Reserved s-= for my-calc-line (to avoid excessive typing of M-x my-calc-line). er/expand-region is now s-w to be near C-w/M-w.
#!/bin/bash
set -x -e
emacsdir=~/.emacs.d
compatfile=$emacsdir/.emacs-ver
mylispdir_old=$emacsdir/my
mylispdir_new=$emacsdir/mylisp
if ! [[ -f $compatfile ]]; then
echo 'Cannot detect compatibility.'
exit 1
fi
read ver <$compatfile
if [[ $ver != 1 ]]; then
echo 'Script is designed only for upgrade: v1 => v2.'
exit 1
fi
rm $mylispdir_old/init.el || :
mv $mylispdir_old $mylispdir_new || :
rm $emacsdir/.emacs-my.elc || :
echo 2 >$compatfile