Install the latest dotnet LTS and STS SDK and remove the old ones

dotnet-install.sh

#!/usr/bin/env bash
dotnet_root=$HOME/.dotnet

# installs dotnet sdk in a non-admin path
# requires shell config to work

# FOR EXAMPLE in ~/.zshenv
#
# #dotnet
# export DOTNET_ROOT="$HOME/.dotnet"
#
# # dotnet core global tools
# # check for /etc/paths.d/dotnet and /etc/paths.d/dotnet-cli-tools
# export PATH="$PATH:$DOTNET_ROOT:$DOTNET_ROOT/tools"
# # disable dotnet sdk telemetry
# # https://learn.microsoft.com/en-us/dotnet/core/tools/telemetry#how-to-opt-out
# export DOTNET_CLI_TELEMETRY_OPTOUT=true

echo "Removing old dotnet runtimes and sdks."
declare -a dirs=(host metadata templates sdk sdk-manifests shares packs)

for d in "${dirs[@]}"; 
    do
        rm -fr "${dotnet_root:?}/${d}"
    done

rm "${dotnet_root:?}/dotnet"

echo ""
echo "Installing dotnet LTS sdk."
curl -LsSf https://dot.net/v1/dotnet-install.sh|bash /dev/stdin --channel LTS

echo ""
echo "Installing dotnet STS sdk."
curl -LsSf https://dot.net/v1/dotnet-install.sh|bash /dev/stdin --channel STS

echo ""
echo "Done."