Total Progress over entire bash shell script

EDIT FOR CLARITY : say I have the following script (let's posit pv and curl are already installed) : (that currently runs under ubuntu but that I plan to make POSIX-compliant so that it may run on more linux ditributions) #!/bin/bash sudo apt install vlc mkdir -p ~/.steam/compatibilitytools.d PROTONVERSIONNUMBER=$(curl -v --silent https://api.github.com/repos/popsUlfr/Proton/releases 2>&1 | grep "tag_name" | head -n 1 | cut -f4,4 -d"\"") REPLACING=$(curl -v --silent https://api.github.com/repos/popsUlfr/Proton/releases 2>&1 | grep "target_commitish" | head -n 1 | cut -f4,4 -d"\"" | sed "s/[^_]\+/\L\u&/g") PROTONVERSION=${REPLACING/_G/-6_G} PROTONNAME=$PROTONVERSION"_"${PROTONVERSIONNUMBER##*-} wget https://github.com/popsUlfr/Proton/releases/download/$PROTONVERSIONNUMBER/$PROTONNAME.tar.xz pv $PROTONNAME.tar.xz | tar xp -J -C ~/.steam/compatibilitytools.d rm $PROTONNAME.tar.xz I get three progress bars, these progress bars seem very beautiful to me : the way they're accurate and stuff, I dunno call me a weirdo QUESTION ------ How do I utilize the power of these three seperate progress bars to form one continuous progress bar that respects currents progress bar "speeds" of the underlying "true" progress bars?