• $InitialDirectory gives the initial directory when the current Mathematica session was started.
• $InitialDirectory returns the full name of the directory as a string.
• If Mathematica is started from a shell or command line, $InitialDirectory gives the current operating system directory.
• If Mathematica
is started from a menu or icon, $InitialDirectory
typically gives the user's home directory $HomeDirectory
• New in Version 3; modified in 5.