[2018-06-27] bash 颜色及y or n

change the fore color of echo

.———- constant part!

vvvv vvvv– the code from above

RED=’\033[0;31m’
NC=’\033[0m’ # No Color
echo -e “I ${RED}love${NC} Stack Overflow\n”

选择Y or N

while true; do
read -p “Do you wish to install this program?” yn
case $yn in
[Yy]* ) make install; break;;
[Nn]* ) exit;;
* ) echo “Please answer yes or no.”;;
esac
done