Chapter 7, Problem 17RQ

Write a shell script “lsmore.sh” that displays the filename with last three lines for each file in the current directory. (Unix shell )

Explain the behavior of the following shell script:   $ cat quote_demo twoliner="This is line 1. This is line 2." echo "$twoliner" echo $twoliner   a.How many arguments does each echo command see in this script? Explain. b.Redefine the IFS shell variable so that the output of the second echo is the same as the first.

Explain the behavior of the following shell script: $ cat quote_demo twoliner="This is line 1. This is line 2." echo "$twoliner" echo $twoliner How many arguments does each echo command see in this script? Explain. Redefine the IFS shell variable so the output of the second echo is the same as the first. Add the exit status of

16. Following set of commands are executed in shell, what will be the output?>>>str="hello" >>>str[:2] >>>               a. he b. lo c. olleh d. hello

What are two ways you can execute a shell script when you do not have execute permission for the file containing the script? Can you execute a shell script if you do not have read permission for the file containing the script?

Write a shell script to ADD two numbers? $ ./ADD 5 6 Output: Sum of 5 and 6 = 5+6 = 11 Use Switch Statement to solve the question

This needs to be done using Linux bash shell script. 2. Write a shell script display_digits to display all digits ( from leftright ) if the input is an integer, otherwise, show that the input isnot an integer, e.g.,"display_digits 1978 show "1 9 7 8", and"display Hahah12" should display "Hahah12 is not an integer"Hint: you will likely need to use the pipe | , echo command, and cut -ccommand. Also could you show screenshots.

Write a shell script which takes your date year and tells your age

In Unix/Linux: What is the difference between the . (ie the dot) char meaning for Shell globbing and . (ie the dot) char meaning for egrep ? What is the different between [] and [[ ]] in shell ? Hint : alternate form of test cmd Describe xargs with an example.