ToString[expr] gives a string corresponding to the printed form of expr in OutputForm. ToString[expr, form] gives the string corresponding to output in the specified form.

Like everything else in Mathematica, the textual forms of expressions can themselves be represented as expressions. Textual forms that consist of one-dimensional sequences of ...

Converting between strings, boxes, and expressions. Here is a simple expression. This gives the InputForm of the expression as a string.

IntegerString[n] gives a string consisting of the decimal digits in the integer n. IntegerString[n, b] gives a string consisting of the base b digits in the integer n. ...

SymbolName[symbol] gives the name of the specified symbol.

CharacterEncoding is an option for input and output functions which specifies what raw character encoding should be used.

Run[expr_1, expr_2, ...] generates the printed form of the expressions expr_i, separated by spaces, and runs it as an external operating system command.

Mathematica has efficient systemwide 16-bit Unicode support, allowing a full range of international, technical and other character sets and character encodings.

$BatchOutput is True if output in the current session is being sent in batch mode, suitable for reading by other programs.

$NewMessage is a global variable which, if set, is applied to the symbol name and tag of messages that are requested but have not yet been defined.