[sf-lug] my linux notes

Frantisek Apfelbeck algoldor at yahoo.com
Tue Sep 28 23:31:28 PDT 2010

HI to All!
I'm just enclosing a file which I've started on 20th of May in 2008. They are 
basic notes on my Linux (Ubuntu) adventures. Maybe some can be handy for you, 
tips and tricks are appreciated. Or even better share your ones!



PS Parts are in Spanish

Aprender Linux  pwd ls		s; sh; l (long format); -a (see all the files); t cd		/: 
cd cp		-r; -i mv rm		-r rmdir mkdir df		-h free		-m top		(exit – q) uname		-a 
lsb_release	-a ifconfig date cal man		intro; -k; -f; (command name) less		SPACE; 
b; G; 1G: /characters; n; q mount		 ln		make links between files sort ls -l | 
less ls -lt | head du | sort - nr find . - type f -print | wc -l apt-get xload & 
bg		put the program to the background (after CTR Z) fg jobs ps kill set		show 
the environment type .bashrc fdisk		 cfdisk nslookup archive.ubuntu.com df -h du 
-ch | grep total   [show size of the files/directories in the current directory] 
du -sh  [list the size of the directory=summa] zip optiones archive impattern 
inpattern ... (zip -r temporary.zip /temporary) unzip archive (unzip 
temporary.zip -d blast/) [unzip to specified directory] less /proc/meminfo  
[list detailed info of memory] less /proc/cpuinfo [list detailed info of cpu] 
less /proc/version  [list version of operating system] evince  [open pdf file] 
(evince filename.pdf) /sbin/ifconfig   [network detials] ifconfig  [network 
details] split   [split file]    split -b 100m peliculas/example.avi example 
[results in creation of exampleaa, exampleab etc.] cut   [join the file]   cut 
examplea* > example.avi [joins all files named for example exampleaa exampleab 
etc. to example.avi]  sudo apt-get install samba samba-tools system-config-samba 
smbfs sudo smbpasswd -a username [replacing username with your login username] 
sudo vim /etc/samba/smb.conf [add the directories to be added right at the end 
in the fallowing format] [Pictures] path = /home/username/<folder_to_be_shared> 
[replace username with your username and <folder_to_be_shared> with the folder 
you want to share] sudo /etc/init.d/samba restart [restarting samba] [On Linux 
type the falowing in web browser] \\192.168.x.x [replace 192.168.x.x with the 
actual IP address of your server which is serving the folder]  apt-get install 
ubuntu-restricted-extras [para installar adobe flash etc.]  [skype installation 
with updates] echo "deb http://download.skype.com/linux/repos/debian/ stable 
non-free #Skype" | sudo tee -a /etc/apt/sources.list > /dev/null sudo apt-key 
adv --keyserver pgp.mit.edu --recv-keys 0xd66b746e sudo aptitude update && sudo 
aptitude install skype    skype install for 10.04 wget 
http://www.skype.com/go/getskype-linux-beta-ubuntu-64 sudo apt-get install 
libqt4-dbus libqt4-network libqt4-xml libasound2 sudo dpkg -i 
skype-XXXXXXXXXXXX.deb #if you still get some dependency error then just type 
the command below sudo apt-get -f install    back up folder synchronization - 
ensuring that two different folders at two locations hold the same data creating 
an archive - mainly used for long-term storage, primarily of configuration files 
and documents rsync -     samba share smbclient -L //hostname #[smbclient -L 
//tinyy] smbclient //server/sharename #[smbclient //tinyy/peliculas] get # 
download single file msget # download multiple files put # put files on server 
mput # put multiple files on server    permanent mount - linux and ntfs 
partitions # edit fstab file sudo vim /etc/fstab # edit the list of partitions 
adding the desired partition for linux /dev/sdb6 /mnt/tartaros_data ext4 
users,noatime,auto,rw,nodev,exec,nosuid 0 0 # edit the list of partitions adding 
the desired partition for windows ntfs /dev/sdb6 /mnt/tartaros_data ntfs 
defaults 0 0  usb file system format/rename  sudo mkfs.vfat -n 'label' -l 
/dev/sda #sudo mkfs.vfat -n 'bananafanana' -l /dev/sdb1 sudo e2label /dev/sda 
<device> #sudo e2label /dev/sdb1 bananafanana    Particioning  primary partition 
- max 4 on one harddrive extended partition - max 1 on one harddrive and can not 
be formated with filesystem, such as ext3, FAT etc. Partition created within 
extended partition is called a Logical partition. ext3 filesystem for linux NTFS 
filesystem for windows master boot record (MBR) - when determinating which 
partition is root and which home, chenk menuy on ext3 file systems in partition 
manager       Mover el cursor  CTRL +  p; n; a; e; b;k; u; w; TAB   command name 
interface working directory absolute pathname relative pathname option arguments 
case sensitive	big and small letters metter symbolic link wild cards	*;  
input/output redirection standard output standard input   pipes shell builtins 
environment aliases			type of command in environment shell functions		type of 
command in environment  .		working directory ..		working directory's parent 
directory -		normal file (ls command) d		directory    comand option argument 
physical track positioning – taking an advantage of inner, middle and outer 
tracks of har drive and files saved in these different locations    Command 
syntax  command [flags] argument1 argument2  - hyphen  correcting typos ctrl + 
w; ctrl +U abort process			ctrl + c suspends current program	ctrl + z discard 
output 		ctrl + o resume to display		ctrl + q 				ctrl + s quite linux 
session		ctrl + d apropos	or	man -k rlogin passwd cat alias		(alias l='ls -l') 
unalias gzip df			-h diff du			-s echo finger ftp get mget put mput grep history 
look mail script source spell tar telnet pam_umask who sed units  lshw  arp 
wodim mkisofs gksu gedit /etc/X11/xorg.conf	"change keyboard options" 
/usr/bin/firefox	starting moxilla from terminal 
/usr/lib/openoffice/program/soffice sudo mount -o loop -t iso9660 
/path/to/iso/file.iso /path/were/to/save/it  bisness card creator - open source 
sudo aptitude install glabels  Basic local network setup on ubuntu machine 
(10.04)  convention range of IP addresses dedicated to the machines on the 
network: 3-10 printers 11-49 administrator 50-99 student computers 200-248 ??  
DHCP server claims probably between 100-149  Manual configuration of the IP 
addresses of the computers  type the ifconfig command for the information about 
your network interfaces ifconfig  configure your IP address to value 50->  sudo 
ifconfig eth  check that IP was chenged by repeating the ifconfig 
command ifconfig  if IP changed, connect the computer to the router by RG44 
jack/Ethernet cable  ping the router, IP probably ping   
cancel the process by control + c and continue further if the connection is 
established  set up the IP on second computer: sudo ifconfig etc  
check the change by ifconfig and ping the router  ping the first computer from 
the second computer ( ping  connect the printer 
through the graphical interface to the one of the printers and set it up as a 
printing server.   Next week I hope to the the command line options on 
connecting the printers and sharing the printer from several computers. 

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