Unit 4 Hw

Homework The following homework is designed to cover the look sharp objectives for this unit. Assignment 4.1: Complete the following exercises in your textbook: * Exercises 1, 3, 4, and 6 starting on page 249 * Advanced Exercise 11 on page 251 1. What does the shell ordinarily do military personnel a argument is executing? What should you do if you do non motive to wait for a manage to finish forwards sackning former(a) command? The shell executes commands or waits and sleeps. The command line leave behind do the commands in pitch. 3. What is a pelvic inflammatory sickness number? Why atomic number 18 these come useful when you run processes in the background? Which utility displays the pelvic inflammatory disease poem of the commands you are run? A PID is a Process acknowledgment Number. Each of these numbers identifies the command running in the background. so the shell displays another prompt and you after part enter another comman d. When the background job finishes running, the shell displays a message self-aggrandizing both the job number and the command line apply to run the command. To see the PID numbers type: ps 4. convey that the following accuses are in the working directory: $ ls intronotesbref2 slit1section3section4b notesaref1 ref3 section2section4a sentrev translate commands for each of the following, using wildcards to express filenames with as few characters as possible. a.

tend completely files that begin with section. $ ls section* b. nominate the section1, section2, and section3 files only. $ ls section[1-3] c. List the intro file only. $ ls i* d. List the sec tion1, section3, ref1, and ref3 files. $ ls! *[13] 6. Give a command to a. Redirect the standard produce from a ramify command into a file named phone_list. assume that the input file is named numbers. $ sort numbers > phone_list b. Translate whole occurrences of the characters [ and { to the character (, and all occurrences of the characters ] and } to the character ) in the file permdemos.c. (Hint: describe to the tr man page.) $ cat...If you want to get a full essay, order it on our website: OrderEssay.net

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