Some little-known but interesting Unix/Linux commands (3)

Two days ago, the "some little-known but interesting Unix/Linux commands" series were released.Article, Received praise from some friends. (I wanted to write "a lot of friends", but I thought Linux was really a small crowd, so brother D would not be forced! Haha) D. Will make persistent efforts. The links to the first two articles are as follows:

1. Some little-known but interesting Unix/Linux commands (1)
2. Some little-known but interesting Unix/Linux commands (2)

In the third article in this series, Dr. D will continue to introduce some interesting Unix/Linux commands.

Interesting commands

• MTR,A very useful tool for determining network connectivity;
• Cssh,Cluster SSH is a tool that can operate on multiple windows simultaneously;
• Wireshark,A powerful network packet capture tool that provides users with various information about networks and upper-layer protocols. It is the most popular network analysis tool in the world;
• Tshark,The command line tool corresponding to Wireshark;
• Host,The DNS resolution query tool resolves a host name to an IP address or an IP address to a host name;
• Dig,The DNS resolution query tool is more explicit than the host command, but not easy to understand;
• Lsof,Is short for list open files. It is a tool used to list open files in the current system;
• Dstat,Collect the running data of the system and collect the specified performance resources;
• Iostat,A query tool for CPU and hard disk I/O usage status;
• Htop,TOP Command upgrade, interactive command line process monitor;
• Last,Query System Login logs;
• W,Displays the user information currently logged on to the system, which is more powerful than who;
• ID,Query user IDs and group IDs;
• SAR,It is mainly responsible for collecting, reporting and storing system operation information;
• Iftop,Similar to top real-time traffic monitoring tools;
• SS,Command Used to view socket information, an upgraded version of netstat;
• Dmesg,A tool used to display the control information of the kernel buffer system;
• Hdparm,Used to detect, display, and set parameters of the IDE or SCSI hard disk;
• Lsb_release,Used to view the release information of the current system;
• Lshw,That is, list hardware, a tool for viewing hardware information;

And

The original plan was to write three articles for introduction. Today, I looked at the original post and found many interesting things. Therefore, you may need to write a few more articles to complete the introduction. In addition, Brother D is not particularly familiar with Linux, and the translation and sorting process is also a learning process; he wants to get something better. Therefore, every article is controlled at 20 instructions. If you have good suggestions or comments, please leave a message to discuss them. D. Thank you!

References

1. Linux MTR command details
2. Install and use Wireshark in Linux
3. Usage of the packet capture tool tshark and tcpdump in Linux
4. Linux host and dig commands
5. Bird brother: Host Name Supervisor: DNS Server
6. Linux lsof
7. Dstat for Linux Performance Testing Tool
8. Linux iostat monitors Io status
9. Iostat for Linux hard disk I/O performance
10. Htop-the most powerful process monitor in Linux
11. Htop
12. Linux W command who command
13. Detailed description of W command parameters in Linux
14. Summary of the SAR tool commands in Linux
15. SAR interview
16. Linux traffic monitoring tool-iftop
17. SS
18. Linux hdparm command parameters and Usage Details
19. Lsb_release of Linux commands I have used
20. Lsb_release command
21. Display hardware information in Linux (2) -- lshw