http://www.webupd8.org/2009/12/how-to-recover-grub2-linux.html
http://www.ubuntu-inside.me/2009/06/howto-recover-grub2-after-windows.html
http://ubuntuguide.net/how-to-restore-grub-2-after-reinstalling-windows-xpvistawin7
http://linuxers.org/howto/how-recover-grub2-ubuntu-910-karmic-koala
http://ubuntuforums.org/showthread.php?t=1014708
http://www-rohan.sdsu.edu/doc/debian/ch-editor.html
http://www.washington.edu/computing/unix/vi.html
http://hubpages.com/hub/Vi-Unix-Editor-How-to-use-Vi-Editor-and-Common-Problems
http://thomer.com/vi/vi.html
http://unix.t-a-y-l-o-r.com/Vi.html
http://forum.codecall.net/linux-tutorials-guides-tips/23785-how-use-vi-key-bindings-bash.html
http://acms.ucsd.edu/info/vi_tutorial.shtml
http://staff.washington.edu/rells/R110/
http://www.builderau.com.au/program/unix/soa/Use-vi-to-edit-files-in-a-UNIX-environment/0,339024638,339160224,00.htm
http://maestric.com/doc/unix/ubuntu_sudo_without_password
sudo visudo
<username> ALL=(ALL) NOPASSWD: ALL
http://clonezilla.org/
http://www.wlug.org.nz/AsteriskSipPhoneSetup
http://www.jeremy-mcnamara.com/2007/02/26/how-to-configure-asterisk-your-first-installation/
http://asteriskathome.sourceforge.net/handbook/
http://www.voip-info.org/wiki-Asterisk+config+sip.conf
http://www.howtoforge.com/asterisk_pbx_linux
http://www.asteriskguru.com/tutorials/asterisk_voip_ipphone.html
http://phplinuxandthelike.wordpress.com/2007/07/30/asterisk-and-fedora-core-7/
http://www.playonlinux.com/en/download.html http://linuxosjatekok.blogter.hu http://cubeengine.com/ http://www.warsow.net/ http://www.nighsoft.net/ http://www.urbanterror.net/news.php http://vdrift.net/ http://www.americasarmy.com/ http://www.aao.hu/ http://linuxbox.hu/ubuntu_gama http://lwolf.extra.hu/fg_fps.html http://www.linuxgames.com/ http://www.linux-gamers.net/ http://linux.strangegamer.com/index.php?title=Main_Page http://en.wikipedia.org/wiki/Linux_gaming http://www.linuxbazis.hu/bongesz.php?id=62 http://freegamer.blogspot.com/2001/01/free-games-list.html http://www.linux-gamers.net/modules/wfdownloads/viewcat.php?cid=27 http://www.wine-doors.org/wordpress/ http://www.playonlinux.com/en/download.html
http://tldp.fsf.hu/HOWTO/Bash-Prog-Intro-HOWTO-hu/Bash-Prog-Intro-HOWTO-hu-11.html http://www.ms.sapientia.ro/~lszabo/oprendszer1/doc/9_sed.pdf http://209.85.129.132/search?q=cache:PvGJ_uzoKIIJ:https://bevinfo.inf.elte.hu/wiki/index.php/Linux_parancsok_(bash)+linux+bash+oszlopok+list%C3%A1z%C3%A1s&hl=hu&ct=clnk&cd=2&gl=hu&client=firefox-a