Shulou(Shulou.com)06/02 Report--

1. Command ls-- to view the contents in the folder example: ls / opt / / check which files are in the opt directory in the root directory. Ls a * / list all files in the current directory that begin with the letter a ls- l *. Doc / / give all files ending in .doc in the current directory 2. Command cp-- to copy the file cp afile afile.bak / / copy the afile file to the current directory, by the way, the file name is afile.bakcp afile / home/bible/ copy the file afile from the current directory to the / home/bible/ directory cp * / tmp/ / copy all the unhidden files in the current directory to the / tmp/ directory cp- a docs docs.bak / / recursively copy the current directory Copy the docs directory to the current directory as the new directory docs.bak Keep file properties And copy all the files. Including hidden files beginning with a period 3, commands mv-- to move and rename files mv aflie bfile / / rename the afile in the current directory to bfilemv afile / tmp/ / move the afile in the current directory to the / tmp/ directory 4, commands rm-- to delete files and directories rm afile / / delete files afile directly enter does not delete rm * / / delete all files in the current directory (no hidden files) The rm command does not delete the directory rm-rf domed// deletes the domed directory and all the contents it contains rm-ia* / / deletes all files under the current directory that begin with the letter a, and prompts the user to confirm 5. Command cd-- to switch the directory cd ~ switch to the home directory cd / tmp to the home directory / tmpcd dir to the current directory dir directory cd / switch to the root directory cd. Switch to the next directory, cd.. Switch to the upper secondary directory cd ~ switch to the user directory, such as root user, then switch to / root 6, command mkdir-- to set up a directory mkdir create a directory (folder) mkdir directory name / create a new directory create multiple directories at one time: mkdir directory name 1 directory name 2. Create multiple nested directories at one time: mkdir-p directory name 1 / directory name 2 / directory name 3.7, command touch-- create text touch file name / / create new text file create multiple text files at one time: touch file name 1 file name 2. Note: separate multiple files with spaces. 8. Command cat-- to display the file contents cat to view the file name cat / proc/cpuinfo view CPU information cat / proc/meminfo view memory information 9, command Rm-- to delete the directory Rm- r / opt/abc delete ABC10 under opt, Command shutdown-- shutdown restart operation shutdown- h now shutdown operation poweroff (forced shutdown before 5.0min) init 0shutdown-h + minute "prompt content" delayed shutdown shutdown- h 5 "guanji" example ctrl+c cancels restart operation: shutdown- r nowrebootinit 6shutdown-r + minute delayed restart ctrl+c Shutdown-c cancels delayed operation exit exits the current command operating environment

11. User information logged in by who system

12. The list of users logged in by the system shows the commands being executed

13. Pwd displays the detailed directory address of the current directory

Note: pwd

14. Init command

Init 0 / / shutdown

Inir 6 / / restart

15. Id to view the current user

Id tom views some information about tom users.

16. Useradd tom creates tom users

17. Wget plus network software package address / / go to the network to download the software package

18. Passwd tom modifies or creates a new password

19. Umount / / Uninstall

Note: umount / mnt

20. Ls-ld / / displays the properties of the current directory

21. Clear clears the current page

22. Df-hT

Note

23. Date displays the current date and time

Turn off and open the network card

Ifconfig ethx up / / enable ethx network card

Ifconfig ethx down / / close the ethx network card

Turn off the firewall and SELinux

Permanent shutdown

Vim / etc/sysconfig/selinux

Vim / etc/selinux/config

Change SELINUX=enforcing to SELINUX=disabled

Temporarily shut down SELinux

Setenforce 0

Permanent shutdown

Systemctl disable firewalld

Temporarily Closed

Systemctl stop firewalld

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