Wolfram System Session Information

The Wolfram Language gives you immediate access to many details of your Wolfram System sessionin the form of symbolic expressions that can readily be manipulated by the Wolfram Language.

Names names of known symbols

?name information about symbol values, functions, etc.

Streams  ▪  Links  ▪  Notebooks  ▪  $Packages  ▪  $ContextPath  ▪  $ContextAliases

SystemInformation display system information

NotebookInformation information on open notebooks

Options  ▪  $FrontEndSession  ▪  $FrontEnd  ▪  CurrentValue

Directory  ▪  FileNames  ▪  $Path

$SessionID  ▪  $ProcessID  ▪  $Username

Time Information »

TimeUsed  ▪  SessionTime  ▪  DateString  ▪  AbsoluteTime  ▪  ...

Memory Information »

MemoryInUse  ▪  MaxMemoryUsed  ▪  MemoryAvailable  ▪  ...