[junke]

I would say: don't do it. Nowadays I'd rather use Common Lisp as a glue for other scripts rather than invoking it along with other programs with shell scripts.

Plus the need for scripts diminues when you can write a function on typed objects (all scripts are parsers).

I also try to seek other IPC mechanisms when possible, such as talking to daemons through DBus or JSON-RPC depending on what is available.

edit: this story is currently on the front page of HN too, https://news.ycombinator.com/item?id=26491858 (Do not use redirection characters in your shell prompt), the neverending examples of how shell scripting makes your life miserable (sure it's helpful, but can't we have nicer things?)