Directories & Directory Operations
Directory — current kernel directory
SetDirectory — set the current kernel directory
NotebookDirectory — current notebook directory
ResetDirectory ▪ DirectoryStack
Directory Names »
ParentDirectory — the parent of a directory
DirectoryName — pick out the directory part from a full file name
FileNameJoin — assemble a file name from a list of parts
FileNameSplit ▪ FileNameDepth ▪ ...
DirectoryQ — test whether a name corresponds to an existing directory
Directory Operations
CreateDirectory ▪ RenameDirectory ▪ CopyDirectory ▪ DeleteDirectory
User File Directories
$UserDocumentsDirectory — default directory for saving notebooks
$WolframDocumentsDirectory — default directory for kernel file output
$HomeDirectory — user's home directory
$UserBaseDirectory — default base directory for user-specific add-on files
$Path — list of directories to search for files
System File Directories
$InitialDirectory — initial directory when the Wolfram System was started
$BaseDirectory — default base directory for systemwide add-on files
$InstallationDirectory — root of directories for Wolfram System installation files
$RootDirectory — file system root directory
$TemporaryDirectory — system temporary directory