[procedure] accessible? path access-mode more-mode ...

[syntax] access-mode mode-name

Scheme48: checks if path can be accessed w.r.t. access-mode. Access-mode is constructed by access-mode syntax from a symbol 'read, 'write, 'execute or 'exists.

Gauche has sys-access which is a direct interface to POSIX access(). Many implementations have separate predicates for each access mode, e.g. file-exists?, file-readable?, file-is-readable?, file-read-access?, etc.