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How to find how much free space left on my hard disk?

When I installed Red Hat Linux on my 19GB hard disk, I left 7868MB free (1432-2434) free.

Now how can I find out this information that I have left 7868MB? this is what I know and I wrote it down on piece of paper but is there any command to find out how much space I have left on my hard disk which is "raw" or "un-allocated" or "unpartitioned" ?

Thanks,
Data Sheet

cfdisk
parted
gparted (gui for parted)

In terminal

Code:

fdisk -l

(man fdisk)

df -h... dang, beat to it!

If you use KDE, there's also kdiskfree and kdf but I don't know how well those work. I also don't know if I just said the same program twice - I don't use the GUI for these kinds of things.

cfdisk is better than all of those though.

The tools df -h , kdiskfree and kdf all see to assume you only want info for one drive. Also, cfdisk isn't installed by default for Redhat / Fedora.
So, I made a little diddy to calculate unpartitioned space for a drive which you choose.

Just put this in a file like drive.pl and make it executable with chmod +x drive.pl
Then, you would run it like this example...
./drive.pl /dev/hda

Code:

#!/usr/bin/perl -w

##### This script calculates hard drive space.

##### example:  ./drive /dev/hda



if($#ARGV != 0){

    die "Example: $0 /dev/sda \n";

}

if(!-e $ARGV[0]){

  die "$ARGV[0] is not a valid device. Exiting.\n";

}



my $DRIVE = $ARGV[0];

print "\n";



open(INFILE, "/proc/partitions") || die "Can't open file for read: $!";

while (<INFILE>){



$DRIVE =~ s/\/\w+\///g;



if ($_ =~ /($DRIVE$)/){

  ($D1, $D2, $D3, $D4, $D5) = split /\s+/;



} elsif ($_ =~ /($DRIVE[0-9])/){

  ($var1, $var2, $var3, $var4, $var5) = split /\s+/;

      if ($var4 == 1){

        print "Partition /dev/$var5  --- Extended ---\n";

      }

      else {

        $totalused = ($totalused += $var4);

        write;

      }

  }

}

$~ = "ENDING";

write;



format STDOUT =

Partition /dev/@<<<< used @######## MB

$var5, ($var4/1000),  $var1,$var2,$var3

.



format ENDING =



Total drive size  @######## MB

($D4/1000),  $D1,$D2,$D3,$D5

Partitioned size  @######## MB

($totalused/1000)

Unpartitioned size @######## MB

(($D4-$totalused)/1000)



.

####Just so you don't bork that last dot!