touch
Create an empty file or update its modification date
What it does
touch creates an empty file if there is none. If the file exists, its contents stay as they are and only the modification date changes.
Most often touch is a quick way to create a file you will open in an editor next. You can list several names at once: touch index.html style.css.
Syntax
touch <file>…Examples
Create an empty file index.html
touch index.htmltouch— create a file or update its timestampindex.html— file name