标签：echo printf linux functions
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"
执行结果:
bash color.sh
black
red
green
yellow
blue
purple
cyan
white
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"
执行结果:
bash color2.sh
black
red
green
yellow
blue
purple
cyan
white
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"
执行结果:
bash color3.sh
black
red
green
yellow
blue
purple
cyan
white
四、系统函数
cat color4.sh
#!/bin/bash
blackcolor="echo -en \\033[1;30m"
redcolor="echo -en \\033[1;31m"
greencolor="echo -en \\033[1;32m"
yellowcolor="echo -en \\033[1;33m"
bluecolor="echo -en \\033[1;34m"
purplecolor="echo -en \\033[1;35m"
cyancolor="echo -en \\033[1;36m"
whitecolor="echo -en \\033[1;37m"
echo black && ${blackcolor}
echo red && ${redcolor}
echo green && ${greencolor}
echo yellow && ${yellowcolor}
echo blue && ${bluecolor}
echo purple && ${purplecolor}
echo cyan && ${cyancolor}
echo white && ${whitecolor}
执行结果:
bash color4.sh
black
red
green
yellow
blue
purple
cyan
white本文出自 “7928217” 博客，请务必保留此出处http://7938217.blog.51cto.com/7928217/1651807
标签：echo printf linux functions
原文地址：http://7938217.blog.51cto.com/7928217/1651807
