#!/bin/bsah
if [ "$UID" != "0" ];then //用系统变量$UID来判断用户身份是不是root
echo "You are not a root user" //如果不是退出脚本
exit 1
fi
echo "You are not a root user" //如果不是退出脚本
exit 1
fi
ls /dev/sr0 &>/dev/null //查看光驱是否存在
if [ $? -ne 0 ];then //如果不存在退出脚本
echo "You have no CD-ROM"
exit 2
fi
if [ $? -ne 0 ];then //如果不存在退出脚本
echo "You have no CD-ROM"
exit 2
fi
fdisk -l /dev/sr0 | grep "Disk" &>/dev/null //查看光驱中是否有光盘
if [ $? -ne 0 ] ;then //如果没有退出脚本
echo "You have no disk"
exit 3
fi
if [ $? -ne 0 ] ;then //如果没有退出脚本
echo "You have no disk"
exit 3
fi
df -T | grep "iso9660" &>/dev/null //查看光盘有没有被光驱自动挂载
if [ "$?" == "0" ];then //如果被自动挂载就卸载
umount /dev/sr0
fi
if [ "$?" == "0" ];then //如果被自动挂载就卸载
umount /dev/sr0
fi
if [ ! -d /yum ];then //检查挂载目录有没有创建
mkdir -p /yum //如果没有就创建
fi
mkdir -p /yum //如果没有就创建
fi
grep "^/dev/sr0" /etc/fstab | grep "/yum" &>/dev/null //查看/etc/fstab有没有开机自动挂载的条目
if [ $? -ne 0 ];then //如果没有就追加
echo -e "/dev/sr0\t/yum\tiso9660\tdefaults\t0 0" >>/etc/fstab
fi
if [ $? -ne 0 ];then //如果没有就追加
echo -e "/dev/sr0\t/yum\tiso9660\tdefaults\t0 0" >>/etc/fstab
fi
mount -a &>/dev/null //测试自动挂载
if [ $? -ne 0 ];then //查看挂载是否成功
echo "Mount error ! Please check." //如果失败就退出
exit 5
fi
echo "Mount error ! Please check." //如果失败就退出
exit 5
fi
ls /yum | grep "repodata" &>/dev/null //检查挂载的光盘是否为Linux光盘
if [ "$?" != "0" ];then //如果不是就退出
echo "You don‘t have a linux disk"
exit 6
fi
if [ "$?" != "0" ];then //如果不是就退出
echo "You don‘t have a linux disk"
exit 6
fi
piece="/etc/yum.repos.d/" //定义变量
bakpiece="/etc/yum.repos.d/bak/"
mkdir -p ${bakpiece} //创建备份文件夹
mv ${piece}*.repo ${bakpiece} &>/dev/null //将旧的配置文件全部移动到备份文件夹
newyum=yum_`date +%F_%T`.repo
touch ${piece}${newyum} //创建新的yum仓库配置文件
bakpiece="/etc/yum.repos.d/bak/"
mkdir -p ${bakpiece} //创建备份文件夹
mv ${piece}*.repo ${bakpiece} &>/dev/null //将旧的配置文件全部移动到备份文件夹
newyum=yum_`date +%F_%T`.repo
touch ${piece}${newyum} //创建新的yum仓库配置文件
echo "[yumrepo]" >${piece}${newyum} //编写简单的配置文件
echo "name=myyum" >>${piece}${newyum}
echo "baseurl=file:///yum" >>${piece}${newyum}
echo "gpgcheck=0" >>${piece}${newyum}
echo "name=myyum" >>${piece}${newyum}
echo "baseurl=file:///yum" >>${piece}${newyum}
echo "gpgcheck=0" >>${piece}${newyum}
(LANG=en_US.UTF-8;yum repolist all | grep "myyum" | grep -q "enabled") //检查yum是否配置完成
if [ $? -ne 0 ];then //如果失败就退出
cat <<-EOF
Please check your option
EOF
exit 7
else
echo "Yum repo is ready"
fi
if [ $? -ne 0 ];then //如果失败就退出
cat <<-EOF
Please check your option
EOF
exit 7
else
echo "Yum repo is ready"
fi