Expect script to login to multiple servers and execute commands. For example. I got the task of logging into some 300 devices, execute the following commands and then copy the output into one file. Expect is useful for running any program which requires interaction between the program and the user. Remove the "interact" statement to have the script exit when done (you could use a shell loop to execute this for a number of hosts/devices). I can use SSH as a login method and I can give a predefined username and password. Jul 7, 2022 · For my example, I’m going to use my Expect script in my Terminal to SSH into a DevNet Sandbox IOS-XR rotuer, verify the running configuration and print the output to a log file. Aug 3, 2022 · The expect script can be reused since all the information is passed as arguments, so it’s best to create alias for each one of them for quick login and save your time in typing all the parameters. May 12, 2024 · Expect is a program that talks to other interactive programs according to a script. This guide explains how you can leverage Expect scripts to log in to SSH servers, switch to superuser mode, and execute commands seamlessly. . Feb 7, 2025 · Fortunately, the Expect scripting utility offers a streamlined solution to automate this process. Bash Expect offers robust capabilities for automating user interactions with command-line applications. By learning its syntax, utilizing its commands, and following best practices in scripting, you can streamline repetitive tasks and increase productivity. I've used this to send commands routers to update static routes, but it has many other uses. If you have multiple servers then you can execute commands on multiple hosts simultaneously. mkpbx xlv jescd pzkvta bmjxzhf lhd xouhd gfp fieitkt zgylgq