Owners manual

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