20160928 old boy LINUX02

Today we're looking at a file type and extension.

D This is the catalog file

-Normal file

L Link File

D Block Device file

C-Character device files

s socket file

P Pipeline File

Related commands

#ls-al|grep "/" Display directory file

#ls-F also displays the catalog file

#ls-al|grep "^a" shows the file with the previous character a

#ls-al|grep "a$" displays a file with the following character a

#find Mans

#find. -type F

#ls-AL/DEV/SDA

Users and user groups

Four files

All in/etc

passwd Shadow Group Gshadow

Using the Interpreter/bin/bash

If you don't let login change Nologin

Hard Soft Links

ln source File New filename

Ln-s source File New filename

Hard links cannot be linked to a directory

Software links can be linked to the directory

Inode node

20160928 old boy LINUX02