Linux Key Directory Highlights

1. if want to let terminal login prompt character, become oneself like appearance, should change/etc/issue;

2, if you want to let users login, only display welcome information, should be changed/ETC/MOTD;

3, the hypothesis has three, namely: Command1 && Command2 | | Command3 (note the order can not be mistaken);

&& | | Description of:

• cmd1 && cmd2 1) if the CMD1 executes and executes correctly ($?=0), the CMD2 is started.

2) If CMD1 is executed and is error ($?≠0), CMD2 does not execute.

• cmd1 | | cmd2 1) If the CMD1 is executed and executed correctly ($?=0), the CMD2 does not execute.

2) If CMD1 is executed and is error ($?≠0), the CMD2 execution begins.

4, the relevant procedures of the boot process are under the/etc/init.d/;

This article is from "Tornado" blog, please make sure to keep this source http://ruilong.blog.51cto.com/4043170/1763205

Linux Key Directory Highlights