Passing Command-line Arguments

It is sometimes useful to pass values to your script when it is started. You do this by placing a question mark after the script name and appending a list of values. For example, change a link to your script from

<a href="myscript.dsb">Run Script</a>

to

<a href="myscript.dsb?arguments">Run Script</a>

In the script, you can retrieve the arguments text using the expression

env("Query String")

If the argument text contains more than one value, use the tolist primitive to parse it into individual argument values. For example, if you start a script with the command

myscript.dsb?23&45&67

then

tolist(env("Query String"),"&")

will produce the list [23,45,67]. Each of the list elements is a text string instead of a number. If you want to convert input argument text to numeric values, use tonumber.

Note:  Never use eval to convert argument text to numbers because this creates a security flaw. If your script contains a statement such as eval(env("Query String")) users can get your script to execute any command they wish simply by calling it with the command as an argument value.