Open source compression software with extremely high compression ratio.

Apache server performance testing tool

Instructs the printing system to accept print jobs destined for the specified destination printer

A text search tool that is easier to use than grep

An upgraded version of ack, written in C language, faster and more user-friendly

Define or display an alias.

Apache server front-end control tool

Package management tool under Alpine Linux

Find string in whatis database

APT package management tool in Debian Linux distribution

Managing package keys in Debian Linux systems

Tool for sorting package index files under Debian Linux

Software package management tools in Debian Linux system

Create or modify a backup file, or extract files from a backup file

Displays the hardware architecture type of the current host

Used to create and manage .arj compressed packages

The arp command is used to display and modify IP to MAC translation tables

Collect free ARP information

Test the network by sending ARP protocol packets

Manage ARP packet filtering rule table

Monitor ARP records on the network

assembly language compiler

Execute a task at a specified time

Tools for monitoring Linux system resources and processes

List the current user's at task list

Delete the specified task in the pending task queue

Programming language for text and data processing

Multi-threaded download tool

Find corrupted blocks on disk

base64 encode/decode files or standard input and output

Print the base name of a directory or file

Execute scheduled tasks when the system is not busy

Arithmetic operations precision arithmetic tools

Move foreground terminal jobs to run in the background

Display or set keyboard keys and their associated functions

Check the file system type, LABEL, UUID and other information of the block device

Calling the block device control program from the command line

Show details for a given module

End the for, while or until loop.

Execute bash built-in commands.

Can decompress compressed files in .bz2 format.

Command is used to interrupt the FTP connection and end the program

Without decompressing, directly view the specified .bz2 file

Compare files in two compressed packages

Directly compare the differences between files in two .bz2 compressed packages

Use regular expressions to search for files in .bz2 compressed packages

Compress files into bz2 format

Recover files in damaged .bz2 compressed packages

Enhanced .bz2 compressed package viewer

View the contents of a bzip2-compressed text file

Display the current calendar or the calendar for a specified date

Cancel an existing print job

Concatenate multiple files and print to standard output.

Switch the user's current working directory.

Disc burning function command under Linux system

Modify the validity period of account and password

Used to change file attributes

Modify the security context of an object (file)

Used to change the information displayed by the finger command

Used to change the group to which a file or directory belongs

Check or set various services of the system

Used to change the permissions of a file or directory

Used to change the owner or group of a file or directory

Tool for updating user passwords in batches

Change the root directory to the specified destination directory

Used to change the shell used when logging into the system

Check if the CRC of the file is correct

Clear any information on the current screen terminal

Used to adjust RTC time

Detect the time difference between two Linux hosts

Compare two files for any differences

Filter control characters

Delete specified columns from file

Format output file by columns

Compare two sorted files line by line.

Call and execute the specified command

Compress data files using Lempress-Ziv encoding

Output the connected terminal type

End this loop and continue executing the next for, while or until loop.

Convert old quota files to new format

Copy a source file or directory to a destination file or directory

Utility program used to create and restore backup files

Create YUM warehouse

Submit and manage users' tasks that need to be performed periodically

Split a large file into smaller fragments

Used to connect to another system host

Stop specified printer

Start the specified printer

File transfer tool that works from the command line using URL rules

Concatenate files and print to the standard output device

Display or set system time and date

arbitrary precision calculator

Copy files and convert and format the contents of the original files

Declare variables and set or display their values and properties.

Analyze dependencies of loadable modules

Display disk related information

Dynamically obtain or release IP addresses

Run DHCP server

Relaying DHCP and BOOTP requests can be provided using the dhcrelay command

Compares the differences between two given files

Compare the differences between 3 files

A bar chart showing the output of the diff command

Domain name query tool

Set the color used by the ls command when displaying directories or files

Remove non-directory parts of filenames

Display directory stack.

Removes the job from the current shell.

