The API already allow to specify the list of exit codes to be considered successful when executing a command, but it's not possible to set it from the CLI.
Moreover the API doesn't have an easy way to consider any exit code as successful.
Add an option to the CLI to ignore the exit codes of the executed command(s), this can be useful when running troubleshooting commands like grep and such, but might be risky in the general case, so adding also a warning when using it.