for example, in apt-get upgrade, you still need to type a y after typing, and then you can apt-get-y upgrade

then, after installing lnmp, you can type. / pureftpd.sh according to pureftpd, and then press any key to install it. How to splice these two inputs into one line?

in other words, when you change the time zone, after typing tzselect, you still have to type 49 / 11. Is there any way to spell it directly into a line so that you can type it once?