Please show me how you test for each one

QUESTION 23 Which of the following commands will run "in the background? date 'date' (back quotes, to the left of 1) date : date & QUESTION 24 Which of the following Unix commands can be used to rename a file in the current working directory? QUESTION 25 Which command is used to display the top of the file? cat head more grep None of the above QUESTION 26 Mark all that apply (are true). The operating system ... Allows software to communicate with system resources (peripherals, disk, etc.) Takes commands from user Manages applications Manages hardware QUESTION 27 hello at the end of the line is matched by lo$ True False