# Post details

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Rocks 6.1 – Login Node Monitor

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 6.1.1 (with CentOS 6.3 and GE 2011.11p1). As has been a common practice for several years now, a full version of Operating System was installed. These instructions may very well work for you (or your institution), on Rocks-like or other linux … Continue reading Rocks 6.1 – Login Node Monitor

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Twitter – Status update with API 1.1 using PHP

Disclaimer The instructions/steps given below worked for me with several Twitter accounts. As has been a common practice for several years now, my server has a full version of Operating System (RHEL 6.4 in this case) installed. These instructions may very well work for you. Please note that if you decide to use these instructions … Continue reading Twitter – Status update with API 1.1 using PHP

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Rocks 6.1 – IPoIB

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 6.1 (with Service Pack 1, CentOS 6.3 and GE 2011.11p1) – as has been a common practice for several years now, a full version of Operating System was installed. The HPC cluster (wigner) used to prepare this documentation has Mellanox 56 … Continue reading Rocks 6.1 – IPoIB

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Rocks 5.4.2 – Scheduling GPU jobs via SGE

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 5.4.2 (with CentOS 5.5 and SGE 6.2u5) – as has been a common practice for several years now, a full version of Operating System was installed. These instructions may very well work for you (or your institution), on Rocks-like or other … Continue reading Rocks 5.4.2 – Scheduling GPU jobs via SGE

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SC12 in Salt Lake City

The description of the conference didn’t change – SC12 is still The International Conference for High Performance Computing, Networking, Storage and Analysis, but the location did: Salt Lake City in Utah, known to the historically inclined as the crossroads of the west. I had never been to SLC ever before but the last time I … Continue reading SC12 in Salt Lake City

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Rocks 5.4.2 – HPCC 1.4.1 benchmark with GCC 4.1.2

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 5.4.2 (with CentOS 5.5) – as has been a common practice for several years now, a full version of Operating System was installed. These instructions may very well work for you (or your institution), on Rocks-like or other linux clusters. Please … Continue reading Rocks 5.4.2 – HPCC 1.4.1 benchmark with GCC 4.1.2

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Rocks 5.4.2 – HPL 2.0 benchmark with GCC 4.1.2

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 5.4.2 (with CentOS 5.5) – as has been a common practice for several years now, a full version of Operating System was installed. These instructions may very well work for you (or your institution), on Rocks-like or other linux clusters. Please … Continue reading Rocks 5.4.2 – HPL 2.0 benchmark with GCC 4.1.2

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Rocks 5.4.2 – Ganglia’s gmond Python module for monitoring NVIDIA GPU

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running Rocks 5.4.2 (with CentOS 5.5) – as has been a common practice for several years now, a full version of Operating System was installed. These instructions may very well work for you (or your institution), on Rocks-like or other linux clusters. Please … Continue reading Rocks 5.4.2 – Ganglia’s gmond Python module for monitoring NVIDIA GPU

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CUDA/C – Hello, World!

Disclaimer The instructions/steps/programs given below worked for me (and Michigan Technological University) running site licensed Red Hat Enterprise Linux 6.2, with NVIDIA CUDA SDK 4.1.28, NVIDIA GPU Driver v290.10 & two NVIDIA GeForce GTX 570 cards – as has been a common practice for several years now, a full version of Operating System was installed … Continue reading CUDA/C – Hello, World!

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RHEL 6.2 – Ganglia’s gmond Python module for monitoring NVIDIA GPU

Disclaimer The instructions/steps given below worked for me (and Michigan Technological University) running site licensed Red Hat Enterprise Linux 6.2 – as has been a common practice for several years now, a full version of Operating System was installed and all necessary patches/upgrades have been applied. These instructions may very well work for you (or … Continue reading RHEL 6.2 – Ganglia’s gmond Python module for monitoring NVIDIA GPU

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SC11, fond memories from a fantastic nerd fest

Apart from what I could infer from the title, SC11, The International Conference for High Performance Computing, Networking, Storage and Analysis, that it was being held in a city that I had already been to once before (and had gained some familiarity, with at least parts of it) as part of The Great American Road … Continue reading SC11, fond memories from a fantastic nerd fest

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BASH – A smart extract utility

Why this script? As a systems administrator or as someone who dabbles in compilation technologies, it often becomes necessary to extract one or more variety of compressed files/folders. This script will automagically handle the options necessary for uncompressing different kinds of compressions. The script #! /bin/bash # # BASH script to automagically uncompress different kinds … Continue reading BASH – A smart extract utility

