This command can be used to troubleshoot a specific problem and execute the command according to defined parameters, as shown below. We can take advantage of the flexibility that EOS provides us by creating our own scripts and allowing these scripts direct access from the bash to the CLI.Īnother useful command available to users is schedule, it allows you to run the command and save the result to a file.
From the bash shell, we also have access to CLI, in which we can execute any command, as shown below. To print out information we are looking for in nicely formatted output.Īccess to bash from the Arista switch will be gained by running the bash command. The first command that is very useful is the watch command, which repeats the given command at a specified interval and can additionally display the differences between individual performances.įor example, if we want to monitor CRC errors on a given interface, instead of repeating the show int x / x several times, we can use the watch command, which will run the above mentioned command automatically every 2s and display information as shown below.ĭue to the fact that EOS is built on Linux, where CLI is really an interface between the user and Linux, as a user we have easy access to the bash shell, which is why we can easily use the native available functionalities of the Linux operating system, such as egrep, awk to filter and search data streams based on defined patterns.įor example, if we want to display CRC errors information for all interfaces, we can use the following command sh int | awk '/^Ethe/ ' In this post I would like to show you some useful commands available on the Arista switches that you can use in your daily work.
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