ubuntu

Show the System Information again in Ubuntu Server

Every time when I log on my ubuntu server, there always be a System Information displayed. How can we tell to the bash to re-display this screen again?

The command is: landscape-sysinfo

Simply, you just need to type land and press tab key to let the auto complete do the job.

 

Source: http://askubuntu.com/questions/7949/where-does-the-system-information-information-come-from-on-login

use chattr to lock file

chattr

This command can be used to lock a file.

usage: chattr +i filename

The files locked by chattr cannot be modified or deleted, even with root permission.

For unlocking, use chattr -i filename.