Linux Cloud Automation Operations Basics 2 (Basic operation of the system)

1. Switch users
   : Enter su-username at the command prompt Note: Advanced users switch to low-level users do not require a password, low-level users need a password to switch identities. 650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/M02/9C/29/wKiom1ls1w7Rbo-zAABScUOGXlw877.png-wh_500x0-wm_ 3-wmp_4-s_229062140.png "title=" screenshot from 2017-07-17 23-09-20.png "alt=" Wkiom1ls1w7rbo-zaabscuogxlw877.png-wh _50 "/>

   Note: There is no echo of the password here.

   
   

   2. Virtual Console: Ctrl+alt+f (1|7) into graphics
   Ctrl+alt+f (2~6) into the Virtual Console
   Red hat Enterprise Linux Server 7.0 (Maipo) # #系统版本
   Kernel 3.10.0-123.el7.x86_64 on a x86_64 # #内核版本, number of system bits

   
   

   3. Virtual Console #####
   Ctrl+alt+f (1|7) into the graph
   Ctrl+alt+f (2~6) into the Virtual Console

   
   4.ctrl +c # #撤销命名的执行
   Gnome-session-quit--force # # #注销用户--force forced logoff, do not ask
   Working interface conversion: ctrl+alt+ |

   
   5. Start Bash
   Applications>utilities>terminal
   right mouse button----->open in terminal
   Gnome-terminal
   Ctrl+shift+n # #在新窗口中打开shell
   Ctrl+shift+t # #同一个窗口中打开新的tab650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M01/9C/2A/ Wkiol1ls177jtlnxaadu8hngikg281.png-wh_500x0-wm_3-wmp_4-s_2914280110.png "title=" Screenshot from 2017-07-17 23-10-36.png "alt=" Wkiol1ls177jtlnxaadu8hngikg281.png-wh_50 "/>

   Create a bash in a new window, and create a shell in the original window.
   

   
   6. Exit: Exit | Ctrl+d

   650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M02/9C/2A/wKiom1ls2ECSqOF4AAAbnt2SkiI419.png-wh_500x0-wm_ 3-wmp_4-s_3758945865.png "title=" screenshot from 2017-07-17 23-12-25.png "alt=" Wkiom1ls2ecsqof4aaabnt2skii419.png-wh_50 "/>

   Exit here, the identity is returned from the normal user to the superuser (that is, the normal user identity is a sub-process of superuser identity), exit again to end this process.

   
   7. Lock Screen
   CTRL + Alt +l # #在rhel7.0
   Win key + L # #在rhel7.2
   
   8. The table key in the system can automatically complement the existing command, the file name and the parameters of some commands
   A+tab x2 shows all commands in a system.
   9. Around # #一个字符一个字符移动
   CTRL + Around # #一个字一个字移动
   CTRL + A # #光标移动到行首
   + E # #光标移动到行尾
   + U # #光标所在位置删除到行首
   + k # #光标所在位置删除到行尾
   + r+ keyword # #调出最近一条含有关键字的命令
   + C # #撤销以输入的命令
   + D # #关闭当前环境
   + L # #清空屏幕
   + SHIFT + C # #复制
   + SHIFT + V # #粘贴
   + SHIFT + t # #在现有shell中重新打开一个table
   + SHIFT + N # #在shell中打开一个新的shell
   + SHIFT + Pageup|pagedown # #切换table
   + ALT + L # # Lock Screen
   + ALT + top | down # #切换工作界面
   + ALT + F1|f7 # #进入图形界面
   + ALT + F2-f6 # #进入虚拟控制台
   
   

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Linux Cloud Automation Fundamentals 2 (Basic operation of the system)