"In this post, we'll be using the Ubuntu OS, which is very
popular with first-time Linux users. However, do note that this
tutorial can be aptly modified and applied to other Gnome based
distros, like Fedora Gnome, Linux Mint Gnome etc.
"Click twice once to open
"If you'd rather have your files and folders open in a single
click, fire up any Nautilus window (like your Home folder under
Places). Now, go to Edit > Preferences and hit the Behavior tab.
Here, you'll find the option to have your items opened in single