How to Take the Backup of SubSite in MOSS 2007

Hi Devs,
If you want to take the backup of subsite in command prompt.

stsadm.exe is in the following installation path"C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN\stsadm.exe"

Syntax:
stsadm.exe -o export -url -filename

Example
stsadm.exe -o export -url http://localhost/subsite -filename subsitebackup.dat