BSD关机重启脚本/etc/rc.d/rc.0
BSD关机重启脚本/etc/rc.d/rc.0
#!/bin/sh
# 关闭所有程序
echo "Sending all processes the TERM signal..."
/sbin/killall5 -15
sleep 1
echo "Sending all processes the KILL signal..."
/sbin/killall5 -9
sleep 1
# 卸载swap
echo "Deactivating swap partitions..."
/sbin/swapoff -a
# 保存随想数种子
echo "Saving random seed to a temporary file..."
/bin/dd if=/dev/urandom of=/etc/random-seed count=1 bs=512 2>/dev/null
# 保存系统时钟
echo "Saving the system time to hardware clock..."
/sbin/hwclock --systohc --utc
# 卸载远程系统
echo "Unmounting remote filesystems..."
/bin/umount -a -f -tnfs
# -w参数并不会真的重开机,只是把记录写到 /var/log/wtmp 档案里
# 0级和6级这里是一个文件,通过脚本名来判断是关机还是重启,所以有了下面结构。
case "$0" in
*6)
/sbin/reboot -w
;;
*0)
/sbin/halt -w
;;
esac
# 以只读方式挂载系统
echo "Remounting root filesystem read-only..."
/bin/mount -n -o remount,ro /
#将刷新缓存,保存数据
echo "Flushing filesystem buffers..."
/bin/sync
#卸载本地文件系统
echo "Unmounting local filesystems..."
/bin/umount -a -tnonfs
# 关机
case "$0" in
*6)
echo "Please stand by while rebooting..."
/sbin/reboot -d -f -i
;;
*0)
echo "Bye..."
/sbin/halt -d -f -p
;;
esac