Shell Programming and Scripting

We cannot guess what it's doing until you actually show us, especially when your program and your explanation appear to contradict each other.

Show us -- word for word, letter for letter, keystroke for keystroke -- how you'd run that program manually, to input one value, and get one result back. Use screenshots if you have to, but we need to see how it's used. It's not enough to know that it "can work" somehow, when all you've given us is a program which doesn't.

The separate script called perm adds an unwanted level of complexity to the main script because we now have to pass parameters to the other script and receive the results.
This is one of those posts where we would rather see the the problem than the solution.
In UK we have a saying, KISS.

I don't know what you mean by the UK comment but I hope it is not derogatory. The most important thing which is what I need to run is the itgen............I created perm just to save that program. This is an animal breeder's took kit that is preprogrammed to run that way. what it does is to iterate for 500 rounds-r rhs is the name of the file on the right hand side, -n con is another file and -b beta is the answer I am looking for. It is like this con*beta=rhs therefore, beta=con-1*rhs. So each line in file odon will pass through this program and beta will be produced. Unless I can create a script that can produce beta for each line and save it like beta0, beta1 etc, then I will have to manually do it myself. This is the script I tried for just one line:
while read line
do ./perm
done < odon #note that the file odon has one line 12 1 1 so only beta for the line will be produced

(KISS = Keep it Simple)

Ps. I'll leave you to work out how to use code tags and how to lay out a post so that non-specialists in your field can understand the post. No offence intended, but when I last looked post #10 was too difficult to understand.

You've given a third explanation now; partially contradicting the other two before it. I'm less sure which of your three partial explanations to believe than ever.

Don't tell us how it's used in words, just show us what keys you hit and what the program puts back out to terminal and/or file. Show a working example of you using it once, not in a loop, with one value. Show what you type in. Show what you get out.

Show us how you'd run that program manually, putting one value in, getting one value out. Use screenshots if you have to, but show us!.

Don't show us a script which doesn't do what you want. Obviously that won't tell us what you do want -- it's wrong, but in what way is it wrong? We can't know the way to run it successfully without seeing you run the program successfully.

If I knew what to do, don't you think I would have done it? That's why I am asking for input, I am about 1 month into programing. Thanks

I am not asking you to write the script.

You apparently know how to use this 'perm' program for single items but don't know how to put it in a loop.

We don't know how to run this program yet, not even for single items. All we have is your broken loop which doesn't work. We can't guess which of 10,000 possible variations of parameters and piping 'perm' actually expects, and your explanations seem a bit muddled.

I am asking you to run 'perm' in your terminal once, cat its output files if any, hit your 'print screen' key, and attach the screenshot. That will unambiguously show how your program is used on a single item, and we can build a loop around it from there.