Quiz 3
1. Positional parameter for the first argument.
2. Parameter for the number of arguments provided.
3. Command to make a file executable.
4. Used to read user input.
5. Used to define a loop over a list.
6. Keyword to end an 'if' block.
7. Keyword to end a 'for' or 'while' loop.
8. Variable holding the exit status of the last command.
9. Command to find text patterns in files.
10. Command to list running processes.
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