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I've just started a class on scripting and have run into a wall. Can anyone help/hint with this?

Write a shell script to ask for name, major, and expected graduation year. The output should be split onto 3 lines.

Write a shell script to find the sum, the average, and the product of 4 integers entered by the user. The output should be split onto 3 lines

Write a shell script to check whether or not the provided year is a leap year. The output should be the word yes or no

Write a shell script to display all usernames that contains a given pattern of characters. You will need to use the cut and grep commands against the /etc/passwd file to do this.

They won't help do your homework for you (see the LQ rules about homework/classwork). You need to post what you have tried using the code tags too to make it readable.

I see you have lots of these questions. posting search.

jkirchner is correct in noting that LQ members are not here to be your "on call" support team.

This also was cited in your former question on the topic of scripting.

Below is a cut and paste from the LQ Welcome link, as well as a reminder about the LQ Rules

Quote:

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Quote:

Originally Posted by Ziggy2017 (Post 5672190)

I've just started a class on scripting and have run into a wall. Can anyone help/hint with this?

Write a shell script to ask for name, major, and expected graduation year. The output should be split onto 3 lines.
Write a shell script to find the sum, the average, and the product of 4 integers entered by the user. The output should be split onto 3 lines
Write a shell script to check whether or not the provided year is a leap year. The output should be the word yes or no
Write a shell script to display all usernames that contains a given pattern of characters. You will need to use the cut and grep commands against the /etc/passwd file to do this.

This sounds familiar:
http://www.linuxquestions.org/questi...ng-4175598825/

Quote:

Originally Posted by dijetlo (Post 5673218)

Too mean, removed.

Feh...I liked the original idea. :)

Well, I think we both know there's no education in the second kick of a mule.
If the OP continues on like this, he'll discover soon enough the error of his ways, moments after his boss in all likelihood.:)

best way to figure out a script in writing it is, one step at a time. Lets look at all of the steps you will be needing to do to get a complete script to do what you need it to do.

1.

Quote:

input needs:
name
major
expected graduation year

output needs:
print to screen
should be split onto 3 lines

input
http://tldp.org/LDP/Bash-Beginners-G...ect_08_02.html
output
https://www.cyberciti.biz/faq/how-to...t-to-terminal/
math
http://faculty.salina.k-state.edu/ti...bash/math.html

another separate script, or within the same one. Does not matter really, just need to have it do one first then the next.
2.

Quote:

input:
4 integers

output:
print to screen
sum of 4 integers
average of 4 integers
split into 3 lines off of two outputs, does not compute.

another script or within the same script.
3.

Quote:

function:
return yes|no if input year is a leap year or not

print to screen

another script or within the same script.
4.

Quote:

function that writes to screen all usernames that contain a given pattern
using characters, by means of cut and grep. Data to use is /etc/passwd (file)

print to screen

grep
https://www.cyberciti.biz/faq/howto-...in-linux-unix/
cut
http://www.computerhope.com/unix/ucut.htm

that is a lot of homework you want to take credit for others doing the work for you. Do you not think?

Remember what I said in the beginning of this post, take it one step at a time.
rule of thumb:
if you can do it in the command line then it can be done in a script.

the use of a function is my take on it, not the teachers. He or she may or may not like the student showing any kind of initiative.

Function
http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-8.html

Bonus Points:
leap year
http://www.programmingunit.com/2013/...eck-leap-year/

you'd be surprised what one can find out on the internet now days.

I can literally google each sentence starting with "Write a shell script to " in the Opening Post and find answers and examples.

Quote:

Originally Posted by Habitual (Post 5673563)

I can literally google each sentence starting with "Write a shell script to " in the Opening Post and find answers and examples.

that just makes me wonder where the teacher got his homework assignments to give out from. :study:

I got them all done by hand myself. Last two in functions leap year and the grep + cut = user names

all 4 in the same script.

what happen to that OP?