https://github.com/eudoxia0/which.git
git clone 'https://github.com/eudoxia0/which.git'
(ql:quickload :which)
The which UNIX command in Common Lisp.
CL-USER> (ql:quickload :which)
To load "which":
Load 1 ASDF system:
which
; Loading "which"
[package which]
(:WHICH)
CL-USER> (which:which "bash")
#P"/bin/bash"
CL-USER> (which:which "qooblooxbar")
NIL
Copyright (c) 2016 Fernando Borretti
Licensed under the MIT License.