1) What shell are you using (what is your default shell)?
2) Exactly what is the command line you use to run the script?
3) Can you show exactly the first line of your script plus the unzip line?
4) Can you show the command you run from the command line that works?
If I write echo $0 at the command prompt it gives me "bash". I tried changing the first line in my .sh file to #!/bin/bash but still gives me same error.
and If I write echo $0 in my .sh file, while executing it says ?Invalid command
Yes I have posted my entire .sh file as I am just trying to unzip write now.