Albert Bicchi

The OS War and why opinions do not matter

2009-03-20T23:10:00.001-04:00

So many things to do and so little time to blog. The last few months have been a fun roller coaster ride in the OS world. I had the opportunity to become a power user in OpenSUSE, CentOS, FreeBSD just to name a few. I use the words "power user" in a very humble way since one never stops learning new features. Here is a brief overview of what struck me in each one of those Operating Systems. I will include what I consider strong/weak points of each and what in the end are just options on a diverse software ecosystem that is constantly expanding.

OpenSUSE

Yast is great central tool to tweak and configure servers and I just wish all distro's come with it. Webmin and the other range of web interfaces do the job of basic configurations but I would not want to do root work over the web on production servers. Yast happens to the only thing I liked about *SUSE that would make me switch from Ubuntu to it. Theme wise I do not see which one is worse, Ubuntu's brown or OpenSUSE green. I personally do not like either one of those colors for a Desktop.

CentOS

CentOS brings the same features and benefits that RedHat offers at an affordable price $0. It offers the Linux community a secure/stable distro such as RedHat at a price one cannot afford to pass. Makes it a great distro for a data center or where one must run Linux and make sure the OS is patched decreasing cost adding value. The drawback is that you are running a kernel from a few months/years ago but contains some features that are backported from current kernel. On the other side, I have never been thrilled with RPMs and prefer the Debian package format.

FreeBSD

Fact, FreeBSD and its port collection is wonderful. It is so good that my future servers are based on it. So easy to use, stable and with so many packages available makes it for the perfect server. Aside from the fact that is a very secure OS and have a extensive software collection it is easy to install and offers in my opinion the best file system available today, ZFS. I strongly feel that FreeBSD could one day become the best server OS while Linux the perfect Desktop OS but only time will tell. Development of FreeBSD is a bit slower compared to Linux perhaps due to the smaller community behind it.

With that said, these are my opinions and I strongly believe there is no such thing as "The Perfect Distro/OS" as one release does certain things better than the other. In the end System Administrators are more concerned with system stability/uptime, data security, customer satisfaction and last easy to use and manage. It is hard and perhaps idiotic to put my 2 cents to a subject that has gone thorough a lot of heated discussions over the pass years and never reaches a conclusive winner. The winner is perhaps the people that are empowered by having the freedom to choose on what to use.

Quad Cores gone wild

2008-06-19T15:44:00.005-04:00

Interesting to see how computing power has gone up in the past few years - not that this is something I just discovered but here is a nice comparison.

I had an old PC (AMD Athlon 64 3500+) that handled about 200 megaflops on the Linpack benchmark test, then ran the same test on an Intel Pentium D 3.0Ghz (different hardware) and got 740 megaflops. I have upgraded the Pentium D machine and kept the same hardware except for the CPU. The new machine, an Intel Core 2 Quad Q6700 2.66 GHz, scored a whopping 1310 megaflops on the Linpack test. All these test result done without any overclocking or additional cooling besides the heat sink fans. I have also compared my results by calculating the value of Pi to 5000 places and finding the primer numbers using the Sieve of Erastosthenes. Here is the raw output of my results:

Intel Pentium D 3.0Ghz
albert@ubuntu-desktop:~/Desktop/bin/bench$ ./pi.sh 5000
Please wait, calculating Pi to 5000 places ...
real 0m46.251s
user 0m46.011s
sys 0m0.140s

albert@ubuntu-desktop:~/Desktop/bin/bench$ java Linpack
Problem size: 500
Mflop/s: 555.188 Time: 0.15 secs (0.151 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 776.235 Time: 0.11 secs (0.108 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 670.667 Time: 0.13 secs (0.125 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 681.572 Time: 0.12 secs (0.123 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 649.871 Time: 0.13 secs (0.129 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 762.121 Time: 0.11 secs (0.11 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 676.075 Time: 0.12 secs (0.124 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 620.988 Time: 0.14 secs (0.135 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 654.948 Time: 0.13 secs (0.128 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 741.888 Time: 0.11 secs (0.113 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16

albert@ubuntu-desktop:~/Desktop/bin/bench$ java Sieve
Running Sieve benchmark.
This will take about 10 seconds.
84827 iterations in 10.0 seconds
Sieve score = 8483

