Learn more about .NET Core at https://aka.ms/dotnet-docs . Use dotnet --help to see available commands or go to https://aka.ms/dotnet-cli-docs.
The .NET Core tools collect usage data in order to improve your experience. The data is anonymous and does not include command-line arguments. The data is collected by Microsoft and shared with the community. You can opt out of telemetry by setting a DOTNET_CLI_TELEMETRY_OPTOUT environment variable to 1 using your favorite shell. You can read more about .NET Core tools telemetry at https://aka.ms/dotnet-cli-telemetry.
A command is run in the end of install process to initially populate your local package cache, to improve restore speed and enable offline access. This command will take up to a minute to complete and will only happen once.