Hi,
I am trying to open a file, and edit some chnages in it. For some reason I cannot open a file for both read and write at the same time, and update it. Please see what I am doing wrong in the following subroutine 

sub reset ($@) {
    my $dir  = shift @_;
    my @nums = @_;
    
    opendir (DIRHANDLE, $dir) or die "cannot open directory $dir \n";
    my @files = readdir (DIRHANDLE);
    close DIRHANDLE;
    
    my $file;
    foreach $file (@files) {
        #print "$dir/$file \n";
        if (-d "$dir/$file" && $file ne "." && $file ne "..") {
            &reset("$dir/$file",@nums);
        } elsif ($file eq "allstar_header.db") {
            print "$dir/$file \n";
            open (FILEHANDLE, "+<$dir/$file") or die "Can't open $dir/
+$file \n";
            while (<FILEHANDLE>) {
                if ($_ =~ /\s*solver_version_major_h.*/) { 
                    print $_; 
                    s/\d+/$nums[0]/; 
                    print "\t $_"; 
                }
                if ($_ =~ /\s*solver_version_minor_h.*/) { 
                    print $_; 
                    s/\d+/$nums[1]/; 
                    print "\t $_"; 
                }
                if ($_ =~ /\s*solver_version_fix_h.*/)   { 
                    print $_; 
                    s/\d+/$nums[1]/; 
                    print "\t $_";
                }
            }
            
            close FILEHANDLE;
                    
        }
    }

    return 0;
}

[download]

In reply to update a file by jalebie

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.