创建两个文件夹1,2
1文件夹里面含有两个文件a.txt和b.txt
2文件夹里面含有两个文件a.txt和b.txt
(a.txt文件内容是学号，b.txt文件内容是姓名）
功能：在菜单里面输入1：拷贝功能。会出现两个选项，1：将文件夹1中文件a拷贝至b中（不覆盖），2：将文件夹2中文件a拷贝至b中（覆盖）
显示：覆盖：Overwrite successful
不覆盖：copy successful
菜单输入2：修改文件功能。更改文件夹1中文件a.txt名字修改为arename.txt并将内容修改为operating system
显示：rename successful
菜单输入3：获取系统时间
菜单输入4：获取主机硬件信息：CPU颗数，CPU核心数量，内存，硬盘块数和大小
菜单输入5：退出
#!/bin/bash
#exam02
copy(){
cat<<EOF
---------------------------
-- copy --
-- 1.Overwrite 2.copy --
---------------------------
EOF
read -p "Input your choice:" cc
case $cc in
1)
cat ~/1/a.txt >> ~/1/b.txt
if [ $? -eq 0 ]
then
echo "Overwrite successful!"
fi
;;
2)
cp ~/1/a.txt ~/1/b.txt
if [ $? -eq 0 ]
then
echo "copy successful!"
fi
;;
esac
}
rename(){
mv ~/1/a.txt ~/1/arename.txt
echo "operating system" > ~/1/arename.txt
if [ $? -eq 0 ]
then
echo "rename successful!"
fi
}
showTime(){
echo "The time is:"
echo `date`
}
showInfo(){
echo "The number of cpu is:"
echo `cat /proc/cpuinfo | grep "physical id" | uniq | wc -l`
echo `cat /proc/cpuinfo | grep "cpu cores"`
echo "memory size:"
echo `cat /proc/meminfo | grep MemTotal`
echo "the number of disk:"
echo `lsblk | grep "sd[a-z] " | wc -l`
}
menu(){
case $choice in
1)
copy
;;
2)
rename
;;
3)
showTime
;;
4)
showInfo
;;
5)
exit 0
;;
esac
}
while :
do
cat<<EOF
-----------------------------------------
-- MENU --
-- 1.copy 2.rename --
-- 3.time 4.hardware information--
-- 5.exit --
-----------------------------------------
EOF
read -p "Input your choice:" choice
menu
done