some useful ubuntu command

1) install/search/update packages through internet
#install a package
sudo apt-get install vi-X11
#search for a package
sudo apt-cache search vi
#update
sudo apt-get upgrade

2) install/search/update packages locally
#install a package
sudo dpkg -i wingide5_5.0.4-1_amd64.deb
#list all the installed packages
dpkg -l
#list all the installed files of one package
dpkg -L vi-X11
#remove an installed package
dpkg -r wingide5

3) dig
dig @dns_server www.google.com

4) traceroute
sudo apt-get install inetutils-traceroute
traceroute -q 1 -n -m 15 www.google.com

5) show uuid
blkid

6) service status
service --status-all
service mysql status
/etc/init.d/mysql status

7) Chinese support
sudo locale-gen zh_CN.GBK
sudo locale-gen zh_CN.GB2312
sudo locale-gen zh_CN.GB18030
sudo dpkg-reconfigure locales

sudo usermod -p '!' root