TNS command-line cheatsheet

Command-line	Description
tns --version	This returns the version of the NativeScript command. If you are running an older version, then you can use npm to upgrade your NativeScript command like this: npm install -g nativescript.
tns create <your project name>	This creates a brand new project.The following are its parameters: --ng and --appid.
tns platform add <platform>	This adds a target platform to your project.
tns platform clean <platform>	This command is normally not needed, but if you are messing with the platform directory and your platform, you can remove and then add it back. Note that this deletes the entire platform directory. So, if you have made any specific customizations to your Android manifest or iOS Xcode project file, you should back them up before running the clean command.
tns platform update <platform>	This is actually a pretty important command.  NativeScript is still a very active project that is under a lot of development....