Make a program which writes hello world 10 times.
Modify hello_world.pike to write the first argument to the program.
Make a program that writes a hello_world program to stdout
Modify the register program to store data about programs and diskettes
instead of songs and records.
Add code to the register program that checks that the user typed
an argument when required. The program should notify the user and
wait to receive more commands instead of exiting with an error message.
Add code to the register program to check that the arguments to
show_record and delete_records are numbers. Also
make sure that the number isn't less than one or bigger than the
available number of records.
Rewrite the register program and put all the code in main().