HI all,
Very new to shell programming and just wanted some help on how to solve the following problem.
I have a small shell script which searches a given file and extracts some string parameters. I want to now be able to call this script from another shell script and somehow pass the parameters back to the calling script where I can assign them to variables and use them.
Any help would be appreciated.

It could be something like this:

And then work through the output/parameters stored in the variable with for/do/done, as an example.

But how are they returned from the called script.

For example I have three string parameters in my called script:
s1,s2,s3

so how would PARAM_LIST=called.sh retrieve my three strings.

Thanks for your help

Your called.sh has to display this params, they should be it's output. No idea how you get them else? Are they written in a file instead?

They are not currently written to a file but that might be the best way to retieve them. I could write to a tmp file and then read from the temp file before deleting it.

Thanks for your help

When they script retrieving the parameters is not writing them to files, they should be printed on the screen I guess.
So if you execute your script as shown with double backtiks enclosed and assigning it's output to a variable, that should work, as long as the output is not full of stuff you don't need which might force to cut out what you need.

If no other script etc. is using your retrieved parameters, maybe think about putting everything together in one script and use functions inside to give it a bit structure and flexibility.

here's what caller.sh may look like.

here's what called.sh may look like.

So when you run caller.sh it outputs