"Linux Summary" file types and Common commands

File types in Linux:

• -: Normal file (f)

• D: Catalog file

• B: Block device files (blocks)

• C: Character device file (character)

• L: Symbolic Link files (soft link files) (Symbolic link file)

• P: Command pipe file (pipe)

• S: Socket file (socket)

-rw-r--r--1 root root 23:11 upstart-xsessions

-rw-r--r--1 root root 1018 Oct 5 usb_modeswitch.conf

-rw-r--r--: File permissions: 9-bit, each three-bit group, each group: rwx (Read, write, execute)

1: Number of hard links to files

Root: The owner of the file

Root: The genus (group) of the file

270: File size (size), Unit is byte

Feb 29 23:11: Timestamp (timestamp): Last Modified Time

Upstart-xsessions: File name

Because the file size is in bytes

-H: Do unit conversion k

-A: Show hidden files starting with.

.: Indicates the current directory

.. : Represents the parent directory of the current directory

-A: Displays except. and. Hidden files outside of

-D: Displays the properties of the directory itself

-i:index Index of Node,inode files

Linux defaults with file names being sorted

-r: File name inverted sort

-R: Recursive (Recursive) display

Cd:change Directory Switch Files directory

CDS: Home directories, home directories, home directory

CD ~usernam: Enter the home directory of the specified user

CD-: Return to previous directory

"Linux Summary" file types and Common commands