CLIPS scripting is (limited) possible when using the -f2 option:
#!/usr/bin/clips -f2
(printout t Hello crlf)
(progn (bind ?A (+ 23 2455)) (bind ?B (* ?A 123))
(printout t Result: ?A :: ?B crlf))
(progn (printout t Input "(type something):")
(bind ?inp (read)) (printout t you_typed: ?inp crlf))
(exit)
However, binding works only when including the commands in a progn block!
Recall: Some operating systems allow additional arguments to be specified to a program when it begins execution. When the CLIPS executable is started under such an operating system, CLIPS can be made to automatically execute a series of commands read directly from a file or to load constructs from a file. The command-line syntax for starting CLIPS and automatically reading commands or loading constructs from a file is as follows
Syntax
clips <option>*
<option> ::= -f <filename> | -f2 <filename> | -l <filename>
For the -f option, <filename> is a file that contains CLIPS commands. If the exit command is included in the file, CLIPS will halt and the user is returned to the operating system after executing the commands in the file. If an exit command is not in the file, CLIPS will enter in its interactive state after executing the commands in the file. Commands in the file should be entered exactly as they would be interactively (i.e. opening and closing parentheses must be included and a carriage return must be at the end of the command).
The -f command line option is equivalent to interactively entering a batch command as the first command to the CLIPS prompt.
The -f2 option is similar to the -f option, but is equivalent to interactively entering a batch* command. The commands stored in <filename> are immediately executed, but the commands and their return values are not displayed as they would be for a batch command. For the -l option, <filename> should be a file containing CLIPS constructs. This file will be loaded into the environment. The -l command line option is equivalent to interactively entering a load command. Files specified using the –f option are not processed until the command prompt appears, so these files will always be processed after files specified using the –f2 and –l options.