viewnior – another image viewer on Linux (with support for GIF)

Here is another Linux viewer (Image) that is worth a mention. URL : <a href="http://xsisqox.github.com/Viewnior">http://xsisqox.github.com/Viewnior

Description :

Viewnior is an <a class="zem_slink" title="Image viewer" rel="wikipedia" href="http://en.wikipedia.org/wiki/Image_viewer">image viewer program. Created to be simple, fast and elegant.  It&#8217;s minimalistic interface provides more screen space for your images. Among  its features are:

• Fullscreen & Slideshow
• Rotate, flip, save, delete images
• Animation support
• Browse only selected images
• Navigation window
• Simple interface
• Configurable <a class="zem_slink" title="Mouse (computing)" rel="wikipedia" href="http://en.wikipedia.org/wiki/Mouse_%28computing%29">mouse actions

The best part about the viewer is the ability to display gif inherently. Worth a look if you are using a lot of gif images.

bash script to run a command and take screenshot in every loop.

Couple of days back, I had posted a command to display a stop timer with bash and echo. There I had also put the following gif file:

<img class="size-medium wp-image-2555" title="bash screenshot for the script output" src="http://blog.amit-agarwal.co.in/wp-content/uploads/2010/09/temp-300x170.gif" alt="bash screenshot for the script output" width="300" height="170" />

Here the tricky part was to capture the jpg&#8217;s to create the gif file.

Preparation:

1. Rename the terminal to aka – amit-capture

2. Execute the command once with the import command and check the output and jpg&#8217;s

   Continue reading

bash – echo command with option to display the output on the same line.

Here is a nice little trick to display the output in the same line :

  <td>
    <div class="bash codecolorer">
      &nbsp;<span class="kw3">echo</span> <span class="re5">-ne</span> <span class="st0">"output\<span class="es1">\r</span>"</span>
    </div>
  </td>
</tr>

The trick here is simple, first we disable the <a class="zem_slink" title="Newline" rel="wikipedia" href="http://en.wikipedia.org/wiki/Newline">newline printed by <a class="zem_slink" title="Echo (command)" rel="wikipedia" href="http://en.wikipedia.org/wiki/Echo_%28command%29">echo command with the &#8221;-n&#8221; option and then we enable the interpretation of the <a class="zem_slink" title="Backslash" rel="wikipedia" href="http://en.wikipedia.org/wiki/Backslash">backslash characters with the &#8221;-e&#8221; option. As the &#8221;\r&#8221; is used as <a class="zem_slink" title="Carriage return" rel="wikipedia" href="http://en.wikipedia.org/wiki/Carriage_return">carriage return which brings you to the start of the line without the newline (like in <a class="zem_slink" title="Typewriter" rel="wikipedia" href="http://en.wikipedia.org/wiki/Typewriter">typewriter), we will use the same to get the desired effect. So, if you wanted a stopwatch for a 100 seconds on the console then this simple bash <a class="zem_slink" title="For loop" rel="wikipedia" href="http://en.wikipedia.org/wiki/For_loop">for loop would do the same:

cURL – Tutorial

Here are linkw to two nice tutorials on curl and how to use curl to login before we try to fetch a page. Hope you find them useful.
http://curl.haxx.se/docs/httpscripting.html

http://www.youtube.com/watch?v=XcgQUsorF_8

http://scriptasy.com/php_11/tutorial-curl-login_44.html

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Handy one-liners for SED

Here are some links to sed one liners, pretty useful if you want to use the power of sed.

<a href="http://www.freearchive.org/o/dd1ebea77f64bdef5982d50e868990202b0bf6f21b42e26ebb0ab1011d6ce546">http://www.freearchive.org/o/dd1ebea77f64bdef5982d50e868990202b0bf6f21b42e26ebb0ab1011d6ce546

<a href="http://www.unixguide.net/unix/sedoneliner.shtml">http://www.unixguide.net/unix/sedoneliner.shtml
<a href="http://sed.sourceforge.net/sed1line.txt">http://sed.sourceforge.net/sed1line.txt <a href="http://www.thegeekstuff.com/2010/06/bash-array-tutorial/">

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