System Feature
	systemvar

Purpose
	Predefined (system) variables in the system

Syntax
	System variables listed below can be accessed using the $ sign. Their values can be reset
	using the set command.

	Please not that these system variables are independent of the variables that are in use by
	the operating system.

Description
	The following variables are system variables.

	Name	Type	Usage					Default value
	-------	-------	-------------------------------		-------------
	isep	str	Input Separator.			" \t\n\r"
			Each character in the value 
			of this variable is considered
			a separator character when
			parsing commands on command line,
			functions, scripts, etc.

	lsep	str	Line Separator.				"\n"
			Each character in the value
			of this variable is considered
			a separator character when
			parsing lines within a string.

	wsep	str	Word Separator.				" ,\t"
			Each character in the value
			of this variable is considered
			a separator character when
			parsing words within a line.

	indent	str	Lines within a block are		"...."
			indented by the value of
			this variable.

	path	str	A list of directories which are		"C:/Scripts"
			searched for finding scripts. This
			variable is used by script command.
			The directories may be local or on
			the internet. Directories are separated
			by the pipe (|) character.

	fexists	bool	true if a specified file exists,	false		
			false otherwise.
			Used by lf and af commands.

	fname	str	Name of a file.				""
			Used by lf and af commands.

	ftype	str	File type of a file.			""
			Used by lf and af commands.
	
	fatime	str	Latest access time of a file.		""
			Used by lf and af commands.

	fctime	str	File creation time of a file.		""
			Used by lf and af commands.

	fmtime	str	Latest modification time of a file.	""
			Used by lf and af commands.

	fsize	int	Size in bytes of a file.		""
			Used by lf and af commands.

	rprecision	int	Any time a real number is printed,	2
			it is printed in this precision or in
			these many decimal places. If a number less
			than 0 is assigned to this variable, 0 is assumed.
			If a number greater than 30 (this limit is
			processor-dependent) is assigned, 30 is assumed.

	rexponent	int	Any time a positive real number is	30
			greater than 10**(rexponent) or less than
			10**(-rexponent), it is printed in exponent
			format, such as, -1.23e+02 . Similar consideration
			is applied to a negative real number.
			If a number less than 0 is assigned to this
			variable, 0 is assumed. If a number
			greater than 30 (this limit is
			processor-dependent) is assigned, 30 is assumed.

	exitcode	int	Code from the last executed exit command.		0
			If an exit command has not been executed yet, or
			if the last executed exit command did not specify a code,
			this value is 0.

	breakcode	int	Code from the last executed break command.		0
			If a break command has not been executed yet, or
			if the last executed break command did not specify a code,
			this value is 0.

	continuecode	int	Code from the last executed continue command.		0
			If a continue command has not been executed yet, or
			if the last executed continue command did not specify a code,
			this value is 0.


		
Restrictions
	You are free to change the values of these system variables. If you do, make sure that you reset
	them back to their original values when done. These variables are used by several commands,
	and unintended values for them may produce unintended results.

Valid Examples
	set $wsep=" "

	Will make sure that only the space character is considered word separator, and tab character is not
	considered a separator character when parsing words.


Invalid Examples
	set $isep=7
	
	Will produce error. Only a str value can be assigned to a str variable, and $isep is str variable.

See Also
echo
set
constant
var
startup