--- layout: page author: Alessandro Luini category-page: advanced category-title: Advanced commands tags: echo print text title: echo previous-page: pages/cmd/advanced/diff.html next-page: pages/cmd/advanced/emacs.html --- In computing, echo is a command in Unix operating systems that outputs the strings it is being passed as arguments.
It is a command typically used to output status text to the screen or a computer file, or as a source part of a pipeline.
To use this simple command just type "echo" with the topic we want to print. The computer will return your argument as a string
echo "hello world"
    hello world