Intel Core 2 Quad Q6700 2.66 GHz
albert@ubuntu-desktop:~/Desktop/bin/bench$ ./pi.sh 5000
Please wait, calculating Pi to 5000 places ...

real 0m31.277s
user 0m31.214s
sys 0m0.052s

albert@ubuntu-desktop:~/Desktop/bin/bench$ java Linpack
Problem size: 500
Mflop/s: 1022.358 Time: 0.08 secs (0.082 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1251.244 Time: 0.07 secs (0.067 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1270.202 Time: 0.07 secs (0.066 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1270.202 Time: 0.07 secs (0.066 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1270.202 Time: 0.07 secs (0.066 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1289.744 Time: 0.07 secs (0.065 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1270.202 Time: 0.07 secs (0.066 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1289.744 Time: 0.07 secs (0.065 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1289.744 Time: 0.07 secs (0.065 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16
Mflop/s: 1309.896 Time: 0.06 secs (0.064 sec) Norm Res: 5.68 Precision: 2.220446049250313E-16

albert@ubuntu-desktop:~/Desktop/bin/bench$ java Sieve
Running Sieve benchmark.
This will take about 10 seconds.
163433 iterations in 10.0 seconds
Sieve score = 16343

Computer Science Degree

2008-05-02T10:54:00.003-04:00

School is over. I must confess that I am proud of my Computer Science degree as it marks a good accomplishment in my professional career. I get to call myself a "Professional" even though I've worked as one for some time. A degree certainly prepares you better for the challenges to come and develops your problem solving skills. With that said, I do not consider having a degree makes an individual stand over another but I do believe it is important to have one.

The question now is, Master degree? Is it really worth it and in which field? I guess for the love of learning it is worth it but then one does not need an institution to learn.

Math discussion

2008-01-26T07:35:00.000-05:00

Upgrade Ubuntu from an ISO image

2007-10-20T20:27:00.000-04:00

Here is a tip I ended using on a machine that didn't have a CD drive and no connection to the internet. It already had Ubuntu installed and needed to upgrade to the next release. First you need to download the Ubuntu Alternate CD image (text base install) ubuntu-7.10-alternate-i386.iso

Mount the downloaded ISO image in the CD drive mounting point by typing the following:
sudo mount -t iso9660 ubuntu-7.10-alternate-i386.iso /cdrom -o loop
Run the upgrading application found on the CD.
gksu "sh /cdrom/cdromupgrade"
The machine will now upgrade and eventually reboot. You may now remove the CD entry to the image found in the file: /etc/apt/sources.list

You might want to keep the image for software sources and mount it anytime you wish to install new software.

The New King

2007-09-30T09:03:00.002-04:00

Viswanathan Anand is the new World Chess Champion.

Ubuntu Gutsy world

2007-09-22T11:08:00.002-04:00

I have decided to upgrade my main desktop to the development version of Gutsy Gibbon. I tend to do my Linux upgrades a month ahead of the release day in order to avoid the slow downloads and also to help testing. But lets face it, we all like to be the first ones playing with a new toy.

The upgrade pulled back about 900 MB of data and 2 hours later I was running Ubuntu Gutsy. The only issue I noticed was that the kernel didn't get upgraded to the latest one in Gutsy which is 2.6.22. I still was running 2.6.20 because the package "linux-generic" was not installed. Such package is needed in order to pull the latest version of the kernel. Aside from this issue I have not had any other problems considering that this is still in development. From the screenshot in the left you will notice that I have installed a new GNOME theme and icon set. I am just not a fan of Ubuntu's defaults.

Samsung Q1 Ultra

2007-09-04T11:58:00.003-04:00

New toy! Comes preloaded with Windows Vista, boots and runs a bit slow. Battery life is great since I got the extended battery on it. Keyboard keys should be a bit more spaced out unless you have baby fingers. Comes with 2 USB ports, front and back camera, external monitor output and a few other goodies.

It is actually my first tablet PC and I am starting to get used to the stylus. Handwritting recognition works Ok but I would not bother using it for more than 20 words.

I would say that this is more for internet browsing, game playing maybe even as an electronic book. I guess it's too early for me to tell but I sure like it so far.

