$InputFileName (Built-in Mathematica Symbol)

$InputFileName is a global variable whose value is the absolute file name of the input file from which input to Mathematica is currently being sought.

$Input (Built-in Mathematica Symbol)

$Input is a global variable whose value is the name of the stream from which input to Mathematica is currently being sought.

$MachineName (Built-in Mathematica Symbol)

$MachineName is a string that gives the assigned name of the computer on which Mathematica is being run, if such a name is defined.

$Packages (Built-in Mathematica Symbol)

$Packages gives a list of the contexts corresponding to all packages which have been loaded in your current Mathematica session.

$SessionID (Built-in Mathematica Symbol)

$SessionID is a number set up to be unique to a particular Mathematica session.

Developing an Export Converter (Mathematica Tutorial)

Mathematica 8 provides functions that allow developers to implement file format converters to be integrated with the Mathematica Import and Export framework. You can ...

Patterns (Mathematica Overview)

Introduction Finding Expressions That Match a Pattern Naming Pieces of Patterns

Random Number Generation (Mathematica Overview)

Introduction Random Generation Functions Seeding and Localization

Working with String Patterns (Mathematica Overview)

Introduction General String Patterns Regular Expressions

MTensor_free (Mathematica LibraryLink C Function)

void MTensor_free () is a library callback function that frees an MTensor.