Summary of linux commands-Multi-operation is the truth, linux ---

Summary of linux commands-Multi-operation is the truth, linux ---

Ps: Actually, to learn the linux system, contact us more about the Windows system we are using, so that we can get twice the result with half the effort;

1. Start, shut down, log on, and log out commands

[Login]: Logon

[Logout]: logout

[Shutdown]: stops the system.

[Halt]: stops the system.

[Reboot]: restart

[Poweroff]: power off

[Sync]: Write the content in the memory to the disk.

[Lilo]: Install lilo to start the hypervisor.

[Grub]: Install lilo to start the hypervisor.

2. Shell commands

[Chsh]: Switch Shell

[History]: displays the command resume.

[Alias]: set command alias

[Unalias]: cancels the command alias

[Which]: display the command location

[Type]: query command types

[Echo]: Display string or variable content

[Set]: set/Display Shell Variables

[Printenv]: Display Environment Variables

[Export]: Set Environment Variables

[Env]: Set temporary environment variables

[Unset]: Release Environment Variables

[Setenv]: Set Environment Variables

[Unsetenv]: releases environment variables.

[Source]: The command in the execution File

[Man]: query command Manual

[Info]: Query hypertext command Manual

[Whatis]: Display command Introduction

[Apropos]: keyword query manual

3. User management commands

[Su]: switch to another user

[Useradd]: append user

[Adduser]: append user

[Userdel]: deletes a user.

[Usermod]: Modify user settings

[Chfn]: modifies user private information.

[Groupadd]: append Group

[Groupdel]: deletes a group.

[Groupmod]: Modify group settings

[Passwd]: change the password

[Whoami]: displays the user name

[Logname]: displays the logon User Account

[Users]: displays information about all logon users.

[Who]: Query login user information

[W]: Query login user information

[Id]: displays the ID of a specified user

[Groups]: displays the group to which the specified user belongs.

[Finger]: displays the personal information of a specified user.

[Mesg]: Switch to send and receive messages from others

[Write]: send messages to other users

[Wall]: send messages to all users

[Talk]: chat with other users

V. File Operation commands

[Ls]: displays the file list.

[Tree]: displays the directory tree.

[Pwd]: displays the current path

[Cd]: change the current path

[Pushd]: append path to directory Stack

[Popd]: deletes a path from the directory stack.

[Dirs]: displays the contents of the Directory stack.

[Mkdir]: create a path

[Rmdir]: delete path

[Cp]: copy a file/directory

[Rm]: delete a file/directory

[Mv]: Move the file/directory and modify the file name.

[Chown]: Change the owner of a file/directory.

[Chgrp]: modifies all groups of files/directories.

[Chmod]: Modify file/directory permissions

[Touch]: Change the file time

[Ln]: create a file/directory Link

[Find]: find Files

[Whereis]: displays the path name of the file.

[File]: Query file types

[Size]: query the file size

6. File editing commands

[Cat]: displays the File Content

[Tee]: output to files and screens

[More]: displays the file content on a split screen.

[Less]: displays the file content on a split screen.

[Head]: displays the content of the file header.

[Tail]: displays the content at the end of a file.

[Fold]: fold and show long rows

[Sort]: arrange the rows of files.

[Cmp]: Compare file content

[Diff]: display file differences

[Nkf]: Change the Japanese file encoding

[Dd]: copy the changed File

[Wc]: count the number of text words, file size, etc.

[Split]: split the file

[Paste]: Connecting files in rows

[Join]: Connecting files with Fields

[Grep]: query text

[Uniq]: Filter duplicate parts to display file content

[Tr]: Replace text

[Sed]: Replace text

[Vi]: vi Text Editor

VII. Compression/Decompression commands

[Tar]: Compressed/decompressed files (archive-used with gzip & gunzip)

[Compress]: compression/decompression of Files

[Uncompress]: Extract

[Gzip]: Compressed/decompressed files (commonly used)

[Gunzip]: Decompress (commonly used)

[Zcat]: displays the compressed file content.

[Lha]: compressing/extracting files

[Uuencode]: encodes a binary file into a text file.

[Uudecode]: Restores an encoded text file to a binary file.

8. MS-DOS tool set

[Mdir]: displays the file list.

[Mcd]: change the current directory

[Mmd]: create a directory

[Mrd]: delete a directory

[Mdeltree]: deletes a directory tree.

[Mcopy]: copy an object

[Mdel]: delete an object

[Mmove]: Move a file

[Mren]: Change the file or directory name

[Mattrib]: modifying file attributes

[Mtype]: displays the file content.

[Mdu]: query the file or directory size

[Minfo]: Displays disk information.

[Mformat]: Format disk in MS-DOS

[Mlabel]: Set disk labels.

9. commands for controlling external devices

[Mount]: mount the device

[Umount]: detaches a mounted device.

[Eject]: pop-up (CD/DVD, etc)

[Fdformat]: format a floppy disk.

[Fdisk]: Configure/display Hard Disk Partitions

[Mkfs]: Format Disk Partitions

[Fsck]: Check/fix disk errors

[Lpr]: print to printer

[Lprm]: interrupts the print task.

[Lpq]: displays the status of the print task.

[Lpc]: Manage/control print tasks

[Ifconfig]: Display/set NIC Configuration

10. Process and task management commands

[Ps]: displays running processes.

[Jobs]: displays Tasks running in the background.

[Fg]: Switch the task to the foreground

[Bg]: Switch the task to the background

[Kill]: abort a process or task

[Killall]: abort a process or task

[Wait]: waits for the end of a process or task.

[At]: Set scheduled task execution

[Atq]: displays unexecuted tasks

[Atrm]: deletes a scheduled task.

[Batch]: executes a task when the system load is reduced.

[Nice]: Change Priority and execute tasks

[Nohup]: executes tasks in the background and does not exit after Logout.

[Sleep]: sleep for a certain period of time

[Crond]: The command used to regularly execute the program

[Screen]: The Window Manager of a physical terminal can be reused among multiple processes.

11. network management commands

[Netstat]: displays the current network connection status.

[Route]: Display/set routes

[Host]: displays network host information

[Hostname]: displays/sets the name of the current host.

[Ping]: confirm the connection with the remote machine

[Traceroute]: displays route information.

[Rwho]: Query login users of online machines

[Ruptime]: query the system running time of online machines

[Rlogin]: log on to a remote machine

[Telnet]: use telnet to log on to a remote machine.

[Rsh]: send commands to remote machines

[Rcp]: copying files between remote machines

[Mail]: receive mail

[Sendmail]: send an email

[Mailq]: confirm the mail queue

[Ftp]: Transfers files using ftp

12. Other commands

[Cal]: Display calendar

[Clear]: clear screen

[Gcc]: compile C language code

[As]: Assembly

[Bc]: Computing

[Rpm]: Redhat package management

[Dpkg]: Debain package management

Ps: Actually, to learn the linux system, contact us more about the Windows system we are using, so that we can get twice the result with half the effort;