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Linux基本命令(一)

时间:2019-08-01

linux常用命令_常用linux命令_linux常用shell命令

####1、虚拟机控制####

[kiosk@foundation0 Desktop]$ rht-vmctl start desktop	##开启desktop虚拟机
Error: desktop not started (is already running) 	##报错,desktop已经运行
[kiosk@foundation0 Desktop]$ rht-vmctl view  desktop	##显示desktop
[kiosk@foundation0 Desktop]$ rht-vmctl poweroff desktop ##关闭dekstop
Powering off desktop.. 
[kiosk@foundation0 Desktop]$ rht-vmctl start desktop 	##开启desktop
Starting desktop.
[kiosk@foundation0 Desktop]$ rht-vmctl view desktop 
[kiosk@foundation0 Desktop]$ rht-vmctl poweroff desktop 
Powering off desktop..
[kiosk@foundation0 Desktop]$ rht-vmctl view desktop 
Error: unable to view desktop - not currently running.	##虚拟机没开启无法显示
[kiosk@foundation0 Desktop]$ rht-vmctl reset desktop 	##当虚拟机出现故障,reset表示重置
Are you sure you want to reset desktop? (y/n) y 	##询问是否重置y表示yes
Resetting desktop. 					##正在重置
Powering off desktop...

####2、系统登录####

##图形化界面登录##

##文本登录##

####3、虚拟控制台切换####

Ctrl+Alt+F(1|7)%20				##进入图形
Ctrl+Alt+F(2~6)%20				##进入虚拟控制台

####4、用户级别####

##普通用户登陆
zxc普通用户,密码zxcvbnm
##超级用户登陆
->not%20listed%20					##点击未列出
username%20					##提示输入用户名称
->root%20						##root为系统超级用户
passwd%20						##提示输入密码
->redhat%20					##redhat是超级用户密码

####5、用户切换####

[zxc@localhost%20~]$%20su%20-%20root			##切换root用户
Password:%20					##输入密码,密码不显示
[root@localhost%20~]				##切换成功
##高级用户切换到低级用户不需要密码,低级用户切换到高级或者平级用户的切换需要密码
gnome-session-quit%20--force%20			##注销用户%20--force强制注销,不询问

####6、date命令####

[zxc@localhost%20~]$%20date					##输出当前时间
Sun%20Dec%2024%2008:36:43%20EST%202017
[root@localhost%20~]#%20date%201111111111			##设置系统时间
Fri%20Nov%2011%2011:11:00%20EST%202011
[root@localhost%20~]#%20date%20-d%2056day%20			##56天之后的日期
Fri%20Jan%20%206%2011:11:41%20EST%202012
[root@localhost%20~]#%20date%20+%Y%20				##按照年输出
2011
[root@localhost%20~]#%20date%20+%Y/%m/%d			##按照格式输出
2011/11/11
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