How to install Ubuntu from a USB flash drive

2007-08-23T02:31:00.000-04:00

The title says it all and this is how I did it. Make sure your machine can boot from a USB device and that you have a pen drive that is at least 1 GB in size. This installation refers to a Feisty install but you can apply the same concept to Gutsy or Gutsy++. Be careful with the commands you type as one wrong digit can format your hard drive erasing all its data. I am not responsible for any damage you do to your machine. If you have never formated a computer or installed and Operating System, ask for help before going forward.

I woud say not to copy paste the commands as this can lead to errors on your side.

Insert the pen drive in the USB slot and wait until Ubuntu mounts it.

You must get the location where the USB drive mounts and this is the most critical step. Type the following and notice the mounting point where the USB drive is located:
df -hT

This command should give you all the drives that are available. In my case my USB drive mounting point shows up like this along with the other drives:

/dev/sdb1 vfat 957M 704M 254M 74% /media/disk

From now on I will refer to my mounting point as: /dev/sdb1 in your case you will need to change this to the one you obtained from the df -hT command.

Install the following two packages: syslinux mtools
sudo aptitude install syslinux mtools

Next we need to download the kernel that is going to boot the pen drive. Change the feisty part below to the release that you will be installing. Keep in mind that this is a i386 machine and you need to change accordingly. http://archive.ubuntu.com/ubuntu/dists/feisty/main/installer-i386/current/images/hd-media/

Download these two files:
vmlinuz
initrd.gz

Next download the Alternate CD iso image from the Ubuntu download page. Keep in mind that this installation only worked for the Alternate CD. I tried doing a regular Desktop install but the process failed on me.
In this case my iso file name is: ubuntu-7.04-alternate-i386.iso

Unmount the flash drive by typing:
sudo umount /dev/sdb1

Now lets partition the pen drive with this command:
cfdisk /dev/sdb

/dev/sdb is the actual mounting point I mentioned above. Notice that you do not need the number 1 at end. Using the incorrect mounting point will erase your hard drive. Be Careful.
Keep in mind that we are going to erase all the data in the flash drive.

Do the following while in the cfdisk partitioning program:

Erase any existing partition and then create a new "Primary Partition."
Press "t" to select the partition type. Enter "0B" for a FAT32 partition.
Make the partition bootable.
Write the partition changes and exit the cfdisk program.

Now we are going to format the new partition created above. Once again change the /dev/sdb1 accordingly to your mounting point for the pen drive. The following command is going to format partition number 1 to a FAT32:
mkdosfs -F32 -v /dev/sdb1

Note that if the above command failed you need to make sure the USB drive is unmounted.

Install the boot loader in the flash drive first partition:
syslinux /dev/sdb1

Mount the flash drive and copy to it the files downloaded above:
vmlinuz
initrd.gz
ubuntu-7.04-alternate-i386.iso

Create a new file in the pen drive with the following 2 lines:
default vmlinuz
append initrd=initrd.gz ramdisk_size=700000 root=/dev/ram rw

Save the file with this name: syslinux.cfg

Your pen drive should now have 5 files in the same place:
initrd.gz
ldlinux.sys
syslinux.cfg
ubuntu-7.04-alternate-i386.iso
vmlinuz

We are done. Now you will need to go into your computer's BIOS during boot. Select that you wish to boot from the USB device first instead of going to the Hard Drive or CD-ROM.

Script to do encryption of files and directories

2007-07-22T22:08:00.000-04:00

I have been working on a script that encrypts and decrypts files and directories in Linux. I could have used GnuPG but I wanted to try a different method that does not need to generate a public and private key. In the long run gpg offers a stronger encryption method that using openssl. The script generates a .des3 file that is first compressed and then encrypted.


