Expect Script Tutorial: Expressions, If Conditions, For Loop, and While Loop Examples

“Expect scripting language is easy to learn. It expects specific
string, and sends (or responds) strings accordingly.

“If you are new to expect, read our 6 expect script examples
(including hello world example) to get a jump start.

“This article explains the following in the expect scripting
language.

* Expressions – arithmetic operation
* if construct in expect
* looping constructs

“Define Expect Variables – set command

“In expect, you can set the variable values using set command as
shown below,”

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