Sum even numbers from 1 to 100

Sum even numbers from 1 to 100
# 1
Sum even numbers from 1 to 100

I need help with this assignment. I'm very new to using UNIX/LINUX, and my only previous experience with programing anything is using python.

We are writing scripts using vim, and this one I'm stumped on.

"Write a shell script that finds and display the sum of even positive integers from 0 to 100. Use the while control structure. Show your script and a sample run.

Example: Sum of 0+2+4+6+8+10+12+14............+96+98+100. "

I can find examples of listing even and odd numbers, but everything else I seem to find is adding numbers from an input from the user, but I want to add the numbers together from a range of {1..100}.
Any help would be greatly appreciated.

Last edited by RudiC; 02-28-2019 at 10:21 AM..
 Nastybutler View Public Profile for Nastybutler Find all posts by Nastybutler
# 2
Quote:
Originally Posted by Nastybutler
...
I can find examples of listing even and odd numbers, but everything else I seem to find is adding numbers from an input from the user, but I want to add the numbers together from a range of {1..100}.
Any help would be greatly appreciated.
It would be nice to see what you have so far!
 milhan View Public Profile for milhan Visit milhan's homepage! Find all posts by milhan
# 3
I have erased and restarted so many times out of frustration what I have I know is nowhere close to what I'm looking for.

So the idea is I'm taking the numbers from this list: {0..100}

and I only want the ones that are even:
Take those even numbers and print out them all out, adding them together like:
"2+4+6+8.....+98+100"

 Please use CODE tags as required by forum rules!

Last edited by RudiC; 02-28-2019 at 10:23 AM.. Reason: Added CODE tags.
 Nastybutler View Public Profile for Nastybutler Find all posts by Nastybutler
# 4
There is a third argument to the for statement, and that is the step.
The for statement provides for incrementing "n"
 jgt View Public Profile for jgt Visit jgt's homepage! Find all posts by jgt
# 5
If you replace the while-do-done with an if-then-fi it makes sense: "if the remainder is zero then sum up"
# 6
Do not post homework / classworkquestions in the open fora. We have a special forum for those. Please fill in the entire form.

I guess - as this is an exercise for writing while loops - you can't adapt the Gaussian Sum Formula ( n(n+1)/2 )?

Last edited by RudiC; 02-28-2019 at 10:25 AM..
 RudiC View Public Profile for RudiC Find all posts by RudiC

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