runas

run_as() {
    local uid newuid bash_argv
    read -r newuid <<< "$1"
    read -r bash_argv <<< "${BASH_ARGV[@]}"
    uid="$(id -nu)"
    if [[ "${uid}" == "root" ]]; then
        exec su - "${newuid}" -s /bin/bash -c "$0 ${bash_argv}"
    fi
}