change directory using ranger

.bashrc

function ranger-cd {
    local IFS=$'\t\n'
    local tempfile="$(mktemp -t tmp.XXXXXX)"
    local ranger_cmd=(
        command
        ranger
        --cmd="map <enter> chain shell echo %d > "$tempfile"; quitall"
    )

    ${ranger_cmd[@]} "$@"
    if [[ -f "$tempfile" ]] && [[ "$(cat -- "$tempfile")" != "$(echo -n `pwd`)" ]]; then
        cd -- "$(cat "$tempfile")" || return
    fi
    command rm -f -- "$tempfile" 2>/dev/null
}

alias r=ranger-cd