[Linux]学习笔记第一篇——安装
环境:CentOS6.3 minimal
www.zhishiwu.com
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1、下载
镜像地址:http://mirrors.stuhome.net/centos/6.3/isos/x86_64/
CentOS-6.3-x86_64-netinstall.iso
CentOS-6.3-x86_64-minimal.iso
CentOS-6.3-x86_64-bin-DVD1.iso
CentOS-6.3-x86_64-bin-DVD2.iso
CentOS-6.3-x86_64-LiveCD.iso
CentOS-6.3-x86_64-LiveDVD.iso
2、安装 www.zhishiwu.com
安装环境:Oracle VM VirtualBox 4.2.6
3、注销、关机和重启
注销
$ logout
$ Ctrl + D
关机
$ poweroff
重启
$ reboot
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注:shutdown命令可以关闭所有程序,依照用户的需要,重新启动或关机。
1、立即关机:-h 参数让系统立即关机。范例如下:
$ shutdown –h now ← 要求系统立即关机
2、指定关机时间:time 参数可指定关机的时间,或设置多久时间后运行shutdown命令,范例如下: www.zhishiwu.com
$ shutdown now ← 立刻关机
$ shutdown +5 ← 5分钟后关机
$ shutdown 10:30 ← 在10:30时关机
3、关机后自动重启:-r 参数设置关机后重新启动。范例如下:
$ shutdown -r now ← 立刻关闭系统并重启
$ shutdown -r 23:59 ← 指定在23:59时重启动
Usage: shutdown [OPTION]... TIME [MESSAGE]
Bring the system down.
Options:
-r reboot after shutdown
-h halt or power off after shutdown
-H halt after shutdown (implies -h)
-P power off after shutdown (implies -h)
-c cancel a running shutdown
-k only send warnings, don't shutdown
-q, --quiet reduce output to errors only
-v, --verbose increase output to include informational messages
--help display this help and exit
--version output version information and exit
TIME may have different formats, the most common is simply the word 'now' which
will bring the system down immediately. Other valid formats are +m, where m is
the number of minutes to wait until shutting down and hh:mm which specifies the
time on the 24hr clock.