shell實現開機自動掛載本地YUM倉庫自動化程序，可以在沒有網絡的情況下也可以使用yum安裝程序。
#!/bin/bash
#自動搭建yum本地倉庫
#
cdrom () {
mount /dev/cdrom /media/cdrom &> /dev/null
[ $? -eq 0 ] && echo "掛載成功"
}
[ -d /media/cdrom ] || mkdir /media/cdrom
mount | grep -q /dev/sr0
if [ $? -eq 0 ]
then
umount /dev/sr0
cdrom
else
cdrom
fi
[ -d /etc/yum.repos.d/bak ] || mkdir /etc/yum.repos.d/bak
ls -l /etc/yum.repos.d/ | grep *repo > /dev/null
if [ $? -ne 0 ]
then
echo "正在移動文件到目錄下"
mv /etc/yum.repos.d/*repo bak
else
echo "文件已經移動目錄！"
fi
[ -e /etc/yum.repos.d/centos-media.repo ] || echo "[media]
name=CentOS-$releasever - Media
baseurl=file:///media/cdrom/
gpgcheck=0
enabled=1" > /etc/yum.repos.d/centos-media.repo
echo "清除yum緩存"
yum clean all &> /dev/null
echo "YUM已經搭建完成"
echo -n "共有軟件包:"
yum repolist | tail -1 | awk -F':' '{print $2}'
cat /etc/fstab | grep /dev/sr0 &> /dev/null
if [ $? -ne 0 ]
then
echo "正在寫入開機自動掛載光盤"
echo "
/dev/sr0 /media/cdrom iso9660 defaults 0 0
">> /etc/fstab
fi