Unix Assignment

1. Explain the difference between && and ||.

2. What command can be used to take the place of several nested if statements in a bash shell script

3. What command ends every do loop in a whiledo statement? What command ends an untildo statement?

4. Write a script that checks the users home directory for a file named hw5file. Assuming its present, append the file with, Todays date is mm/dd/yy. If you cant locate the file hw5file, then create it and store, This is username on computer_name making my first entry.