Display Linux system startup information

Get information about hardware under Linux system

A new generation of RPM package manager

Domain name that defines the FQDN name in the DNS system

Containerization technology that packages an application and its dependencies into a portable container so that it can run in different environments

Display and set the system's NIS domain name

Convert DOS format text files to Unix format

Software package management tools under Debian Linux

Create and manage a redirect list in Debian Linux

Ask questions before installing packages in Debian Linux

Query tool for software packages in Debian Linux

Reconfigure an already installed software package in Debian Linux

Split large software packages into small packages in Debian Linux

Overriding file ownership and mode in Debian Linux

Package triggers under Debian Linux

Install, create and manage software packages on Debian Linux systems

Display and clear the contents of the directory stack

General system resource statistics tool

Shows disk space usage for each file and directory

Used to back up ext2 or ext3 file systems

Used to check the integrity of the second extended file system

Set the volume label of the second extended file system

Output the specified string or variable

Single line plain text editor

Used to edit disk quotas for specified users or workgroups

Find the specified string in the file

Used to exit removable equipment

WWW browser with plain text interface

Plain text mail client program

Powerful full-screen text editor

Enable or disable shell builtins

Display environment variables that already exist in the system

Display or modify the configuration information of the Ethernet card

Start the ex editing mode of vim editor

Call and execute the specified command

Exit the current shell.

Convert file's tab characters to whitespace characters

Set export attributes for shell variables or functions.

Manage NFS shared file system list

An expression calculation tool

The return status is failure.

Display the commands in the history list or modify the specified history command and execute it.

View disk usage and disk partitions

Move background jobs to the foreground terminal to run

Search a file for a text string

The string is converted into "characters and characters".

Used to detect the type of a given file

Find files in the specified directory

Tag or UUID lookup file system

Used to find and display user information

New firewall software on Linux, a tool similar to iptables

A better shell than bash

After reading the file, optimize the processing and output

Control the screen width occupied by file content when output

fping checks whether the host exists

Show memory usage

The fsck (English spelling: file system check) command checks and attempts to repair errors in the file system

Used to set file system related functions

Display the number of users currently logged in via FTP

Shut down the FTP server at the specified time

Connection status of proftpd server

Display information about each current ftp session

Identify a process using a file or file structure

C/C++ based compiler

Tools for testing program code coverage

Powerful program debugger

Get details of Linux kernel modules

Displays the current SELinux application mode, whether to force, execute or disable

Query a namespace in a DNS name server

Query the Boolean values of each rule in the SElinux policy

It is currently the most advanced distributed version control system in the world.

Management tool for workgroup files under Linux

Tools for signing, checking, encrypting or decrypting

Provides mouse event handling in text mode

Powerful text search tool

Used to create a new workgroup

Used to delete the specified workgroup

Manage members of the user's primary group

Change group ID or name

Prints the name of the group to which the specified user belongs.

Used to verify the integrity of group files

The projection password used to open the group

Projection password used to close the group

Command line shell tool for multi-boot program grub

Generate grub.cfg configuration file.

Set the system default startup kernel

Used to decompress files

Used to compress executable files

Used to compress files

Shut down the running Linux operating system

hcitool is a Linux command line tool for managing and debugging Bluetooth devices. It can be used to scan surrounding Bluetooth devices, connect to Bluetooth devices to send commands and data packets, etc.

Display and set hard disk parameters

Display the beginning of the file.

This command is a bash built-in command and is used to display help information for bash built-in commands.

Show file hexadecimal format

Display or operate the history list.

Commonly used analytical domain name query tools

Displays the hexadecimal numeric identifier of the current host.

Display and set the system's hostname

Query or change the system hostname

Test network and host security

Apache server built-in tools

[Non-internal command] An interactive process viewer that can dynamically observe system process status

apache server creates password authentication file

Display and set hardware clock

Convert file encoding

Print real and valid user and group information

Set network interface parameters in Linux

Configure and display network parameters of Linux system network card

Disable specified network interface

Statistics network interface traffic status

A real-time traffic monitoring tool

Activate the specified network interface

Format source files in C language

Help command in info format under Linux

The init process is the parent process of all Linux processes

Asynchronous file system monitoring mechanism

Load the given module into the kernel

Install or upgrade software or back up data

Monitor system input and output device and CPU usage

Tools for monitoring disk I/O usage

Network configuration tool

Restore ip6tables table

Save ip6tables table configuration

Firewall software in linux

Simple IP address calculator

Delete a message queue, semaphore set, or shared memory identifier

Analyzing message queue shared memory and semaphores

Network performance testing tools

Restore the configuration of the iptables table

Back up iptables table configuration

Commonly used firewall software on Linux

Monitor network card traffic in real time

Display the working status of iptables

Manage iSCSI connections

Check the file for spelling errors

Editor mainly used for editing code

Displays the status of the job.

