Question

Which option modifier tells a program not to exit with an error if it does not recognize the option, but instead to issue a warning?

a) --safe
b) --ignore-error
c) --no-exit
d) --warn-only

Answer 1

The option modifier that allows a program to issue warnings instead of exiting with an error upon unrecognizable options is (d) --warn-only.

Step-by-step explanation:

The option modifier that tells a program not to exit with an error if it does not recognize the option, but instead to issue a warning, is (d) --warn-only. This modifier is used in command line programs and scripts to provide flexibility in the way options are handled. When --warn-only is used, the program will continue to run even if it encounters an unknown option, but it will provide a warning message to inform the user that an unrecognized option was found. This allows for better debugging and user feedback without stopping the execution of the program.