i just bought this ipod but it is disabled it just showing disabled

Why are you posting multiple posts with the same question?

GB

Disabled

Place the iOS device in Recovery Mode and then connect to your computer and restore via iTunes. The iPod will be erased.

iOS: Wrong passcode results in red disabled screen

If recovery mode does not work try DFU mode.

How to put iPod touch / iPhone into DFU mode « Karthik's scribblings

For how to restore:

iTunes: Restoring iOS software

To restore from backup see:

iOS: How to back up

If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.

You can redownload most iTunes purchases by:

Downloading past purchases from the App Store, iBookstore, and iTunes Store

Note, it may ask then ask for the previous owners Apple ID and passsword to setup the iPod. That is needed unless you want a thin brick.

iCloud: Find My iPhone Activation Lock in iOS 7

If it is disabled due to invalid password attempts, and it is running iOS 7, you need to return it to your "friend" for a refund, or find out what your friend's Apple ID and password are. Otherwise, you have a brick on your hands.

GB