Powerful plain text editor

Concatenate lines with the same content in specified fields in two files

Retrieving systemd logs is a tool only available in CentOS 7.

A flexible and lightweight command line JSON processor

whois client service

Print the current major version number of the kernel

Boot from the currently running kernel to a new kernel

Send a signal to the process.

Kill a group of processes using their name

List information about current and past users who have logged into the system

List information about users who failed to log in to the system

Display the latest login information of all users in the system

Concatenate object files into executable programs

Dynamic link library management commands

Print a list of shared libraries that a program or library file depends on

Split screen to flip up and down pages to browse file contents

Simple calculator that performs arithmetic expressions.

Excellent file client program

Call the lftp command to download the specified file

Compress or decompress lzh format files

Install the core and load the boot management program

Used to create links to files

Display network status of Linux system

Define local variables within the function.

A file search tool that is easier to use than find

Record corresponding entries in the system log

Log in to the system or switch user identities

Print the name of the current terminal login user.

Exit the currently logged in shell

System log rotation, compression and deletion

Save the output of the command to the specified log file

Customizable and pluggable log monitoring system

Display any line in the file that begins with the specified string

Setting up and controlling loop devices

Print a file or modify a queued print job

Configure printers and classes in the CUPS suite

Command line printer control program

Display status information for print jobs in the print queue

Send the file to the specified printer for printing

Delete a print job from the print queue

Display status information of printers in CUPS

Show directory contents list

View the second extended file system attribute of a file

Show release version information

List block device information

Display information about the CPU architecture

Show modules loaded into the system

Display a list of all files currently open on the Linux system `lsof -p pid`

Display all PCI bus information of the current host

Display the USB device list information of this machine

Used to track the process calling library functions

Logical volumes used to create LVM

Show logical volume properties

Extend logical volume space

Shrink logical volume space

Delete the specified LVM logical volume

Adjust logical volume space size

Scan logical volumes

Text-only web browser

Send and receive emails from the command line

Display the queue of emails to be sent

Show the status of incoming mail

GNU engineering compilation tools

View help for commands in Linux

Reads lines from standard input and assigns them to an array.

Tool program for calculating and verifying file message digests

Set write permissions for the current terminal

Tools for configuring network device negotiation methods

Can create a boot disk for the current system

Tools for generating self-signed certificates

used to create directories

Create "etc2/etc3" file system on disk partition

Used to create a Linux file system on the device

Create an image file to be loaded into the ramdisk

Create ISO 9660 image file

Create character device files and block device files

Create and set up SWAP swap partition

Create temporary files for use by shell scripts

Mode testing tools in DRM/KMS driver libdrm

Automatically handle loadable modules

Display file contents, one screen at a time

Used to mount files outside the Linux system

Display the status of each available CPU

Show commands supported by mtools

`mtr` combines the functions of `traceroute` and `ping` programs and is a simple network diagnostic tool

Used to rename files or directories

MySQL server client tools

MySQL server management client

MySQL database backup tool

Import data into MySQL server using command line

Display database related information in MySQL

Use the named-checkzone command to check and convert the zone file validity. The zone name and zone file name must be specified.

Character terminal text editor

nc is the swiss army knife of networking tools

Is an enhanced FTP tool

Tool to display system information with release logo

Network traffic monitoring tool under the terminal

View network system status information in Linux

Used for batch processing to create multiple commands at once

List the working status of NFS clients and servers

Convenient packet matching and display tool

Adjust the priority level of program execution

Display the domain name of the host NIS

Add line numbers to each file.

Display the symbol table of a binary object file

Network detection and security audit

Address configuration tool

Run the program to ignore pending signals

Deny user login to the system

Prints the number of available processor units.

Tool for querying domain name DNS information

Set date and time using Network Timing Protocol (NTP)

Centrally manage various services of the system

Show binary file information

Output the bytes encoded in octal, hexadecimal and other formats of the file

Powerful Secure Sockets Layer cryptographic library

The default package manager used in Arch Linux systems and their derivatives

Disk partitioning and partition resizing tools

Reread partitions without rebooting

Used to allow users to change their passwords

Merge multiple files into column queues

Install patches for open source software

Check for non-portable parts of the file

perl language interpreter

PF firewall configuration commands

Find and list qualified process IDs (PIDs) in the currently running process based on the information given by the user

PHP language command line interface

Powerful full-screen text editor

Find the process ID number of the process with the specified name

Monitor the system resource usage of processes

Can be used to decompress files, an upgraded version of gzip's parallel implementation

Test network connectivity between hosts (ipv4)

Test network connectivity between hosts (ipv6)

A package manager in the Python programming language for installing and managing third-party Python modules

Execute commands as other users

You can kill a process by its name

Reports the memory mapping relationship of a process

Removes a directory from the directory stack.

