Lantronix SLC 16 Lantronix SLC - User Guide - Page 109

Definitions, Primary Commands, Secondary Command, Quoted String, Variable Reference, CLI Command

Page 109 highlights

8: Devices 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 [expr 1 + 1] Control Flow commands allow conditional execution of other commands based on the results of the evaluation of a Boolean expression. Definitions 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: 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  = greater than or equal to  == equal to  != not equal to Primary Commands These are stand-alone commands which provide the primary functionality in a script. These commands may rely on one or more of the Secondary Commands to provide values for some SLC™ Console Manager User Guide 109

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8: Devices
SLC™ Console Manager User Guide
109
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.
Definitions
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
Primary Commands
These are stand-alone commands which provide the primary functionality in a script. These
commands may rely on one or more of the Secondary Commands to provide values for some