When Ken Thompson, Dennis Ritchie, and Joseph Ossanna started their work on the UNIX operating system way back in 1970 at Bell Labs I bet they never imagined that you would be able to run a number of the common UNIX utilities like ‘grep’ or ‘uname’ on a Cisco router running the Internetwork Operating System (IOS)!
In this video tutorial we take a deep dive look at just how you can turn your Cisco router’s IOS command line into a pseudo UNIX-like environment where you can create functions, leverage UNIX utilities and create full blown functions! We also compare and contrast the use of IOS aliases and when using a UNIX function might be a good choice. Enjoy!