1-Develop and test a program to
reenter fields during data entry2-Create a program algorithm to
solve a cursor repositioning
problem3-Create shell functions and use them in a program4-Develop and test a program to
eliminate duplicate records5-Load shell functions automatically when you log in6-. Automating your daily tasks. For example, to back up all the programs at the end of the day. 7- Executing important system procedures, like shutting down the system, formatting a disk, creating a file system etc.
you can try starting off with writing a loop to cat /etc/passwd and then extracting the user id using awk. after that you can use the userid to list specific properties using for.