NAME

Filesystem::DiskFree -- perform the Unix command 'df' in a portable fashion

SYNOPSIS

use Filesystem::DiskFree;

$handle = new Disk:Free;
$handle->df();
print "The root device is ".$handle->device("/")."\n";
print "It has ".$handle->avail("/")." bytes available\n";
print "It has ".$handle->total("/")." bytes total\n";
print "It has ".$handle->used("/")." bytes used\n";

DESCRIPTION

Filesystem::DiskFree does about what the unix command df(1) does, listing the mounted disks, and the amount of free space used & available.

Functions

Filesystem::DiskFree->set('option' => 'value')

Sets various options within the module.

The most common option to change is the mode, which can be either blocks or inodes. By default, blocks is used.

If reading a file from a 'foreign' OS using the load() function, format may be used, which takes the name of an OS as set in the $^O variable.

Returns the previous values of the options.

Filesystem::DiskFree->df()

Perfoms a 'df' command, and stores the values for later use.

Filesystem::DiskFree->command()

Returns the appropriate command to do a 'df' command, for the current format. This is used when you wish to call a df on a remote system. Use the df() method for local df's.

Returns undef if there isn't an appropriate command.

Filesystem::DiskFree->load($line)

Reads in the output of a 'df', $line can be either a scalar or a filehandle. If $line is a filehandle, then the filehandle is read until EOF.

Returns undef on failure

Filesystem::DiskFree->disks()

Returns all the disks known about

Filesystem::DiskFree->device($id)

Returns the device for $id, which is a scalar containing the device name of a disk or a filename, in which case the disk that filename in stored upon is used.

Filesystem::DiskFree->mount($id)

Returns the mount point for $id, which is a scalar containing the device name of a disk or a filename, in which case the disk that filename in stored upon is used.

Filesystem::DiskFree->avail($id)

Returns the amount of available space in bytes for $id, which is a scalar containing the device name of a disk or a filename, in which case the disk that filename in stored upon is used.

Filesystem::DiskFree->total($id)

Returns the amount of total space in bytes for $id, which is a scalar containing the device name of a disk or a filename, in which case the disk that filename in stored upon is used.

Filesystem::DiskFree->used($id)

Returns the amount of used space in bytes for $id, which is a scalar containing the device name of a disk or a filename, in which case the disk that filename in stored upon is used.

BUGS

It should support more formats, currently only Linux, Solaris & BSD are supported. Other formats will be added as available. Please sent the 'best' df options to use, and the output of df with those options, and the contents of $^O if you have access to a non-supported format.

AUTHOR

Alan R. Barclay <gorilla@drink.com>