D-Link NetDefend DFL-210 User Manual page 37

2.1.5. CLI Scripts
syntax of the command is described in the CLI Reference Guide and specific examples of usage are
detailed in the following sections. See also Section 2.1.4, "The CLI" in this manual.
Executing Scripts
As mentioned above, the script -execute command launches a named script file that has been
previously uploaded to the D-Link Firewall. For example, to execute the script file my_script.sgs
which has already been uploaded, the CLI command would be:
gw-world:/> script -execute -name=my_script.sgs
Script Variables
A script file can contain any number of script variables which are called:
$1, $2, $3, $4......$n
The values substituted for these variable names are specified as a list at the end of the script -execute
command line. The number n in the variable name indicates the variable value's position in this list.
$1 comes first, $2 comes second and so on.
For example, a script called my_script.sgs is to be executed with IP address 126.12.11.01 replacing
all occurrences of $1 in the script file and the string If1 address replacing all occurrences of $2.
The file my_script.sgs contains the single CLI command line:
add IP4Address If1_ip Address=$1 Comments=$2
To run this script file after uploading, the CLI command would be:
:/> script -execute -name=my_script.sgs 126.12.11.01 "If1 address"
When the script file runs, the variable replacement would mean that the file becomes:
add IP4Address If1_ip Address=126.12.11.01 Comments="If1 address"
Error Handling
If an executing CLI script file encounters an error condition, the default behavior is for the script to
terminate. This behavior can be overridden by using the -force option. To run a script file called
my_script2.sgs in this way, the CLI command is:
gw-world:/> script -execute -name=my_script2.sgs -force
If -force is used, the script will continue to execute even if errors are returned by a command in the
script file.
Script Output
Any output from script execution will appear at the CLI console. Normally this output only consists
of any error messages that occur during execution. To see the confirmation of each command
Note: $0 is reserved
Notice that the name of the first variable is $1. The variable $0 is reserved and is
always replaced before execution by the name of the script file itself.
Chapter 2. Management and Maintenance
37