UNIX-O/S lab external....

Friends.....hw did ur MT lab external go????
Well the SYSTEM CALL programs for Unix lab external are:-
1)Determine existence of file?
2)Determine whether file is readable or not?
3)Abort signal?4)Abort signal Handler?
5)Display file contents?
6)Appending contents to already existing file?

The O/S programs are as follows...
1)SJF-preemptive
2)SJF-non-preemptive
3)FCFS
4)Round robin
5)Optimal
6)FIFO
7)LRU

Aur rahi baat shell scripts and commands ka.....
well everything is there.....all the shell scripts and commands are there...no restrictions
every one will get some commands,1 shell script,1 system call,1 o/s program

All these programs are available at the following address
http://www.4shared.com/ is site address
123qwerty@yahoo.com is login id
123456 is password
search for them there....
All the best!!!!!