Executing a shell command from Common Lisp

Question

How can i execute a shell (bash) command within a Common Lisp program and assign the output to a variable?

Answer 1

You can consider using Trivial-shell (url)

(trivial-shell:shell-command "echo foo")

shell-command returns output, so you can assign it to a variable.

In asdf.lisp file you can read:

;;;; We probably should move this functionality to its own system and deprecate

;;;; use of it from the asdf package. However, this would break unspecified

;;;; existing software, so until a clear alternative exists, we can't deprecate

;;;; it, and even after it's been deprecated, we will support it for a few

;;;; years so everyone has time to migrate away from it. -- fare 2009-12-01