Linux Operation and Maintenance Foundation

Operation and Maintenance Foundation mainly includes Linux entry, file management and redirection, user group permissions, text processing and software management.

1. Linux Introduction: This is relatively simple, mainly introduces the history of Linux, Access methods, bash and some simple commands. It's not too much to repeat here.

2. File management and redirection: Linux's system architecture differs greatly from Windows, and in Linux systems, everything can be said to be files. Include: Ordinary files, directory files, character device files, block device files, symbolic link files and so on.
   Common operations for File systems: CD, PWD, LS, stat, touch, CP, MV, RM
   Common operations for files in file systems: CP, MV, RM, mkdir, rmdir, Ln, inode, block, Inode Bitmap, block bitmap ...
   Features of bash:

   输入：<, <<  输出：>, >>   错误：2>, 2>>

Linux Operation and Maintenance Foundation