Avaya Writing Technician Interface Scripts Manual do Utilizador descarregar pdf (Página 47)

Command Reference

114089 Rev. A 2-13

The backslash character (\) allows you to continue a command line on the

following physical line. When used in this way, the backslash is referred to as a

line continuation character. The line continuation character makes it easier for

you to read the script ﬁle. The maximum command line size is still restricted to

255 characters. The following example shows an

if command using the backslash

character:

if $num = 1 then ; \

echo “The number is 1”;

We recommend that you indent the additional commands to make the script ﬁle

easier to read. Also, if there is a large amount of code following the

if command,

use a

goto command to branch around the conditional code, as shown in the

following example.

if $num !=1 then ; goto :IF_10:

echo “the number is 1”;

:IF_10:

The following script shows how the if command is used to pass parameters into

the script ﬁle.

echo “Number of parameters entered on run line: $#”

let index = 1

:LOOP:

if $index > $# then; goto :LOOP_END:

echo “Parameter $index: ${[$index]}”

let index = $index + 1

goto :LOOP:

:LOOP_END:

To test whether a variable is deﬁned, use the if command with the following

syntax:

if $?

<variable_name>

where 1=deﬁned.

For example, the following script tests whether variable

a has been deﬁned:

setenv a 5

if $?a=1 then; \

echo “Defined”

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Avaya Writing Technician Interface Scripts Manual do Utilizador Página 47