to a file. I run this script on Vista with ActiveState Perl-5.10.0.
use warnings;
use strict;

open my $FH,">>","test.txt" or die ">>: $!";
my @file = <$FH>;
if (defined $file[0]){
    print "Open with >>: ",shift @file,"\n";
}
else {
    print "Open with >>: undef\n";
}
close $FH;

open my $IN,"+<","test.txt" or die "#<: $!n";
my @file_new = <$IN>;
if (defined $file_new[0]){
    print "Open with +<: ",shift @file_new,"\n";
}
else {
    print "Open with +<: undef\n";
}
close $IN;

[download]

I get this output:
Open with >>: undef
Open with +<: Test

[download]

Until this "problem" occured I opened the files I had to access (read/write) with ">>" and it worked as I expected.
Is this something related with Perl 5.10?

In reply to Problems with open $FH by walto

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.