How much space I am using? can't understand df

[ramow]

Sorry for this dumb question but can someone explain df for me and how much in GB my Linux and other stuff is occupying.

[root@localhost java]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
18251068 2190848 15118140 13% /
/dev/hda1 101086 10817 85050 12% /boot
tmpfs 127664 0 127664 0% /dev/shm

[root@localhost java]# uname -a
Linux localhost.localdomain 2.6.18-1.2798.fc6 #1 SMP Mon Oct 16 14:37:32 EDT 2006 i686 i686 i386 GNU/Linux

I am planning to use a 4GB flash drive instead of the 20GB hard disk that I am using now. I need to make sure my linux and my other files would fit on my new flash.

[Tutku]

intead of df you can use

df -h

, and df -d command result is like this:

[titus@blackbox ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 15G 2.7G 11G 21% /
none 121M 0 121M 0% /dev/shm
/dev/sda1 23G 13G 9.7G 57% /mnt/win
[titus@blackbox ~]$

I think it is more clear than yours.

[ramow]

Thanks dude that was helpful