#!/bin/bash

function getpass() {
 stty -echo
 echo -n "$2"
 read pw
 stty echo
 echo
 eval "$1=$pw"
}

function usage() {
 echo "crypt - encryptor and decrytor utility."
 echo -e "\tcrypt e [Directory or File to be encrypted]"
 echo -e "\tcrypt d [File to be decripted]"
 exit 1
}

if [ "$1" = "e" ]; then
 if [ ! -e "$2" ]; then
  echo "Error: An invalid file or directory name to encrypt was given."
  usage
 fi
 getpass pass "Enter the password: "
 getpass passconfirm "Re-enter the password: "
 if [ "$pass" != "$passconfirm" ]; then
  echo "Error: Passwords did not match."
  usage
 fi
 
 tar -czpf - "$2" | openssl des3 -salt -k "$pass" | dd of="`basename "$2"`.des3" > /dev/null 2>&1
 exit 0
fi

if [ "$1" = "d" ]; then
 if [ ! -f "$2" ]; then
  echo "Error: An invalid file to decrypt was given."
  usage
 fi
 getpass pass "Enter the password to decrypt the file: "
 tmpfile="/tmp/`echo \"$2\" | sed 's/\.des3$//'`.tar.gz"
 openssl des3 -d -salt -k "$pass" -in "$2" -out "$tmpfile" > /dev/null 2>&1
 if [ "$?" -eq 1 ]; then
  echo "Error: invalid password was given."
  rm -f "$tmpfile"
  exit 1
 fi
 tar xzpf "$tmpfile"
 rm -f "$tmpfile"
 exit 0
fi

usage
# end of script

How to compile the Linux Kernel from scratch

2007-07-18T13:48:00.000-04:00

These steps shows you how to build the Linux Kernel by compiling the kernel and installing it to the appropriate directory. The guide is made for Ubuntu but I am sure it will work with any other distribution. I assume you already downloaded the Kernel from kernel.org and installed in ~/linux-2.6

There is also the Debian way to build kernels and it's much easier than this guide. I intend to show you how to do that in another post.


Copy the configuration file from the current kernel.
You may also obtain it from your distro's online kernel package:
# cd linux-2.6
# cp /boot/config-`uname -r` .config

Run the configuration tool and select the file .config from above
# make menuconfig
configure any necessary changes and save when done.
If you wish to minimize the kernel modules size turn off debugging info
by unchecking from "Kernel Hacking" -> "Kernel Debugging"

Compile the kernel (This process takes about 40 minutes or more)
# make

To find out which kernel version you will be compiling type:
# make kernelversion
for this example kernelversion will be equal to: 2.6.22-rc7-cfs-v19
Keep this version number handy as it is needed again below

To find out which architecture type you are compiling against:
# grep "CONFIG_ARCH " include/linux/autoconf.h | cut -f 2 -d "\""
for this example it will be: x86_64

Become root for the next steps since we need to install the kernel
# sudo su -

Install the kernel modules:
# make modules_install
the modules will be installed in: /lib/modules/2.6.22-rc7-cfs-v19
notice that the directory is the same as the kernelversion

Copy the kernel image (bzImage) from arch/*architecture*/boot/ to the /boot directory
where *architecture* is the the output of the grep command above
# cp arch/x86_64/boot/bzImage /boot/vmlinuz-2.6.22-rc7-cfs-v19
notice that you need to append to vmlinuz the kernelversion

Copy the map file (System.map) from the kernel directory ~/linux-2.6 to the /boot directory
# cp System.map /boot/System.map-2.6.22-rc7-cfs-v19
notice that you need to append to System.map the kernelversion

** You also run: "make install" and avoid having to copy those 2 files above **

Generate a Ramdisk file (See the instructions for Fedora below):
# mkinitramfs -o /boot/initrd.img-2.6.22-rc7-cfs-v19 2.6.22-rc7-cfs-v19
notice that you need to append to initrd.img the kernelversion
On Fedora this should be:
# mkinitrd /boot/initrd.img-2.6.22-rc7-cfs-v19 2.6.22-rc7-cfs-v19

Your /boot folder should now contain 3 new files:
vmlinuz
System.map
initrd.img
** they all should end with the kernelversion (-2.6.22-rc7-cfs-v19) **

You may now run: "update-grub" so that grub finds the new kernel
A typical grub entry would look like this:
title   Ubuntu, kernel 2.6.22-rc7-cfs-v19
root    (hd0,1)
kernel  /boot/vmlinuz-2.6.22-rc7-cfs-v19 root=UUID=4aa91e9e-d275-425f-8d00-7550b194ab65 ro quiet splash
initrd  /boot/initrd.img-2.6.22-rc7-cfs-v19
quiet
savedefault

Note that the block device label udev (UUID) above is found by running:
# blkid
You should be using the one for the current root partition

