ResetDirectory (Built-in Mathematica Symbol)

ResetDirectory[] resets the current working directory to its previous value.

$HomeDirectory (Built-in Mathematica Symbol)

$HomeDirectory gives your "home" directory.

ParentDirectory (Built-in Mathematica Symbol)

ParentDirectory[] gives the parent of the current working directory. ParentDirectory["dir"] gives the parent of the directory dir.

NotebookDirectory (Built-in Mathematica Symbol)

NotebookDirectory[] gives the directory of the current evaluation notebook. NotebookDirectory[nb] gives the directory for the notebook specified by nb.

CellPrint (Built-in Mathematica Symbol)

CellPrint[expr] inserts expr as a complete cell in the current notebook just below the cell being evaluated. CellPrint[{expr_1, expr_2, ...}] inserts a sequence of cells.

SetDirectory (Built-in Mathematica Symbol)

SetDirectory["dir"] sets the current working directory to dir. SetDirectory[] sets the current working directory to your "home" directory.

TracePrint (Built-in Mathematica Symbol)

TracePrint[expr] prints all expressions used in the evaluation of expr. TracePrint[expr, form] includes only those expressions which match form. TracePrint[expr, s] includes ...

DirectoryName (Built-in Mathematica Symbol)

DirectoryName["name"] extracts the directory name from the specification for a file.

PrintTemporary (Built-in Mathematica Symbol)

PrintTemporary[expr] prints expr as a temporary cell in a notebook, removing it when the evaluation of the current input line is complete.

NotebookPrint (Built-in Mathematica Symbol)

NotebookPrint[expr] sends a notebook containing expr to your default printer.NotebookPrint[notebook] sends the specified notebook to your default printer. ...