2018-01-08 Linux Directory Management class commands

cd, pwd, ls

mkdir, rmdir, tree

mkdir [Options]/path/to/somewhere
-P: exists in no error, and can automatically create the required directories;
-V: Show more information
-M MODE: Specify permissions directly when creating a directory;

Tree
-D: Show only directories
-L Level: Specifies the number of levels to display
-P Pattern: Displays only the path that is matched by the specified pattern;

RmDir: Delete Empty directory
rmdir [OPTION] ... DIRECTORY ...
-V: Display process;

Practice:
(1) How to create/tmp/x/y1,/tmp/x/y2,/tmp/x/y1/a,/tmp/x/y1/b,/tmp/x/y2/a,/tmp/x/y2/b
MKDIR/TMP/X/{Y1,Y2}/{A,B}

(2) How to create X_m, Y_m, X_n, yN
mkdir {x, y}{m,n}

(3) How to create/tmp/bin,/tmp/sbin,/tmp/usr,/tmp/usr/bin,/tmp/usr/sbin
Mkdir-p/tmp/{bin,sbin,usr/{bin,sbin}}

2018-01-08 Linux Directory Management class commands