If you wish to remove the kernel you just create above and uninstall it.
First boot into another kernel and then erase the following files and
directories. If the file or directory does not exists skip to the next one.
# rm -rf /lib/modules/kernelversion
# rm -rf /lib/firmware/kernelversion
# rm -rf /boot/vmlinuz-kernelversion
# rm -rf /boot/initrd.img-kernelversion
# rm -rf /boot/System.map-kernelversion
# rm -rf /boot/config-kernelversion

Don't forget to erase the new kernel entries from grub or run this command as root: update-grub

Show me the code

2007-04-22T02:14:00.000-04:00

For sure life would be so much easier if only we had the source code. But I think we would spend most of the time finding bugs and recompiling something that can not be perfect.
When do we stop learning anyway? Probably Never.

Feisty Fawn gets an A+

2007-04-08T21:30:00.000-04:00

I just finish upgrading my Ubuntu Egdy box to Feisty Fawn. There shouldn't be any mayor changes until release day so I just decided to give it a shot and do the upgrade now. I am not a big fan of upgrading on or after release day since that is when most people decide to apply the dist-upgrade. As a matter of fact, this is the first time I upgrade Ubuntu and the machine actually boots up without me having to hack xorg or any other configuration files. If you are still running Edgy, click here to learn how to upgrade.

I wonder what will be the next name for the Feisty+1 release? How about:
No-gona-bota Windaw

Taking control of my TV time on linux

2007-03-28T21:40:00.000-04:00

I just got me a Hauppauge TV tuner card that works great under linux using the ivtv driver. Its the Hauppauge WinTV PVR-250 card and comes with a nice remote control. This is starting to sound like a commercial so let me get to the point. I noticed that all apps that are available to watch TV on linux are bloated with more features than I need, see: MythTV, tvtime, Sage TV, etc. These are all great and I highly recommend them but if you just need to flip channels up and down why go through all the trouble of downloading/installing such big applications. For this matter I have create a python program that uses mplayer and the ivtv tools to change the channels. It seems to work great and eventually I plan to put a button for volume control and recording capabilities. Once again it shouldn't have all the bells and whistles of the other programs but who knows if one day I get bored and just go all out. ;-)

BASH shell aliases I can't live without

2007-03-23T09:42:00.000-04:00

Here are some command line alias that I often use. For the aliases that do not have a description of what they do, the name of the alias pretty much tells you what they are about.


alias rm='mv --target-directory=$HOME/.Trash/'

alias cd..='cd ..'
alias cd...='cd ../..'
alias cd....='cd ../../..'
alias cd.....='cd ../../../..'

alias ls='ls -ho --color=auto'

alias listhiddenfiles='ls -Ad .[^.]*'
alias listdirectories='ls -d `find . -mindepth 1 -maxdepth 1 -type d | sed "s/\.\///g"`'
alias listfilesbydatemodified='ls -Alt | tac'

alias directorydiskusage='du -skc .[^.]* * | sort -n'

alias networkdump='sudo tcpdump -i eth1 not port 22' # dump all the network activity except ssh stuff

alias processtree='ps -e -o pid,args --forest'
alias processbymemusage="ps -e -o %mem,pid,ppid,user,cmd | sort -nr"
alias processbycpuusage="ps -e -o %cpu,pid,ppid,user,cmd | sort -nr"

alias boothistory='for wtmp in `ls -t /var/log/wtmp*`; do last reboot -f $wtmp; done'

alias listopenports='sudo netstat -nape --inet'

#alias recursivetouch='find . -exec touch {} \;'

alias superfind='sudo find / ! \( -path /proc -prune -o -path /tmp -prune -o -path /dev -prune -o -path /mnt -prune \) -name'

# List all users (even those not logged in.) This also includes daemons/special accounts.
alias listallusers='cat /etc/passwd | cut -d ":" -f1 | sort'

# Unpacking aliases
alias untarbz2='tar -vxjf'
alias untargz='tar -vxzf'

# The next 3 alias help with uninstalling of software by showing what was created after the installation.
alias installpre="sudo find / ! \( -path /proc -prune -o -path /tmp -prune -o -path /dev -prune -o -path /mnt -prune \) > /tmp/install.pre"
alias installpost="sudo find / ! \( -path /proc -prune -o -path /tmp -prune -o -path /dev -prune -o -path /mnt -prune \) > /tmp/install.pos"
alias installdiff="diff /tmp/install.pre /tmp/install.pos | grep \"^>\" | sed \"s/^> //g\""

