When working on the command line, quite often you will need to create or edit text files or any kind of file to edit. Two of the most powerful and popular command-line editors are Vim and Emacs. Both of them have a steep learning curve that can be intimidating to new users. For those who need a simple editor, there is nano.
GNU nano is an easy to use command line text editor for Unix and Linux operating systems. It includes all the basic functionality you’d expect from a regular text editor, like syntax highlighting, multiple buffers, search and replace with regular expression support and more.
sudo apt-get install nano
yum install nano
nano sample.text
Here is some basic nano commands might help you while editing file:
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