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The main purpose of the script is to set some environment variables, so I MUST source it. However, the same script also manage a set of choices for these variables (i.e., it can create or remove an...

I cannot "return" from a non-sourced script

$ ./test
./test: line 2: return: can only `return' from a function or sourced script

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This is a very simple problem, I am wondering why I can find no answer anywhere...

I have a script that can be run either sourced or not. This script has some place where it needs to quit...