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Here are some brain crackers:
Write a script that does the following:
Display the name of the script being executed.
Display the first, third and tenth argument given to the script.
Display the total number of arguments passed to the script.
If there were more than three positional parameters, use shift to move all the values 3 places to the left.
Print all the values of the remaining arguments.
Print the number of arguments.
Test with zero, one, three and over ten arguments.
Write a script that implements a simple web browser (in text mode), using wget and links
-dumpto display HTML pages to the user. The user has 3 choices: enter a URL, enter b for back and q to quit. The last 10 URLs entered by the user are stored in an array, from which the user can restore the URL by using the back functionality.