The executable generated from `dotnet publish -r linux-x64` doesn't have "x" permission

Related issues:

• https://github.com/NuGet/Home/issues/4424#issuecomment-307479450
• https://github.com/dotnet/cli/issues/6286

Repro steps:

• Install this CLI on a Linux VM(mine was Ubuntu 16.04 LTS): https://dotnetcli.azureedge.net/dotnet/Sdk/2.0.0-preview2-006391/dotnet-sdk-2.0.0-preview2-006391-linux-x64.tar.gz
• mkdir testconsole
• cd testconsole
• Add a NuGet.config with the following content:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 <packageSources>
   <clear />
   <add key="DotNetCore" value="https://dotnet.myget.org/F/dotnet-core/api/v3/index.json" />
   <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
 </packageSources>
</configuration>

• dotnet new console
• Open the testconsole.csproj file and add the property <RuntimeIdentifier>linux-x64</RuntimeIdentifier> and save the file
• dotnet restore
• dotnet publish -r linux-x64
• cd to the published directory
• Run ./testconsole

Expected: Hello World!

Actual: bash: ./testconsole: Permission denied

cc @steveharter @gkhanna79

[steveharter]

I can confirm the repro steps (Ubuntu 14)

The workarounds for now:

• Manually perform a chmod +x testconsole or
• Run via dotnet testconsole.dll instead of testconsole directly

I’ll start working on the fix.

[sayhicoelho]

• Manually perform a chmod +x testconsole

@steveharter fixed my issue! thank you!