Extract filename UNIX all in one

extract () {

    if [ -f $1 ] ; then

        case $1 in

            *.tar.bz2)  tar xvjf $1 && cd $(basename "$1" .tar.bz2);;

            *.tar.gz)   tar xvzf $1 && cd $(basename "$1" .tar.gz);;

            *.tar.xz)   tar Jxvf $1 && cd $(basename "$1" .tar.xz);;

            *.bz2)      bunzip2 $1 && cd $(basename "$1" /bz2);;

            *.rar)      unrar x $1 && cd $(basename "$1" .rar);;

            *.gz)       gunzip $1 && cd $(basename "$1" .gz);;

            *.tar)      tar xvf $1 && cd $(basename "$1" .tar);;

            *.tbz2)     tar xvjf $1 && cd $(basename "$1" .tbz2);;

            *.tgz)      tar xvzf $1 && cd $(basename "$1" .tgz);;

            *.zip)      unzip $1 && cd $(basename "$1" .zip);;

            *.Z)        uncompress $1 && cd $(basename "$1" .Z);;

            *.7z)       7z x $1 && cd $(basename "$1" .7z);;

            *)          echo "don't know how to extract '$1'...";;

        esac

    else

        echo "'$1' is not a valid file!"

    fi

}