Q. What macros can be used as command-line arguments in command-line probes?

A. The macros you can pass to a command-line probe are:

${ADDRESS} -- The IP address of the device
${PORT} -- The port of the device
${MESSAGE} -- The message as configured for the notifier
${STRIPPED_MESSAGE} -- Same as ${MESSAGE}, but with newlines, carriage returns, single quotes, and double quotes stripped.
${ESCAPED_MESSAGE} -- Same as ${MESSAGE}, but escaped as though it were a URL.