How to use quick lisp in batch mode of CLISP

Question

I could use packages installed with quick lisp: Using packages installed from quicklisp with clisp

I tried to execute the lisp code that uses packages using command line. The code is

(ql:quickload "yacc")
(use-package 'yacc)

When I tried it with clisp ex.lisp, I got this error message:

*** - READ from #<INPUT BUFFERED FILE-STREAM CHARACTER #P"ex.lisp" @2>: there
      is no package with name "QL" 

I had to use clisp < ex.lisp to load the package.

What makes the difference between the two approaches? Is clisp < ex.lisp the only way to use packages in command line?

I found this How to use quicklisp when CL program is invoked as a shell script?, but it's not for clisp.

Answer 1

Make a c.lisp that executes and exits the calculator.lisp.

(load "calculator.lisp")
;(in-package #:yacc-calculator)
(yacc-calculator:calculator)
(ext:exit)

Run clisp with -i: clisp -i c.lisp.

Reference

• Is there a command to halt the interpreter in Common Lisp?
• http://dilawarnotes.wordpress.com/2011/03/27/clisp-in-batch-mode/