1. What are some other command shells, aside from Bash?
2. An ____ allows you to create a new command that executes a different command or string of commands.
3. A ____ should be the first line in your script and informs the shell which interpreter to use.
4. Commands that you've executed previously can be seen by using the ____ command.
5. ____ captures output from commands that are run and is identified by the number 1.
6. Error messages are written to ____ and can be identified by the number 2.
7. The _ operator redirects output to a file and appends it to the end of that file.
8. The _ operator redirects output to a file and wipes the content of that file.
9. After storing information in a variable, you must include the _ symbol in the variable name in order to fetch its contents.