atom.io package to show and open files or directories in the system file manager
A small extension which adds two new entries to the file-view context-menu and to the context-menu of the tab-view.
The first one will open the system file manager and will mark the selected file while the second option will open the file with the default system application.
Package is available on atom.io/packages
as show-in-system!
You can simple install this plugin with the atom package manager:
apm install show-in-system