LINENO                  Line Number of Executing Expression
OS.type                 Detect the Operating System Type
basename2               Manipulate File Paths
check.path              Check 'this.path()' is Functioning Correctly
ext                     File Extensions
here                    Construct Path to File, Starting With Script's
                        Directory
path.functions          Constructs Path Functions Similar to
                        'this.path()'
path.join               Construct Path to File
path.split              Split File Path Into Individual Components
relpath                 Make a Path Relative to Another
set.gui.path            Declare GUI's Active Document
set.jupyter.path        Declare Executing 'Jupyter' Notebook's Filename
shFILE                  Get 'FILE' Provided to R by a Shell
this.path               Determine Script's Filename
this.path-package       Get Script's Path
try.this.path           Attempt to Determine Script's Filename
wrap.source             Implement 'this.path()' For Arbitrary
                        'source()'-Like Functions
