Important and frequently-used commands

The most important and frequently used commands-general Linux technology-Linux technology and application information. For more information, see the following. (: 0wpoi2 I'm in http://linux.chinaunix.net/techd... see/06/08/959628.shtml and send it if you think it is good.) The number of Linux commands in different versions is different. Among them, the most important and frequently used commands are, according to their role in the system, we will introduce them into several parts. Through the study of these basic commands, we can further understand the Linux system: Installation and logon commands: login, shutdown, halt, reboot, mount, umount, chsh file processing command: file, mkdir, grep, dd, find, mv, ls, diff, cat, ln system management commands: df, top, free, quota, at, lp, adduser, groupadd kill, crontab, tar, unzip, gunzip, and last network operation commands: ifconfig, ip, ping, netstat, telnet, ftp, route, rlogin rcp, finger, mail, nslookup system security-related commands: passwd, su, umask, chgrp, chmod, chown, chattr, sudo, pswho.
0: w (5) (Linux commands must be learned. Although Linux desktop applications are developing rapidly, commands still have a strong vitality in Linux. Linux is an operating system composed of command lines. Its essence lies in the command line. The principle of the graphic interface remains unchanged no matter what level it develops. Linux commands have many powerful functions: from simple disk operations, file access, to the creation of complex multimedia images and streaming media files. For example, if you look at the man document using the common Linux Command find, beginners will surely feel that it is too complicated to use it, but once you learn it, you will never let it go. its functions are too powerful. In combination with exec parameters or redirection to xargs commands and grep commands through pipelines, it can perform very complex operations. If the same operation is done using a graphical interface tool, i'm afraid it will take more than a dozen minutes.