Linux Basic

First, you need to learn how to find and read document .

Basically , you can type man yourcmd,

Blow is the Linux Directory Struct. Image from network.

Users And Groups:

Performance Monitoring:

Variable Replace In Shell:

Crontab :

每五分钟执行  */5 * * * *

每小时执行    0 * * * *

每天执行      0 0 * * *

每周执行      0 0 * * 0

每月执行      0 0 1 * *

每年执行      0 0 1 1 *

basic