24 / (7 - 1)  6.0   Comments  All text on a line following a semicolon is ignored.  Examples:  ; this is a comment  transmit "hello"            ; transmit the string "hello"  7.0   Keywords  Keywords specify the structure of the script. Unlike commands, they do not perform an action. The keywords are listed below.  proc name   Indicates the beginning of a procedure. All scripts must have a main procedure (proc main).