List installed .NET Core SDK versions

dotnet-versions

#!/bin/sh
# Benjamin Collins <aggieben@gmail.com>
# Requires GNU readlink (get on macOS with `brew install coreutils`)
READLINK=${READLINK:-readlink}

cliPath=$(which dotnet)
netDir=$(dirname $($READLINK -f $cliPath))

ls -1 "$netDir/sdk"

dotnet-versions.cmd

REM - from http://joshua.poehls.me/powershell-batch-file-wrapper/
@ECHO OFF

SET SCRIPTNAME=%~d0%~p0%~n0.ps1
SET ARGS=%*
IF [%ARGS%] NEQ [] GOTO ESCAPE_ARGS

:POWERSHELL
PowerShell.exe -NoProfile -NonInteractive -NoLogo -ExecutionPolicy Unrestricted -Command "& { & '%SCRIPTNAME%' @args; EXIT $LASTEXITCODE }" %ARGS%
EXIT /B %ERRORLEVEL%

:ESCAPE_ARGS
SET ARGS=%ARGS:"=\"%
SET ARGS=%ARGS:`=``%
SET ARGS=%ARGS:'=`'%
SET ARGS=%ARGS:$=`$%
SET ARGS=%ARGS:{=`}%
SET ARGS=%ARGS:}=`}%
SET ARGS=%ARGS:(=`(%
SET ARGS=%ARGS:)=`)%
SET ARGS=%ARGS:,=`,%
SET ARGS=%ARGS:^%=%

GOTO POWERSHELL

dotnet-versions.ps1

<# 
.SYNOPSIS
    Lists installed versions of the .NET Core SDK.
.NOTES
    Version:        1.0
    Author:         Ben Collins <aggieben@gmail.com>
    Creation Date:  1/5/2017
#>
#$DebugPreference = "Continue"

$cliPath = Get-Command dotnet.exe | Select-Object -ExpandProperty Source
Write-Debug "Using $cliPath"

$netDir = Split-Path $cliPath
Get-ChildItem "$netDir/sdk" | Select-Object -ExpandProperty Name

It seems that he new dotnet installations on macOS don't use a link, so it fails. For macOS, this works on my machine:

cliPath=$(which dotnet)
netDir=$(dirname $cliPath)

ls -1 "$netDir/sdk"

@tiy-curtissimo: thanks for the tip. I'll get the scripts updated soon.