#!/usr/bin/expect to automate Linux commands ?

 #!/usr/bin/expect

spawn some_command   # Replace some_command with the command you want to automate

expect "ExpectedPrompt"   # Replace ExpectedPrompt with the prompt you expect

send "your_input\r"   # Replace your_input with the input you want to provide

interact   # Allows you to interact with the spawned process manually if needed

chmod 777 example.exp 

./example.exp

example.: 

#!/usr/bin/expect

spawn su - goldengate

expect "Password: \r"

send "your_password\r"

expect eof    # wait for spawn processes to finish

\r :- carriage return simulate "Enter" 

\e or \x1B :- for escape key

Ctrl-a : - control plus a 

[root@localhost ~]# cat send.sh

#!/bin/bash

 

 

expect<<!!

spawn vim ./file02.txt

expect "insert mode:\r"

send "i\r"

expect "type some content:\r"

send "I am living in Pune.\r"

expect "save exit\r"

send "\x1B"

send ":wq\r"

expect eof

!!