Shut down the Linux system. The shutdown record will be written to the /var/log/wtmp log file.

Close ppp connection

Convert text files into a format suitable for printing

Format and output the results.

Convert GNU-C code to ANSI-C code

Show process information

Report the current system process status

Batch management execution

Display stack traces for each process

Show the derivation relationship between processes in the form of a tree diagram

Adds the directory to the top of the directory stack.

Display the progress information of the command currently executed on the command line, pipeline viewer

Modify physical volume attributes

Detect consistency of LVM metadata of physical volumes

Initialize physical hard disk partition into physical volume

Display the properties of a physical volume

Delete an existing physical volume

Output physical volume information report

Scan the physical volume list of all hard drives in the system

Used to verify the integrity of the content and format of system certification files

The projection password used to enable the user

Displays the absolute path of the current working directory.

Used to display the current working directory of the specified process

The projection password used to turn off the user

Display disk used space and limits

Check disk usage and limits

Turn off the disk quota function of the specified file system in the Linux kernel

Activate the disk quota function of the specified file system in the Linux kernel

Run-level service configuration tool under Debian Linux

Makes file copying between two Linux hosts easier

Read variable value from keyboard

Used to display information about elf format files

Mark a shell variable or function as read-only

Restart the running Linux operating system

Instructs the printing system to reject print jobs destined for the specified destination printer

Change file names in batches using string replacement

Modify the scheduling priority of a running process

Synchronize yum repository to local directory

Report format to output disk space limit status

Command to set the size of the terminal window

The operation performed is opposite to the dump instruction.

Restore the security context of a file

Exit from the function and return a value.

Output the file contents in reverse order of characters

Remotely execute commands under Linux system

Log in to the remote Linux host from the current terminal

Used to delete given files and directories

Used to delete empty directories

Removes the specified kernel module from the running kernel

Display and set the static routing table in Linux

RPM package management tool

Convert RPM package to cpio format file

Create RPM binary packages and source packages

Initialize and rebuild the RPM database

Query software package information from RPM database

Signature management tools using RPM packages

Verify correctness of installed RPM packages

Connect to the remote host and execute commands

Remote data synchronization tool

Print the running level of the current Linux system

System running status statistics tool

Encrypted copy of files between local host and remote host

Used for command line terminal switching

Log all operations of a terminal session

Replay all actions of a terminal session

Powerful streaming text editor

Query how many related rules the SELinux policy provides

Security context query and modification of default directory

Famous email servers

Print numbers starting from the first digit to the last digit in the specified increment

Utilities for controlling system services

Query the rule details of the SELinux policy

Display or set shell properties and shell variables

Set file access control list

Tools for querying and configuring PCI devices

Modify the Boolean values of various rules in the SElinux policy

Run the program in a new session

Server-side program of sftp protocol

interactive file transfer program

shell command interpreter

Used to calculate the SHA-256 hash of a file

Move position parameters.

Display and set shell operation options

Display information loaded by NFS server

Generate random permutations.

Command used to execute system shutdown

Send a signal to the selected process to freeze the process

Real-time display of kernel slab memory cache information

Delay the current action for a period of time

Command to find a file or directory

Smartmontools is a hard drive detection tool that is implemented through SMART (Self Monitoring Analysis and Reporting Technology) technology that controls and manages hard drives.

Interactively access samba server

samba user and password management tool

Sort all lines in a text file.

Reads and executes commands from the specified file in the current shell environment.

Test the server's external network speed under the command line

Spell check the file

Split files of any size

squid server daemon

Client management tool for squid server

Socket statistics are easier to use than netstat. Another tool included with the iproute2 package allows you to query socket statistics.

Add private key to ssh-agent's cache

ssh key manager

Install the local ssh public key file to the account corresponding to the remote host

Generate, manage and convert authentication keys for ssh

Tools for collecting host public keys

Client connection tools in the openssh suite

Server daemon in openssh software suite

Interaction-free SSH login tool.

