SHELL

cmd list dotnet frameworks installed

# CMD:
# List SDKs:
dotnet --list-sdks

# List Runtimes:
dotnet --list-runtimes

# List .NET frameworks: 
reg query "HKLMSOFTWAREMicrosoftNet Framework SetupNDP" /s
# List .NET frameworks > version 4: 
reg query "HKLMSOFTWAREMicrosoftNet Framework SetupNDPv4" /s

list installed dotnet versions

# CMD:
# List SDKs:
dotnet --list-sdks

# List Runtimes:
dotnet --list-runtimes

dotnet list all packages

 dotnet list package

list of package versions dotnet

dotnet list <FileName>.sln package

Response:
Top-level Package                   Requested   Resolved
   > <package name>           6.*         6.0.1