1. Shutdown command:
Halt;reboot;shutdown can use man shutdown to see its detailed explanation
shutdown [option] Time
Option
-h:halt
-r:reboot
-c:cancle
Time:
hh:mm
Now
+#
2 users: Get credentials for a resource or service
Linux path:/home/casey
Linux file types
1. Strictly case-sensitive
2, can use any character, not carriage return,/
3. Start with, the description is hidden file
4../And.
5, the maximum is 255 characters
Linux File types:
1, ordinary documents-, F
2. catalog File D
3. Linked files (Windows-like shortcuts)
1. Symbolic Link L
2. Hard Link-
4. Special files: Related to hardware devices, used as a hardware device access to the portal file
Block device: Random access, access by block (U-disk) b
Character devices: linear, per-character device (keyboard mouse) C
5. Socket file (software simulation) socket,s
6. Named pipe file Pipe,p
Linux file types