E: Malformed line 55 in source list /etc/apt/source.list (dist)
E: The list of sources could not be read.
this error occur everytime I type sudo apt-get install libreoffice-gnome. im new in linux so i dont know what to do. I have read some post topics and come up with this idea. can anyone help me?
here is what inside my sources.list:
deb cdrom:[Ubuntu 10.04.3 LTS _Lucid Lynx_ - Release i386 (20110720.1)]/ lucid main restricted
# See
http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb
http://us.archive.ubuntu.com/ubuntu/ lucid main restricted
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb
http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb
http://us.archive.ubuntu.com/ubuntu/ lucid universe
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid universe
deb
http://us.archive.ubuntu.com/ubuntu/ lucid-updates universe
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb
http://us.archive.ubuntu.com/ubuntu/ lucid multiverse
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid multiverse
deb
http://us.archive.ubuntu.com/ubuntu/ lucid-updates multiverse
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid-updates multiverse
## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb
http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src
http://us.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb
http://archive.canonical.com/ubuntu lucid partner
deb-src
http://archive.canonical.com/ubuntu lucid partner
deb
http://security.ubuntu.com/ubuntu lucid-security main restricted
deb-src
http://security.ubuntu.com/ubuntu lucid-security main restricted
deb
http://security.ubuntu.com/ubuntu lucid-security universe
deb-src
http://security.ubuntu.com/ubuntu lucid-security universe
deb
http://security.ubuntu.com/ubuntu lucid-security multiverse
deb-src
http://security.ubuntu.com/ubuntu lucid-security multiverse
deb
http://repository.glx-dock.org/ubuntu lucid cairo-dock
deb
http://ppa.launchpad.net/cairo-dock-team/ppa/ubuntu
lucid main ## Cairo-Dock-PPA
