Follow these steps.
1.npx react-native init AwesomeProject // To create project
npx react-native init AwesomeProject --version 0.62.2 //create project with specific version
2.cd AwesomeProject // reach root folder or project folder
3.npx react-native start // to load all script
4.npx react-native run-android // to run this project
-----------------------NOTE--------------------------------------------
1.npx react-native init AwesomeProject --version 0.62.2,
2."AwesomeProject " its project name u can change as per ur requirement.