This isn't completely accurate. *LOAD-TRUENAME* is overwritten when you (load) other code files, so it doesn't let you reliably get the original script name. This difference is detectable in general scripting languages such as Ruby:
> * Andrew Pennebaker <firstname.lastname@example.org> [2012-11-20 09:39:02 -0500]:
> Many CL's offer a way to retrieve the Lisp script name, but CLISP
> appears to silently drop this information.
The file is loaded normally, through the function LOAD (in
particular, the name of the script file, which is $0 in /bin/sh, can
be found in *LOAD-TRUENAME* and *LOAD-PATHNAME*).
Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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