FTP with backslash in username or passwd

If you have a backslash in username or passwd, you need to do a special character to escape backslash.

For example: ftp\username

export ftpusername='ftp\\username'

If you put a double quote around export ftpusername, it doesn't work. Or if you try to add "/" like "ftp/\username" doesn't work either. Imagine how syntax could get your way.

Ubuntu useful commands

To install .deb package.

sudo dpkg -i package_file.deb

When using vi editor in Awn gnome-terminal, ESC does not work, but Ctrl+[. It's hard to use vi in Awn, but it's still work.

-- searching virtualbox in the system

sudo aptitude search virtualbox

-- install virtual box

sudo apt-get virtualbox-ose

-- get new updates

sudo apt-get update

-- install updates

sudo apt-get upgrade

-- How to change files/folders ownership

sudo chown username /location_of_files_or_folders

-- If you want to change ownership of all containing files and folders recursively, use the -R option like this:

sudo chown -R username /location_of_files_or_folders

-- How to change files/folders group ownership

sudo chgrp groupname /location_of_files_or_folders

-- If you want to change group ownership of all containing files and folders recursively, use the -R option like this:

sudo chgrp -R username /location_of_files_or_folders

yakuake drop-down terminal emulator

This is my favorite terminal emulator.

Yakuake is a drop-down terminal emulator based on KDE Konsole technology.

http://yakuake.kde.org/

You can install on Ubuntu:

sudo apt-get install yakuake

VPN client on Ubuntu 9.04

VPN client on Ubuntu 9.04 is getting easier:

1. sudo apt-get install network-manager-pptp
2. click network-manager icon in panel-->VPN connections-->Configure VPN…
3. click Add button to add your vpn.server.com, username and passwd