Cisco 11503 Administration Guide - Page 298

Bitwise Logical Operators Chapter 8 Using the CSS Scripting Language Using the SCRIPT_PLAY Function To call a script from another script, use the SCRIPT_PLAY function. The syntax is: function SCRIPT_PLAY call "ScriptName arg1 arg2..." When you use the SCRIPT_PLAY function, use caution when dealing with the exit script command. For details on exiting from a script, see "Exiting a Script Within Another Script" later in this chapter. Bitwise Logical Operators The CSS Scripting Language provides two operations for bit manipulation that apply only to numeric values. The bitwise logical operators are: • BAND - Bitwise AND operation • BOR - Bitwise OR operation You can manipulate the bits of a numeric variable using the modify command. For example, if you have a numeric value of 13 and want to find out if the second and fourth bits of the number are turned on (value of 1), you can do so using a bitwise AND operation as follows: 00001101 (13) AND 00001010 (10) Result is 00001000 (8) Notice that the fourth bit is common between the values 13 and 10, so the resulting value contains only the common bits. To script this, do the following: set VALUE "13" modify VALUE "BAND" "10" echo "Value is ${VALUE}" The output is: Value is 8 8-30 Cisco Content Services Switch Administration Guide OL-5647-02