File metadata:

file-info ( path -- info )

link-info ( path -- info )

file-exists? ( path -- ? )

directory? ( path/info -- ? )

regular-file? ( path/info -- ? )

symbolic-link? ( path/info -- ? )

File types:
File types

File system metadata:

file-system-info ( path -- file-system-info )

file-systems ( -- array )

File permissions:

file-readable? ( path -- ? )

file-writable? ( path -- ? )

file-executable? ( path -- ? )