The Danesh Project » Ubuntu

How to convert jpegs to pdf in Ubuntu

Danesh — Mon, 07 May 2012 08:37:34 +0000

Had a few documents to scan to PDF urgently today but to my surprise all the cybercafes around my neighborhood didn’t provide scan to PDF service. The best they could do was scan to jpeg. Hmmm…why?

Thanks to Linux I had a solution. Scan the docs to jpeg, then convert the jpegs to PDF using imagemagick. Worked like a charm.

Here’s how, on my Ubuntu 12.04 LTS

Install the imagemagick package if you don’t already have it.

:~$ sudo apt-get install imagemagick
Convert a single file.

:~$ convert scan.jpeg result.pdf
Convert multiple files.

:~$ convert -adjoin scan*.jpeg result.pdf
or

:~$ convert -adjoin scan1.jpeg scan2.jpeg result.pdf

Did it work for you? Do you have an alternative solution?

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Ubuntu 11.04 blank screen on boot. SOLVED

Danesh — Wed, 25 May 2011 06:40:15 +0000

Try these steps if you are experiencing a blank screen during boot or install of Ubuntu 11.04 Natty Narwhal.

1. LiveCD boots into a blank screen.

When you see the boot menu when you boot LiveCD, hit F6 and select the “nomodeset” option.

2. Boots into a blank screen after install.

Reboot and keep your finger on the “SHIFT” key till you get the grub menu. Highlight the first entry and replace “quiet splash” with “nomodeset” . Hit CTRL + X to continue booting. Once logged in install the latest Graphics drivers. System -> Administration -> Additional Drivers

DONE. Hope it works for you, it did for me.

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Restart network service in Ubuntu

Danesh — Mon, 21 Feb 2011 02:26:02 +0000

Here’s how to restart the network service on Ubuntu without restarting the OS

:~$ sudo /etc/init.d/networking restart

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Adobe Flash Player 10.2 released

Danesh — Fri, 11 Feb 2011 04:03:38 +0000

Adobe Flash Player 10.2 has been released and comes with some spanking new features.

It now supports Stage Videos which allows Flash to utilize your machines’s hardware acceleration features thus greatly improving performance.

10.2 also introduces support for multiple monitors. No more headaches when trying to multi-task while watching a video, this is when you can only play flash videos on one screen and not the other.

Another cool feature is the support for native mouse cursors. Developers can now design and implement custom cursors for their work. I see this really useful for educational software.

And finally some sub-pixel rendering to improve text in your flash videos. Advertisers will love this more…..

Let your browser update your flash player or grab it manually from Adobe.

If you’re on Ubuntu, simply run the command below to get updated.

#> sudo apt-get update
#> sudo apt-get upgrade

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Dual pane view in Nautilus

Danesh — Sun, 24 Oct 2010 17:10:33 +0000

The Gnome file manager Nautilus has a cool dual pane view which makes moving/copying files much easier. Simply hit f3 to bring up the dual pane view, right click on a file and either move/copy the file to “other pane”. However, unlike KDE, Gnome only allows you to move/copy to “home”, “desktop” and “other pane”.

KDE does it slightly different. when you right click on a file you are be able to move/copy files to any location on the system . It also remembers you recently use destinations to save you time on your next move/copy.

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How to Fix Ubuntu 10.10 VirtualBox Guest Additions Problems

Danesh — Mon, 27 Sep 2010 14:08:07 +0000

If you’re trying to run Ubuntu 10.10 Beta on your VirtualBox, you’re most likely having issues with the screen resolution. Installing the default VirtualBox client doesn’t quite help. Try the steps below,

1. Open terminal and enter the following command:

#sudo apt-get update #sudo apt-get install build-essential linux-headers-$(uname -r) #sudo apt-get install virtualbox-ose-guest-x11

2. Once installation is finished, restart your VirtualBox machine.

3. Go to System –>Preferences –>Monitors and change the resolution of your screen. You might be able to change the resolution but the screen will re-size properly when you maximize.

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Ubuntu mirrors up and improved!

Danesh — Thu, 29 Apr 2010 05:03:44 +0000

With the recent internet issues, byte craft’s local Ubuntu mirror was not being up2date due to overlapping cron jobs.

They have since moved to ubumirror running on apache/ngix and all seems good. Releases are on a 3 hour sync and archives 4 hours sync.

Grab your CD images HERE.Enjoy the speed.

via @angch from Byte Craft .

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Ubuntu 9.10 released

Danesh — Sun, 01 Nov 2009 16:51:57 +0000

Ubuntu 9.10 codenamed “Karmic Koala” was released 2 days back.

Grab a copy from a local Malaysian mirror listed below or from the official download page.

OSCC

MMU

ByteCraft

alternatively if you’re a Kubuntu user, grab your copy here.

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How to setup an OpenSSH Server on Ubuntu 9.04 Jaunty Jackalope

Danesh — Thu, 23 Jul 2009 17:08:29 +0000

Here’s a simple walkthrough to setup an OpenSSH server on Jaunty together with 2 basic hardening options you should apply.

1. Install the OpenSSH server.

Fire up a console and run the command below. This will install the required binaries and packages for the OpenSSH server.

apt-get install openssh-server

2. Get some basic hardening in by disabling “root” login and restricting access to specific accounts. All changes are to the “/etc/ssh/sshd_config” configuration file.

vi the “/etc/ssh/sshd_config” file and apply the changes below.

Look for "PermitRootLogin yes"
and change it to
"PermitRootLogin no"

Start a new line and add the line below. “danesh” is my user name, you should replace it with your own user name. You can add multiple user names by seperating each user name with a space.

AllowUsers danesh user1 user2

3. Restart your shiny new OpenSSH server and you are good to go.

Run the command below to restart the OpenSSH server.

sudo /etc/init.d/ssh restart

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Launchpad is now open source

Danesh — Tue, 21 Jul 2009 18:00:46 +0000

This surely comes as good news to all Ubuntu fans out there. Canonical today made Launchpad open source under the GPLv3 license. As promised.

If you didn’t already know, Launchpad is a project hosting and collaboration platform for software which provides access through its web interface or through its APIs. Users simply need an account to enjoy the suite of services provided by the then close sourced platform. Bug tracking, code hosting, code review, packaging, translation and community support. Everyone has their project space and the ability to easily distribute their packages through PPAs.

Canonical has no plans to package Launchpad as of now for easy deployment. However, you can still download the source and compile it as always. Also, Launchpad will only run on Hardy and Jaunty so getting it to run on other Linux distros will certainly require some extra work.

New versions of Launchpad are released every month, in return users never miss out on new features. With the community being able to contribute now, development’s going to pick up and we can most certainly hope for a flood of new features to come out of Launchpad moving forward.

The Launchpad platform is something most of Canonical’s competitors don’t currently provide to their users. This puts it ahead of the competition. openSUSE is the pretty close with their excellent build service platform but the general user base is smaller.

Follow the Launchpad community on IRC in channel #launchpad-dev on irc.freenode.net or at dev.launchpad.net.

Source: Canonical | Ubuntu

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