File Editing

Text-based editor

Here are two commonly used text editors.

nano/pico, is an intuitive, i.e. less complex, text editor. The most commonly used commands, like "Exit" ("Ctrl"+"x"), are listed at the bottom of the editor. To start editing a file, e.g. named as "myfile.txt", just type$ nano myfile.txtin the terminal.
vim (http://www.vim.org\) is a more-advanced and powerful, yet more complex, text editor. It takes time to get familiar with the controls, hence you are recommended to learn it in your spare time.

sublime(https://www.sublimetext.com), is a fancy and useful gui text editors. It contains syntax highlighting, useful extension and clear layout. Good for programming, if you are not usingvim