shell编程--彩色打印

大多数情况下，你希望输出echo Color，比如绿色代表成功，红色代表失败，黄色代表警告。

NORMAL=$(tput sgr0)
GREEN=$(tput setaf 2; tput bold)
YELLOW=$(tput setaf 3)
RED=$(tput setaf 1)
 
function red() {
    echo -e "$RED$*$NORMAL"
}
 
function green() {
    echo -e "$GREEN$*$NORMAL"
}
 
function yellow() {
    echo -e "$YELLOW$*$NORMAL"
}
 
# To print success
green "Task has been completed"
 
# To print error
red "The configuration file does not exist"
 
# To print warning
yellow "You have to use higher version."