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How does expect command work?
expect command or scripting language works with scripts that expect user inputs. It automates the task by providing inputs. First we write a script that will be needing inputs from users and then we will write another script using expect to automate the task.
How do you use spawn and expect?
Then start our script using spawn command. We can use spawn to run any program we want or any other interactive script….Expect Command.
| spawn | Starts a script or a program. |
|---|---|
| expect | Waits for program output. |
| send | Sends a reply to your program. |
| interact | Allows you to interact with your program. |
How does expect command work in shell script?
Expect command or expect scripting language is a language that talks with your interactive programs or scripts that require user interaction. Expect scripting language works by expecting input, then the Expect script will send the response without any user interaction.
Where do I find the expect command in Java?
The expect command path is defined in the first line which is #!/usr/bin/expect. On the second line of code, we have disabled the timeout. Then run our script using the spawn command. We can use spawn to run any interactive script or program we want. The other rows that remain are the Expect script that connects to our shell script.
Where do I put expect in my script?
The location of Expect must be included in the script. Assuming that the location of Expect on your system is /usr/bin/expect enter the following as the first line in your Expect script: The shebang (#!) Is required in order to specify Expect as the program used to interpret the script.
What does the last line in expect command mean?
The remaining lines are the Expect script that interacts with our shell script. The last line means the end of the interaction. Now Showtime, let’s run our answer bot and make sure you make it executable. Cool!!