An optional character object specifying a path. Default is the
current directory.
Value
A data.frame with three colums for key, value and (source) type.
Not all keys return a value; in those cases an empty string is returned.
Type is one of path, sys and conf and signals how the
value was obtained.
Details
This functions returns all configuration settings which can be queried
in a data.frame object. The system-level functions sysconf,
pathconf and confstr provide all the underlying information.