The -S option is optional. The -i option allows the user to send commands saved in a file. The -v option causes the names of the files that are being retrieved to be printed. Sending commands arc4gl reads user input, constructs commands, and sends these to the server.
Input is entered in a template-like format using keywords and values.
A set of quick rules for required and optional keyword combinations, as well as a complete table of keyword values is presented in the so-called arc4gl quick guide .