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I want to check if the option is set so I can then assign the variable flnm.

But I do not know how I can do it. I expected the -z expressions to work.
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I have...

No. I fixed the -z but still getting the error. The error line it complains about is a blank line at the end of the script.

The space when calling bash was a mistake when pasting the code. I have fixed the -z problem. Small mistake when
I was trying various things to try to get things to work out.

If I put the exit before the if section, I do not get the error. And the script works when I remove the if section for options.

I would like to select a particular file by passing an option to a bash script so that I can call another
program to compile an outline of some documents I have

But I am getting an error when...