Cisco 11503 Administration Guide - Page 299

Chapter 8 Using the CSS Scripting Language Syntax Errors and Script Termination Note The script overwrites the original value of the variable VALUE. You can use the BOR operator in a similar manner. The mechanics of AND and OR logical operations is beyond the scope of this document. Syntax Errors and Script Termination You can create complex scripts using the CSS Scripting Language. During the development of a script, you may encounter a few syntax errors. When a script exits because of a syntax error, the CLI indicates the script line number and the script text where the syntax error occurred. The CLI also allows you to exit from a script and specify the exit value (zero or non-zero) using the exit script command. This lets you know exactly why a script failed. You can then use this information to initiate a decision process to handle the error condition. Syntax Errors When you play a script that contains a misspelled command, an unknown command, or a failed command, the script displays a syntax error on the screen. The error message contains the number and the text of the line in the script that caused the failure. The CSS software sets the STATUS variable to the appropriate error code (a non-zero value). For example, enter: Error in script playback in line: 1 >>>eco "Hello" ^ %% Invalid input detected at '^' marker. Script Playback cancelled. If a script issues a command that returns a non-zero STATUS code, this will also result in a syntax error. For example, if you play a script that issues a socket connect command and the host refuses the connection or there is a host name resolution failure, the script terminates with a syntax error. OL-5647-02 Cisco Content Services Switch Administration Guide 8-31