Used to start X Window

Used to display status information of files

Tracing system calls and signals

Find a printable string in an object file or binary file

Modify relevant settings of the terminal command line

Used to switch the current user identity to another user identity

Execute commands as another identity

Calculate the checksum and display block number of the file

Process manager tool for configuring background services/resident processes

Suspends the execution of the shell.

Close the specified swap space

Activate swap space in Linux system

Used to force changed content to be written to disk immediately

Dynamically modify the kernel's operating parameters

System default log daemon

System Service Manager Directives

Displays information about devices in the system based on buses, classes, and topology

Concatenate multiple files and print line-by-line reverse to standard output.

Display the last few lines of the specified file on the screen

Displays the last few lines of the specified file on the screen, usually used for trace output of log files.

Let users chat with other users

Save many files together to a single tape or disk archive and restore the required files individually from the archive.

A sniffer tool, a packet capture tool and sniffer on Linux

Resend the package saved in PCAP file for performance or functional testing

Reads data from standard input and redirects to standard output and files.

Switch the run level of the currently running system

Log in to the remote host and management (test whether the ip port is connected)

Name temporary files in shell

Execute conditional expression.

Use TFTP protocol to transfer files between the local machine and tftp server

Count the total time spent on a given command

Used to set or query system time, date, time zone and other configurations in Linux.

Displays the accumulated process time.

Display system load status

Tmux is an excellent terminal reuse software, similar to GNU Screen, but comes from OpenBSD and is licensed by BSD.

Display or manage running programs

Create new empty file

Initialize and operate terminal sessions through the terminfo database

Replace, compress and delete characters

Track the routing information passed by the destination host

Display the path between packets and hosts

Capture signals and other events and execute commands.

Treemap listing the contents of a directory

The return status is success.

Displays the file name of the terminal device connected to the current standard input.

Displays the type of the specified command.

Controlling the resources of shell programs

Displays or sets the permission mask for creating files.

Used to unmount a mounted file system

Remove aliases set by alias

Print system information.

Decompress the compressed package created by the arj command

Used to decompress .Z files

Convert file's whitespace characters to tabs

Show or ignore duplicate rows.

The system calls the function unlink to delete the specified file.

Delete function prototypes in C language source code files

Unzip rar file command to extract files from rar compressed package

Delete the specified shell variable or function.

Used to decompress archives compressed by the zip command

Create or update the database files necessary for the slocate command

View Linux system load information

New system user created

Used to delete a given user and files related to the user

Used to modify the user's basic information

Operate the specified network interface when allowed

Print the names of all logged-in users on the current host.

UUCP file transfer service program

Command to process incoming files

Transfer files to the remote UUCP host

VirtualBox software mounts VDI partition file tool

Modify volume group properties

Convert volume group metadata format

Used to create LVM volume groups

Display LVM volume group information

Add a physical volume to a volume group

Remove a physical volume from a volume group

Used by users to delete LVM volume groups

Use the vgrename command to rename the volume group name.

Scan and display volume groups in the system

Powerful plain text editor

Show virtual memory status

Displays the volume name of the specified ISO-9660 format device

Display the information of users currently logged into the system

Wait for the process to finish executing and return

Output information to all currently open terminals on the system

The output results of the command can be output to the standard output device, which is mostly used to execute commands periodically/scheduledly.

Count the number of bytes, words, and lines of a file

Linux system download file tool

Query what function a command performs

Find binary programs, code and other related file paths

Find and display the absolute path of the given command

Displays information about all currently logged in users.

Print the name corresponding to the currently valid user ID

Send information to the specified login user terminal

A filter for passing arguments to other commands

Display and edit the authentication information used to connect to the X server

Manage X pasteboard

Control which X clients can be displayed on the X server

It is the initialization program of X-Window system under Linux

List all defined atomic components within the X server

List client applications on the monitor

List fonts used by X Server

X Window System Configuration Management Tool

Utility tool for setting user preferences in X-Window system

POSIX platform development tools with high compression rates

Print the specified string repeatedly

Display the domain name of the host's NIS

RPM-based package manager

Display the contents of the files in the compressed package

Force the .gz suffix to be added to gzip format compressed files

Can be used to decompress files

Used to list compressed file information

将.Z压缩包重新转化为gzip命令压缩的.gz压缩包

Reconvert the .Z compressed package into a .gz compressed package compressed by the gzip command