edit file in shell code example

Example 1: linux edit file

sudo nano filename.ext

Example 2: edit file terminal

vim filename.txt

//press i to enter insert mode
//press esc to exit insert mode
type :wq then enter to leave vim

Example 3: edit a file linux

vi filename.extension

//press i to insert into file
//press ESC to enter menu
//Type :wq to save data