Arts on Amit Agarwal Linux Blog

convert tabs to spaces, the easy way

Mon, 08 Jul 2013 01:32:03 +0000

Lots of times you want to convert tabs to spaces and sometimes from a shell script, if that is the case, then simple solution is “tidy“. First you need to install tidy as follows:

sudo yum install tidy

and then you can use the command tab2space.

tab2spcae

This will print the output to STDOUT by default which you can redirect if you want.

C program to get the ascii string from a string

Wed, 25 Jul 2012 06:16:12 +0000

Example diagram of the printf function in the C programming language (Photo credit: Wikipedia)

Lot of times, you would like to get the complete string in hex or ascii format and if you are one of them then this is something that will be helpful for you 🙂

Example output:

lp-amita[d=~/bin]> ./ascii aamit
String – aamit, Length – 5

DIY- Photos at home (Beautiful and Magical)

Wed, 17 Nov 2010 07:12:16 +0000

Requirements:

DSLR Nikon D5000
Some Sparkles of different colors
2x100W Bulbs

and some imagination

Results:

Fantastic Photos with beautiful effects.

[][1]

Sparkles

[][2]

Sparkles

[][3]

Sparkles

[][4]

Sparkles

[][5]

Sparkles

[][6]

Sparkles

[][7]

Sparkles

[][8]

Sparkles - Heart

More cloud photos for your eyes. (amit-agarwal.co.in)
Build a DIY Photo Booth that Fits in a Duffel Bag [DIY] (lifehacker.com)
Digitize Your Old Film Strips with a DIY Negative Duplicator [DIY] (lifehacker.com)
DIY Photo Magic: How to Turn Black and White Photos into Full Color Images! (content.photojojo.com)

Flower photos for you :)

Fri, 05 Nov 2010 06:53:01 +0000

Here are few more photos that I took at my home with my favourite Nikon DSLR D5000. Hope you like them.

[][1]

Flower

[][2]

Flower

[][3]

Flower

[][4]

Flower

More cloud photos for your eyes. (amit-agarwal.co.in)
Low-end used Nikon DSLR for a beginner (ask.metafilter.com)
Revised PhotoTrackr Plus works with Nikon D90, D3100, D5000 and D7000 (engadget.com)
Kids Flower Arranging Exhibition, Revisited (regex.info)
Nikon D3100 DSLR hands-on (engadget.com)

Free Calendar for October 2010

Thu, 30 Sep 2010 02:16:32 +0000

Hope you like my work with gimp and Nikon D5000 .

<a href="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/09/calOct10.jpg">Download Link<div class="zemanta-pixie" style="margin-top: 10px; height: 15px;"><a class="zemanta-pixie-a" title="Enhanced by Zemanta" href="http://www.zemanta.com/"><img class="zemanta-pixie-img" style="border: medium none; float: right;" src="http://img.zemanta.com/zemified_e.png?x-id=2104687a-c8b4-4199-944e-69204d710f76" alt="Enhanced by Zemanta" /><span class="zem-script more-related pretty-attribution">

Photos you can take at home and still stunning.

Sun, 19 Sep 2010 12:08:18 +0000

Here are results of some more experiments that I did.

Setup:

100 Watt <a class="zem_slink" title="Incandescent light bulb" rel="wikipedia" href="http://en.wikipedia.org/wiki/Incandescent_light_bulb">Light Bulb

One Bowl/Plate/Cup (whatever you wish)

<a class="zem_slink" title="Camera" rel="wikipedia" href="http://en.wikipedia.org/wiki/Camera">Camera (<a class="zem_slink" title="Nikon D5000" rel="wikipedia" href="http://en.wikipedia.org/wiki/Nikon_D5000">Nikon D5000)

Some balls (These balls come in very small size and you need to keep them in water. Once kept in water for 10-15 days they become 20-30 times of their original size. Sorry, I don’t know the name as they were gifted to me. In <a class="zem_slink" title="India" rel="geolocation" href="http://maps.google.com/maps?ll=28.6133333333,77.2083333333&spn=10.0,10.0&q=28.6133333333,77.2083333333%20%28India%29&t=h">India it is quite easy to find, not sure about other countries).

New entry – My DSLR from Nikon… just loving it.

