What should you do if you do not want to wait for a command to finish before running another command? Answer: The shell waits for the command to finish executing. You can send the command to the background by using “&”. 2. What is a PID number? Why are these numbers useful when you run processes in the background? Which utility displays the PID numbers of the commands you are running? Answer: A PID number is an identification number assigned to a command running in the background, which can be used to differentiate between commands.
There's a specialist from your university waiting to help you with that essay.
Tell us what you need to have done now!
order now
The PS (process status) utility. 3. Assume that the following files are in the working directory: $ ls intro notesb ref2 section1 section3 section4b notesa ref1 ref3 section2 section4a sentrev Give commands for each of the following, using wildcards to express filenames with as few characters as possible. a. List all files that begin with section. Answer: $ ls section* b. List the section1, section2, and section3 files only. Answer: $ ls section[1-3] c. List the intro file only. Answer: $ ls i* d. List the section1, section3, ref1, and ref3 files.
