- echo "if [ ! -f $TERMUX_PREFIX/opt/texlive/2016/install-tl -a ! -f $TERMUX_PREFIX/opt/texlive/2017/install-tl ]; then exit 0; else echo 'Removing residual files from old version of TeX Live for Termux'; fi" >> preinst
- echo "rm -rf $TERMUX_PREFIX/etc/profile.d/texlive.sh" >> preinst
- echo "rm -rf $TERMUX_PREFIX/opt/texlive/2016" >> preinst
- # Let's not delete the previous texmf-dist so that people who have installed a full distribution won't need to download everything again
- echo "shopt -s extglob" >> preinst # !(texmf-dist) is an extended glob which is turned off in scripts
- echo "rm -rf $TERMUX_PREFIX/opt/texlive/2017/!(texmf-dist)" >> preinst
- echo "shopt -u extglob" >> preinst # disable extglob again just in case