# upgrade ubuntu
alias up="sudo apt-get update && sudo apt-get upgrade"

# Fix the terminal when it contains unreadable characters 'gibberish'
alias vtn='echo "X[mX(BX)0OX[?5lX7X[rX8" | tr "XO" "\033\017"'

# Puts the cpu under a high load by sending a bunch of data to /dev/null
alias putcpuathighload='cat /dev/urandom > /dev/null'

# sorts files by the line length in ascending order. Use like this: sortbylinelength filename.txt
sortbylinelength() { perl -e 'print sort {length $a <=> length $b} <>' $*; }

# Just like in Red Hat you can control the start and stop of daemons with the service command
service () { sudo /etc/init.d/$*; }

# runs a command n times: runloop 100 "ls a.out"
runloop () { for i in `seq 1 $1`; do $2; done; }

# view the log file for every login attempt made to the system
alias viewauthlogs="cat /var/log/auth.log | tac | less"

# view the log file for every kernel error message that the system logged
alias viewkernlogs="cat /var/log/kern.log | tac | less"

GNOME with OS X Theme and Icons

2007-03-19T22:40:00.000-04:00

I am playing today with a nice set of themes and icons to change my ubuntu's default brown/human theme and icons. To be honest ubuntu needs to move on with whole brown thing. What can I say love the distro but hate the colors. Thank goodness for gnome and been able to customize my desktop.

Here is the nice OS X theme you see on the picture that gives you a similar look and ~~feel~~ of the Mac. Be sure to also download the OS X Icons to go with it.

Just unpack the two compressed files into the appropriate directory.
Themes are unpacked in: ~/.themes
Icons are unpacked in: ~/.icons

You could also unpack them in: /usr/share/themes and /usr/share/icons to make the theme/icons available to root and all users of your machine.

Wish you were here

2007-03-02T23:59:00.000-05:00

Its hard to do work when your mind wonders in the wallpaper set by your desktop. I am running GNOME 2.16.1 as seen by the obvious icons and panels shown on my desktop. My setup is dual flat Dell monitors running at a desktop size of 3600x1200 with an ATI 9800 PRO video card. I have download tons of free wallpapers from deviantART and placed them in a folder. What I have done lately is a startup script that selects a random image from my wallpaper folder and sets it as my wallpaper. Check it out:

In order to use the script, save the script below and modify the WALLPAPER_DIR variable to reflect the location where you saved all the wallpaper images. Go to: System --> Preferences --> Sessions [Startup Programs]. Then "Add" the script to the list so that it starts up when GNOME gets loaded.


#!/bin/bash
WALLPAPER_DIR="/home/albert/wp"
find "$WALLPAPER_DIR" -iname '*.jpg' -o -iname '*.jpeg' -o -iname '*.png' > /tmp/wallpapers
LINE=`cat /tmp/wallpapers | wc -l`
((LINE=RANDOM%LINE+1))
WALLPAPER=`sed -n "$LINE"p /tmp/wallpapers`
gconftool -t str -s /desktop/gnome/background/picture_filename "$WALLPAPER"

I blog therefore I am opinionated

2007-03-01T21:54:00.000-05:00

Hurray, my first entry in Google Blogger. My wish is to use this blog to document my Linux ups and downs. I will mainly cover the Ubuntu distribution but chances are other distributions will slide through. Check my "About me" page to see what I am passionate of.

I have been an Ubuntu user since the "Hoary Hedgehog" days or around April of 2005. My first contact with Linux came in 1999 when I was exposed to Mandriva formerly known as Mandrake. The feeling of KDE left me with a good impression of how equal Linux was to Windows from the desktop point of view. I even tried Kubuntu in the early stage and used it for about 6 months. What really dragged me back to Windows when I was using Mandrake was the fact I didn't understand much of the RPM packaging system. Later on I decided to give Linux another shot and ended up installing Kubuntu and then Ubuntu. The simplicity of the GNOME environment was a selling point for me as well as how easy was to work with Debian packages. At this point I was sold to the idea of Linux and haven't given a step back into Windows.