THAT="INSTALL_NO_USR FALSE"
for THIS in $THAT; do
sed -i 's/# CONFIG_$THIS is not set/CONFIG_$THIS=y/' .config-test
done
It doesn't work, yet I can do:
sed -i 's/# CONFIG_INSTALL_NO_USR is not set/CONFIG_INSTALL_NO_USR=y/' .config-test
sed -i 's/# CONFIG_FALSE is not set/CONFIG_FALSE=y/' .config-test
which both work.