Linux Operations Command Some commands that developers need to master

1, man view Help

2, command--help simple Help

3. Help CD view some of the built-in commands for the Linux command line

4. CP Paste Copy command EG:CP yum.log/root/

5, Find/-name "Yum.log" Find the location of the file

6. Touch File name creation file

7. mkdir Create Directory

8, MV yum.log/usr/local/cut (move) file Yum.log to/usr/local/directory

9, RM yum.log Delete command (less)

You can create a file that uses the MV command to recycle files specifically

10, > file Empty file

11. ps-ef|grep DD Viewing process

12, kill-9 26833 kill process 26833

13. Cat FileName View File contents

14, grep (-N) text file name in xx file find xx text-n means how many lines

15, Vim filename-n Edit the file nth line

16, Tar ZCVF demo.tar.gz package the file into demo.tar.gz if you package all the files in the current directory.

17, free-m view memory server remaining memory is the last value of the second row

18, top shows which program in the current server consumes more CPU or memory

19, IP A view the current IP address

20, Chown User (group) belong (main) group

Useradd Boy

Chown Boy.boy boyedu

Rwxr-xr-x

RWX r-x R-x

User User Group Other

7 5 5

4+2+1 4+1 4+1

R Read 4

W Write 2

x Excute Execution 1

-0

777

Rwxrwxrw

Root root Other

Linux Operations Command Some commands that developers need to master