Avaya Writing Technician Interface Scripts Manuel d'utilisateur télécharger pdf (Page 30)

Writing Technician Interface Scripts

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• To convert and format text, and save the result in a speciﬁed variable for later

use, use the

sprintf command.

• To evaluate a simple arithmetical or logical expression and assign the result to

a given variable, use the

let command.

The

let command evaluates an expression from left to right (default). You can

use parentheses to change the order of the evaluation.

• To write a list of command line arguments into a pseudo-variable array, use

the

arrayenv command.

You can append arguments to the end of an existing variable array with the

-a

option. If an argument contains spaces, place double quotes (“”) around it (for

example,

“enclose this one”).

• To assign a sequence of values to a list of variable names, use the

enumenv

command. You must indicate a starting number and optionally you can

specify a value by which to increment the values in the series. You can use the

sequence you have created as named indices of an array variable. Primarily,

you use this command with the

arrayenv command to index the values

created by that command.

Deleting Variables

To delete one or more variables from the local or global environment variable

table, use the

unsetenv command. For example, if you enter

unsetenv a

the system deletes variable a from the table.

You cannot delete a variable from the system environment variable table.

You can delete all variables that are part of a pseudo-variable array by using the

wildcard character *. For example, to delete all variables that begin with

array_,

enter the following command:

unsetenv array_*

For speciﬁc instructions on using the unsetenv command, see Chapter 2.

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Avaya Writing Technician Interface Scripts Manuel d'utilisateur Page 30