Lantronix SLC 8000 manual Interface Script Syntax, Senduser Password, Set myvar expr 1 +

8: Device Ports

Interface Script Syntax

This section describes the abbreviated scripting syntax for Interface Scripts. This limited syntax was created to prevent the creation of scripts containing potentially harmful commands. Script commands are divided into three groups: Primary, Secondary and Control Flow. Primary commands provide the basic functionality of a script and are generally the first element on a line of a script, as in:

send_user "Password:"

Secondary commands provide support for the primary commands and are generally not useful by themselves. For example, the expr command can be used to generate a value for a set command.

set <my_var> [expr 1 + 1]

Control Flow commands allow conditional execution of other commands based on the results of the evaluation of a Boolean expression.

	Table 8-16 Definitions
Term	Definition
Word	A contiguous group of characters delimited on either side by spaces. Not enclosed
	by double quotes.
Primary Command	One of the primary commands listed in this section.
Secondary Command	One of the secondary commands defined in this section.
Quoted String	A group of characters enclosed by double quote (") characters. A quoted string
	may include any characters, including space characters. If a double quote
	character is to be included in a quoted string it must be preceded (escaped) by a
	backslash character ('\').
Variable Reference	A word (as defined above) preceded by a dollar sign character ('$').
CLI Command	A quoted string containing a valid CLI show command.
Arithmetic Operator	A single character representing a simple arithmetic operation. The character may
	be one of the following:
	 A plus sign (+) representing addition
	 A minus sign (-) representing subtraction
	 An asterisk sign (*) representing multiplication
	 A forward slash (/) representing division
	 A percent sign (%) representing a modulus
Boolean Expression	An expression which evaluates to TRUE or FALSE. A Boolean expression has the
	following syntax:
	<value> <Boolean operator> <value>
	Each can be either a word or a variable reference.
Boolean Operator	A binary operator which expresses a comparison between two operands and
	evaluates to TRUE or FALSE. The following Boolean operators are valid:
	 '<' less than
	 '>' greater than
	 '<=' less than or equal to
	 '>=' greater than or equal to
	 '==' equal to
	 '!=' not equal to

SLC™ 8000 Advanced Console Manager User Guide 140