The dotnet-install scripts are used for automation and non-admin installs of the SDK and Runtime. You can download the script from https://dot.net/v1/dotnet-install.sh.

wget https://dot.net/v1/dotnet-install.sh

sudo chmod +x ./dotnet-install.sh

./dotnet-install.sh --version latest --runtime aspnetcore --channel 7.0 --install-dir /usr/shared/dotnet

export DOTNET_ROOT=/usr/share/dotnet

export PATH=$PATH:/usr/share/dotnet