Clib.chdir()

Changes directory.

Clib.flock()

File locking.

Clib.getcwd()

Gets current working directory.

Clib.mkdir()

Makes a directory.

Clib.rmdir()

Removes a directory.

Clib.getenv()

Gets an environment string.

Clib.putenv()

Sets an environment string.

SElib.directory()

Searches directory listing for file spec.

SElib.fullPath()

Converts partial path spec to full path name.

SElib.splitFileName()

Gets directory, name, and extension parts of a file specification.