[centos@ip-172-31-26-91 sotest]$ dotnet --info
    .NET Command Line Tools (2.0.3)

    Product Information:
     Version:            2.0.3
     Commit SHA-1 hash:  eb1d5ee318

    Runtime Environment:
     OS Name:     centos
     OS Version:  7
     OS Platform: Linux
     RID:         centos.7-x64
     Base Path:   /usr/share/dotnet/sdk/2.0.3/

    Microsoft .NET Core Shared Framework Host

      Version  : 2.0.3
      Build    : a9190d4a75f4a982ae4b4fa8d1a24526566c69df

    [centos@ip-172-31-26-91 sotest]$ dotnet add package JWT --version 3.1.1
      Writing /tmp/tmpJPEBf5.tmp
    info : Adding PackageReference for package 'JWT' into project '/home/centos/sotest/sotest.csproj'.
    log  : Restoring packages for /home/centos/sotest/sotest.csproj...
    info :   GET https://api.nuget.org/v3-flatcontainer/jwt/index.json
    info :   OK https://api.nuget.org/v3-flatcontainer/jwt/index.json 393ms
    info :   GET https://api.nuget.org/v3-flatcontainer/jwt/3.1.1/jwt.3.1.1.nupkg
    info :   OK https://api.nuget.org/v3-flatcontainer/jwt/3.1.1/jwt.3.1.1.nupkg 374ms
    log  : Installing JWT 3.1.1.
    info : Package 'JWT' is compatible with all the specified frameworks in project '/home/centos/sotest/sotest.csproj'.
    info : PackageReference for package 'JWT' version '3.1.1' added to file '/home/centos/sotest/sotest.csproj'.
    [centos@ip-172-31-26-91 sotest]$