Thx for the reply mate!!!!the problem is that i have taken very hard subjects such as enterprise programming and client server architectures which has kept me busy throughout the semester with assignments so i didnt get time to study this because unix was one of the easier subjects at the start of the semester!!!Well its not now!!!!I am so preoccupied with other subjects that i am not gettin time....ni hav to submitt this assignment next monday...so if u cud help me tht wud be gr8....and i made a mistake with the directory so if i want to remove files in vats directory it shud be

cleanup /home/vats and not cleanup /home/foo

Sorry for the mistake...i have edited the post as well!!!