The command can be used with one or multiple arguments that will be concatenated to a string. This string will be converted to MD5 hash and printed to the console.
If no arguments are provided, the command will prompt the user to enter a string. The string is hidden with '*'. Press enter to confirm the string and print the MD5 hash to the console. (The '\n' character is not included in the hash and the string can't contains '\n' characters.)