Merge pull request dotnet#827 from leecow/master

additional tar install details

release-notes/2.0/2.0.0-known-issues.md

@@ -25,11 +25,17 @@ Changes in the .NET Core CLI first run behavior need to be executed in locations
 If the user does not have permissions to the dotnet directory when attempting to run a dotnet command for the first time a number of permissions errors will result.
 
 ```bash
-mkdir -p ~/dotnet && tar zxf dotnet.tar.gz -C ~/dotnet
+mkdir -p $HOME/dotnet && tar zxf dotnet.tar.gz -C $HOME/dotnet
 export PATH=$PATH:$HOME/dotnet
 ```
 
-You can edit ~/bashrc to permanantly place dotnet on the path.
+The above command will place `~/dotnet` on the path only for the terminal session in which it was run. You can edit your shell profile to permanently place `~/dotnet` on the path. There are a number of different shells available for Linux and each has a different profile. For example:
+
+* Bash Shell: ~/.bash_profile, ~/.bashrc
+* Korn Shell: ~/.kshrc or .profile
+* Z Shell: ~/.zshrc or .zprofile
+
+Edit the appropriate source file for you shell and either add `:$HOME/dotnet` to the end of the exiting PATH statement or, if no PATH statment is included, add a new line with `export PATH=$PATH:$HOME/dotnet`.
 
 More info: [dotnet/docs/issues/2790](https://github.com/dotnet/docs/issues/2790) and [dotnet/cli/issues/7203](https://github.com/dotnet/cli/issues/7203)