一、echo命令(带参数-e)

cat color.sh

#!/bin/bash

echo -e "\033[30m black \033[0m"

echo -e "\033[31m red \033[0m"

echo -e "\033[32m green \033[0m"

echo -e "\033[33m yellow \033[0m"

echo -e "\033[34m blue \033[0m"

echo -e "\033[35m purple \033[0m"

echo -e "\033[36m cyan \033[0m"

echo -e "\033[37m white \033[0m"

二、printf命令

cat color2.sh

#!/bin/bash

printf "\033[30m black \033[0m\n"

printf "\033[31m red \033[0m\n"

printf "\033[32m green \033[0m\n"

printf "\033[33m yellow \033[0m\n"

printf "\033[34m blue \033[0m\n"

printf "\033[35m purple \033[0m\n"

printf "\033[36m cyan \033[0m\n"

printf "\033[37m white \033[0m\n"

三、使用变量

cat color3.sh

#!/bin/bash

blackcolor='\E[1;30m'

redcolor='\E[1;31m'

greencolor='\E[1;32m'

yellowcolor='\E[1;33m'

bluecolor='\E[1;34m'

purplecolor='\E[1;35m'

cyancolor='\E[1;36m'

whitecolor='\E[1;37m'

echo -e "${blackcolor}black"

echo -e "${redcolor}red"

echo -e "${greencolor}green"

echo -e "${yellowcolor}yellow"

echo -e "${bluecolor}blue"

echo -e "${purplecolor}purple"

echo -e "${cyancolor}cyan"

echo -e "${whitecolor}white"