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shell

#system scanning test #!/bin/bash

####################菜单 while : do echo -e "\t\t\t\e[1;31m*****\e[0m\e[1;5;32m选歌系统\e[0m\e[1;31m*****\e[0m" echo -e "\t\t\e[1;31m1.随机选择歌手唱歌\e[0m" echo -e "\t\t\e[1;31m2.查看剩余歌手\e[0m" echo -e "\t\t\e[1;31m3.查看剩余歌曲\e[0m" echo -e "\t\t\e[1;31m0.退出\e[0m"

#########################提示输入

echo -n -e "\e[1;32m请输入选项:\e[0m";read cho

#########################定义数组 singers=($(cat singers.txt)) sings=($(cat sings.txt))

#########################

case "$cho" in

1)

#########################倒计时 for i in 3 2 1 do echo echo -e -n "\b$i" sleep 1 done #########################定义随机下标

n=$((RANDOM % ${#singers[@]}))
n1=$((RANDOM % ${#sings[@]}))
echo -e "下面有请歌神\e[1;32m${singers[$n]}\e[0m为我们带来一首激情四射的:\e[1;32m${sings[$n1]}\e[0m"

########################将输出的歌名和歌手名追加到两个文件里

echo ${singers[$n]} >>singer_out.txt
echo ${sings[$n1]} >>sing_out.txt

########################取消已选出来的参数

unset singers[$n]
unset sings[$n1]

########################将剩下的参数重新覆盖到文件里

echo ${singers[@]} >singers.txt
echo ${sings[@]}  >sings.txt

#######################判断歌手和歌名的文件里是否还有内容,没有的话将重新更新

if	((${#singers[@]}==0))
then 
	cat singer_out.txt >singers.txt
	>singer_out.txt
	echo -e "\e[1;5;31m歌手库已重新更新\e[0m"
fi

if	((${#sings[@]}==0))
then	
	cat sing_out.txt >sings.txt
	>sing_out.txt
	echo -e "\e[1;5;33m歌曲库已重新更新\e[0m"
fi
;;

######################查询剩余歌手

2)
echo -e "还有\e[1;5;31m${#singers[@]}\e[0m位歌手:\n\t\t\e[1;32m${singers[@]}\e[0m"
;;

#####################查询剩余歌名

3)
echo -e "还有\e[1;5;31m${#sings[@]}\e[0m首歌曲:\n\t\t\e[1;32m${sings[@]}\e[0m"
;;

0)
	exit
;;

*)
echo -e "\e[1;36m请输入正确的选项\e[0m"
;;

esac echo done

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