if [ $commands[autojump] ]; then # check if autojump is installed
    if [ -f $HOME/.autojump/etc/profile.d/autojump.zsh ]; then # manual user-local installation
      . $HOME/.autojump/etc/profile.d/autojump.zsh
    elif [ -f $HOME/.autojump/share/autojump/autojump.zsh ]; then # another manual user-local installation
      . $HOME/.autojump/share/autojump/autojump.zsh
    elif [ -f $HOME/.nix-profile/etc/profile.d/autojump.zsh ]; then # nix installation
      . $HOME/.nix-profile/etc/profile.d/autojump.zsh
    elif [ -f /usr/share/autojump/autojump.zsh ]; then # debian and ubuntu package
      . /usr/share/autojump/autojump.zsh
    elif [ -f /etc/profile.d/autojump.zsh ]; then # manual installation
      . /etc/profile.d/autojump.zsh
    elif [ -f /etc/profile.d/autojump.sh ]; then # gentoo installation
      . /etc/profile.d/autojump.sh
    elif [ -f /usr/local/share/autojump/autojump.zsh ]; then # freebsd installation
      . /usr/local/share/autojump/autojump.zsh
    elif [ -f /opt/local/etc/profile.d/autojump.zsh ]; then # mac os x with ports
      . /opt/local/etc/profile.d/autojump.zsh

    elif [ $commands[brew] -a -f `brew --prefix`/etc/autojump.sh ]; then # mac os x with brew
      . `brew --prefix`/etc/autojump.sh

    fi
  fi