Sun, 29 Aug 2010 08:41:59 +0000

For last couple of months, I was thinking of taking a <a class="zem_slink" title="Digital single-lens reflex camera" rel="wikipedia" href="http://en.wikipedia.org/wiki/Digital_single-lens_reflex_camera">DSLR. I had a entry level DSLR from <a class="zem_slink" title="Fujifilm" rel="homepage" href="http://www.fujifilm.com/">FujiFilm <a class="zem_slink" title="FinePix S9100" rel="wikipedia" href="http://en.wikipedia.org/wiki/FinePix_S9100">S9600(which now I am planning to sell off). This is a very nice <a class="zem_slink" title="Camera" rel="wikipedia" href="http://en.wikipedia.org/wiki/Camera">camera indeed, but I had to have a better camera. So, I searched and researched and finally it came down to list of few things I wanted: a camera with couple of features, a <a class="zem_slink" title="Zoom lens" rel="wikipedia" href="http://en.wikipedia.org/wiki/Zoom_lens">zoom lens to begin with. So, after the discussion with one of my friends (Murali), thanks to him I have got my SLR (<a class="zem_slink" title="Nikon D5000" rel="wikipedia" href="http://en.wikipedia.org/wiki/Nikon_D5000">Nikon D5000). Its a dream come true. Here are some snaps of the box.

How To Run Subscriber-Only Competitions on Your Blog

Tue, 08 Jun 2010 09:13:38 +0000

: Image by catspyjamasnz via Flickr

A Guest Post by David Cleland from TotalApps.

In 2006 I proudly started my first blog, DigMo! It was <a class="zem_slink freebase/guid/9202a8c04000641f800000000003ac3a" title="Technology" rel="wikinvest" href="http://www.wikinvest.com/industry/Technology">technology, it was creativity, it was music and it was <a class="zem_slink freebase/guid/9202a8c04000641f80000000000141ab" title="Education" rel="wikipedia" href="http://en.wikipedia.org/wiki/Education">education. Despite it being a bit of blog soup I was pleased at how quick the site grew but within a few years it reached a critical point beyond which I really couldn’t get the traffic to grow. The site was frankly far too general to appeal to a specific community.

vim – get names of the scripts and the details from the command line

Wed, 19 May 2010 16:38:42 +0000

For the below commands either you can set the two variables in bold and then run the scripts or change the following in the commands and run the scripts.

If you have html2text installed then you can use this:

wget -o /dev/null -O $script_id_file ’http://www.vim.org/scripts/script.php?script_id=’$script_id |html2text

If you dont have html2text installed then you can use:

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core dump checking script.

Sun, 11 Apr 2010 09:11:54 +0000

I was testing a program which crashing every now and then. It is very difficult in such scenarios to keep looking for the <a class="zem_slink" title="Core dump" rel="wikipedia" href="http://en.wikipedia.org/wiki/Core_dump">core file or keep checking for the running process. So I wrote this simple script that can check for core file in the particular path and keep running until it finds one. You can hack this script to send a mail once the core is found. This is a very simple script. And this should work on solaris too..

10 Keyboard Techniques To Create Cool Symbols

Sat, 03 Apr 2010 02:35:46 +0000

<img src="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/08/Thumbnail3.png" alt="Thumbnail" align="bottom" />All of us use the keyboard to create symbols daily. Look at the thumbnail. That’s a simple symbol created with just four keys.

Symbols existed even before the alphabets. Over the years they have been part of folklore, myths and legends. Some have stayed on as indelible marks. Some, like the swastika, are better forgotten. Symbols have remained potent. If you doubt their visual power, then look no further than logos. People shell out millions for a three-pointed star on a sleek hood or a prancing horse. Puzzled? The first one is the Mercedes logo and the latter is Ferrari’s.

[Movie Review]RANN- predictable from Puttu

Sun, 14 Mar 2010 14:30:12 +0000

IdealisticHarshvardhan mallik(<span style="font-size: medium;"> <span style="color: #ff420e;">B) and his son Jay(<a class="zem_slink freebase/en/sudeep" title="Sudeep" rel="wikipedia" href="http://en.wikipedia.org/wiki/Sudeep">Sudeep), find their channel loosing out on <span style="color: #9999ff;">popularity ratings for a rival <span style="color: #7e0021;">channel smartly run by his X-employee <a class="zem_slink freebase/en/mohnish_behl" title="Mohnish Behl" rel="imdb" href="http://www.imdb.com/name/nm0046894/">Mohnish Behl. Jay is provoked and hence in an attempt to rebuild and regain the foothold,he <span style="color: #00ae00;">plans a <a class="zem_slink freebase/en/sting_operation" title="Sting operation" rel="wikipedia" href="http://en.wikipedia.org/wiki/Sting_operation">sting operationwith aspiring PM **<span style="color: #280099;">Manoj Pandey**(<a class="zem_slink freebase/en/paresh_rawal" title="Paresh Rawal" rel="imdb" href="http://www.imdb.com/name/nm0712546/">Paresh Rawal) and his <span style="color: #00cccc;">Co-Bro industrialistRajat Kapoor. Everybody gets their share,but end up <span style="color: #0099ff;">gobbling the truth. How is that revealed and what are their<span style="color: #94bd5e;">repurcussions forms the rest.