unix sysyem questions

Last login: Thu Mar 4 15:34:51 2021 from $ cat /home/thomam/class_stuff/unix/special_vars_hw Class 7 Exercises 9 1. How do you display the following statement in the shell: The $PATH variable is used to find and execute programs. ok Heb ng I 2. How do you display the following statement in the shell (show a couple of ways) : U.c. classes cost a lot of $$$$$! ure 3. Will the following work on cwclinx, if placed in a script on line 1, column 1 (why or why not)? #!/sbin/bash can: ins RC 4. You wish to maintain a count of the total number of users that log onto your system each day, and store that count in a variable TOTAL_USERS. What is the math syntax increment to this variable by 1? 4. You wish to maintain a count of the total number of users that log onto your system each day, and store that count in a variable TOTAL USERS. What is the math syntax increment to this variable by 1? 5. Write a shell script called args, which when invoked as follows, produces the following output (for any given input): $args a b c d You have entered 4 arguments Your arguments are: abcd $args one two three You have entered 3 arguments Your arguments are: one two three