Re: FW: looking for two remote functions

On 3/11/07, Myron Turner <turnermm02@shaw.ca> wrote:

Myron Turner wrote: Tijnema ! wrote:

On 3/10/07, Németh Zoltán <znemeth@alterationx.hu> wrote:

2007. 03. 10, szombat keltezéssel 12.42-kor Riyadh S. Alshaeiq ezt írta:

Actually if right click on any file or folder on a machine you

will see that

there are two values (Size on disk & Size). Files and folders are

stored on

the disk in what is called clusters (a group of disk sectors).

Size on disk

refers to the amount of cluster allocation a file is taking up,

compared to

file size which is an actual byte count. As I mentioned before what I want is a function for getting the

result for

the Size no for Size on Disk

okay then what about this?

Th I wrote a small perl script which returns the bytes read when a file is read from the disk and it, too, agrees with the filesize and header sizes. In Windows, the actual filesize is also returned by filesize and stat, not the size on disk (filesize uses stat). Also, in the PHP manual, the fread example uses filesize to set the number of bytes to read: || Here's the perl script:

    use strict;
    use Fcntl;
    sysopen (FH, "index.htm", O_RDONLY);
    my $buffer;
    my $len = sysread(FH, $buffer, 8192,0);
    print $len,"\n";

If you are really anxious about size you can exec out to this script and get the file size. -- Sorry the above version of the script was hard-coded for a small test file. Here's the general version: # get_len.pl use strict; use Fcntl; sysopen (FH, $ARGV[0], O_RDONLY) or die "\n"; my $buffer; my $bytes_read = 0; my $offset; while($bytes_read = sysread(FH, $buffer, 8192, $offset)) { $offset+=$bytes_read ; } print $offset,"\n"; From an exec() you'd call it with the file name:

      perl get_len.pl <filename>

$len = exec("perl get_len.pl $filename");

I'm not very familiar with PERL, so will this work with remote files? As it seems that you are just reading from local hard drive... Tijnema _____________________

Myron Turner http://www.room535.org http://www.bstatzero.org http://www.mturner.org/XML_PullParser/