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"some little-known but interesting Unix/Linux commands" series: some little-known but interesting Unix/Linux commands (1) some little-known but interesting Unix/Linux commands (2) some little-known but interesting Unix/Linux commands (3) some little-known but interesting Unix/Linux commands (4)

Perhaps some people have some misunderstandings about the value or essence of this series of articles. It is necessary for D Guago to clarify this question.

The quintessence of the article

On January 22, 2013, D Guago posted the third article in this series on the home page of the blog Park. As a result, the home page may have been removed because it was suspected to be a reprinted post. After communicating with the editor of the blog Garden, the article was finally successfully moved back to the home page.

The editor of "blog Garden" also pointed out that he would like to introduce more about each command, such as the full English name of each command, usage examples.... the words of the editor of the blog Garden also reflect some questions: what is the essence of this series of articles? What is the value of the article? It is estimated that this is the common question of many friends who have read this article. In order to make this series of articles play its due role, D Guago needs to explain the value of this series of articles.

This series of posts is actually a problem with the translation and arrangement of Quora: What are some lesser known but useful Unix commands? In order to make the post more practical, I searched a lot of materials and added them as "references" to the article. The articles mentioned in the references are all very good, much better than the articles by D Guago! These references are the essence of the article! The order introduced is just an introduction. I hope all of you who are interested in Linux can check the reference materials and learn more through these introductions. The value of this series of articles is reflected here.

Of course, the first article in this series failed to reflect the "article value" explained here because the positioning at that time was not very good. D Guago finish this series of articles, and then come back to fix the flaws in the first article!

Starting with the fourth article in this series, D Guago continues to introduce you to some interesting Unix/Linux commands.

Those interesting commands fortune, each time you run this command, will give an interesting sentence, or a pair of interesting questions and answers. You can learn English and have fun at the same time. Haha sl, this is an interesting instruction to drive a steam locomotive directly to you. Who knows who plays? Sudo!, as the root user, execute the last command; this is very useful! Highly recommended... Cat

< /dev/tcp/domain-or-ip/port-here，可以创建一个一次性的TCP Socket链接；tree，以树的形式现实当前目录以及子目录所有pv，即Pipe Viewer，查看运行时间比较长的命令的执行ncdu，即NCurses Disk Usage，递归显示每个文件（或者文件夹）占用的磁盘空间；fdupes，查找并删除重复的文件；find，专门用于查找文件，而且提供了很多你意想不到的功能；sdiff，以并排方式合并文件之间的差异；base64，将数据（文本、二进制文件等）以Base64编码方式解释称字符串，然后输出；nice，以指定的优先级运行命令；如果不指定优先级，程序会显示当前的优先级；uname，输出一组系统信息。如果不加任何参数，则只显示内核名称；setfacl，设定文件的访问控制列表；tee，将标准输入重定向到文件或者标准输出中；mc，Midnight Commander (MC)是 Linux 控制台和其它终端环境中的"瑞士×××"，是一个很方便的文件管理器，相当于Windows下的 Total Commanderbeep or "echo -e '\a'>

/ dev/console ", the computer emits a beep sound to warn the computer user, such as the command does not complete mesg, controls whether others are allowed to send information to their own terminal interface write, sends a message (ending in Ctrl+D) wall to other users of the computer, and sends a message to all users of the computer. Reference material Unix Tree / Linux Treediff,sdiff,cmp Comm compare different linux diff sdiff of files to find differences in directories and files sdiff I have used base64 of Linux commands-detailed explanation of base64 codec Linux commands-uname commands under niceLinux system Bird: Linux account Management and ACL permissions Settings use setfacl and getfacl in linuxlinux tee commands to explain File Manager Linux mesg commands for Linux MC-- terminal environments detailed instructions on the use of Linux write commands detailed system management of linux commands wall, write, mesg, sync, shutdown, Free 、 uptime

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