Using The Increment And Decrement Operators - Cisco 11503 - CSS Content Services Switch Administration Manual

Chapter 8 Using the CSS Scripting Language
Using Variables

Using the Increment and Decrement Operators

The scripting language provides two operators for incrementing and decrementing
variable values. The increment operator "++" adds 1 to the variable value and the
decrement operator "--" subtracts 1 from the variable value. Use these operators
with the modify command.
For example, enter:
set MyVar "1"
echo "Variable is set to ${MyVar}."
modify MyVar "++"
echo "Variable is set to ${MyVar}."
modify MyVar "--"
echo "Variable is set to ${MyVar}."
The output is:
Variable is set to 1.
Variable is set to 2.
Variable is set to 1.
These two operators make it possible to add or subtract a value without having to
type an addition modification command. So you can replace:
modify MyVar "+" 1
With:
modify MyVar "++"
Both the increment and the decrement operators work only with integer variables.
Note
If you use them with character variables, such as "CSS11506", an error occurs.
Cisco Content Services Switch Administration Guide
8-12
OL-5647-02