Ubuntu 笔记

查看内存

free -mh
// h 是按照符合人阅读的单位进行显示

查看硬盘

df -hl

查看最近重启记录

last reboot

查看最近登录用户

last

Default Ubuntu (with LightDM)

sudo restart lightdm  

Gnome (with GDM)

sudo restart gdm

KDE (with KDM)

sudo restart kdm
Note: From 12.10, Kubuntu also uses LightDM.
For MDM (e.g. for Mint Cinnamon)
sudo restart mdm