Question

You will create a shell script that prints out the following information about the system it is run on:

• The system’s name and IP address

• How much memory the system is currently using, and how much total memory it has

• The number of CPUs of the machine

• The number of unique users on the system at that moment

When your script is run, each of these values should be clearly labeled in the output, such as Number of active users: 10 Exactly how you choose to format the information you print is up to you, so long as it is easy to interpret and the labels for each value are clear. (Adding any additional visual touches, such as a title or horizontal dividers, is permitted.) Your script should not create any intermediate files when run, and should not add anything to or remove anything from the filesystem. You may wish to query 1 the information above using commands and then store the results in variables before printing them. Much of the information above can be found and formatted using commands already introduced in this course, especially related to handling rows and columns of information. You can use the help commands discussed in class, such as man -k or apropos to help you search for useful commands if you are not sure where to begin. Once you are satisfied your script is working, you submit the script, as well as a log of you running it on at least two different lab machines, whether physical lab machines or on tuxworld. Note that you can connect to different tuxworld machines from a lab environment or from a shell in tuxworld by running the command ssh tuxn where ”n” is a single integer, such as 6 or 8. If you have developed the script on your own machine, you can transfer it to tuxworld using the scp command for testing.

Answer 1

#/bin/bash

echo "System name is: "
hostname
echo
echo "Ip address is: "
hostname -I
echo
echo "Total memory usage and total available memory report: "
free -t
echo
echo "The number of CPUs of the machine : "
nproc
echo
echo "The number of unique users on the system at that moment : "
echo
w

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