source: vendor/bash/3.1/examples/functions/term

#
# term -- a shell function to set the terminal type interactively or not.
#

term()
{
        local   t

        if [ $# != 0 ] ; then
                eval $(tset -sQ $1)
        else                            # interactive
                if [ -z "$TERM" ] ; then
                        TERM="unknown"
                fi

                case "$TERM" in
                        network|dialup|unknown|lat)
                                TERM=unknown
                                ;;
                        *)
                                eval $(tset -sQ)
                                ;;
                esac

                while [ "$TERM" = "unknown" ] ; do
                        echo -n "Terminal type: "
                        read t
                        if [ -n "$t" ] ; then
                                eval $(tset -sQ $t)
                        fi
                done
        fi
}