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MPICH2 MPI with GNU compilers

MPI For my understanding of what MPI is &/or does, please refer to this post. Compiling MPICH2 (v1.3.1) with GNU Compilers (GCC v4.1.2) mkdir $HOME/tmp/ Download MPICH2 from the Argonne National Laboratory Save mpich2-1.3.1.tar.gz in $HOME/tmp/ cd $HOME/tmp/ tar -zxvpf mpich2-1.3.1.tar.gz cd mpich2-1.3.1   ./configure –prefix=$HOME/mpich2/1.3.1/gcc/4.1.2 –enable-f77 –enable-f90modules   make   make install Once the … Continue reading MPICH2 MPI with GNU compilers

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Subversion – Changing Repository Location

Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open source … Continue reading Subversion – Changing Repository Location

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MAC – Quick Fix For WPA2 Password Prompt Issue @ Michigan Tech

Every once in a while, my Apple MacBook Pro – running Mac OS X [Snow Leopard] 10.6.4 – starts prompting for password before connecting to Michigan Tech‘s (@MichiganTech) WPA2 Enterprise network. While it’s not a difficult task to enter the password once [or many times] a day, it nevertheless is painful. After some googling around … Continue reading MAC – Quick Fix For WPA2 Password Prompt Issue @ Michigan Tech

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BASH – Extracting Subversion Log

Subversion Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open … Continue reading BASH – Extracting Subversion Log

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BASH – Router’s Public IP Address For Mac

Why This Script? While in its simplest form of usage, this script will only print out the public (& private) IP address along with the SSID to which the machine is connected to, the results therefrom can be used for a variety of other purposes – I will let your imagination fly you to your … Continue reading BASH – Router’s Public IP Address For Mac

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BASH – vasp2xyz, a script to extract coordinates from VASP

Users of VASP are often familiar with the struggles/hardships to easily visualize the coordinates from the output file [OUTCAR]. To that effect, I wrote the following script [with help at a crucial stage from Pat Krogel, CEC @ MTU]. It expects OUTCAR & POSCAR from a calculation to be in the same folder and when … Continue reading BASH – vasp2xyz, a script to extract coordinates from VASP

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BASH – Wrappers For qstat In NPACI ROCKS 5.2.2

What is ROCKS? Rocks Cluster Distribution (originally called NPACI Rocks) is a Linux distribution intended for high-performance computing clusters. It was started by NPACI and the SDSC in 2000, and was initially funded in part by an NSF grant (2000-2007) but is currently funded by the followup NSF grant. Rocks was initially based on the … Continue reading BASH – Wrappers For qstat In NPACI ROCKS 5.2.2

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PHP – Computing Total Travel Distance From GPS Tracks

Amongst other things, I like to keep a detailed track of where I have been [especially during hiking in the woods, venturing into areas that I have never been before, etc.]. For this purpose, I have configured my Garmin GPSMap 60CSx to record location/date-time data every three seconds and a while ago, I described another … Continue reading PHP – Computing Total Travel Distance From GPS Tracks

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CSS – Floating Next/Previous Links On Images

Why is this necessary, you ask? Ever since I first used PixelPost and deliciously delicious theme, I had been wanting to do something similar for my own photo gallery. Since PixelPost [nor any other photoblog software] ever came close to satisfying my needs, I ended up writing [still a work in progress to some extent] … Continue reading CSS – Floating Next/Previous Links On Images

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Producing Script r In LaTeX Expressions

When we have so many letters already, why would one need this fancy little Script r? While typesetting mathematical expressions that govern our (beautiful & elegant) physical universe, often one runs out of symbols and as such, it becomes necessary to use the same letter/character in different styles to convey the intended meaning. Electrodynamics and … Continue reading Producing Script r In LaTeX Expressions

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PHP – GPS Tracks In Google KML Format

Amongst other things, I have the habit of keeping a detailed track of where I have been and for this purpose, I use my Garmin GPSMap 60CSx. I have configured this GPS to save track information every 3 seconds. If this information can be written in KML format, then the tracks can be visualized using … Continue reading PHP – GPS Tracks In Google KML Format

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MySQL – Finding Locations Nearest To A Given Pair Of GPS Coordinates

Amongst other things, I have the habit of geotagging my photographs and for this purpose, I use my Garmin GPSMap 60CSx, an API I wrote to store tracks in MySQL & Geonames data in a MySQL [please refer to this if you wish to do so as well]. For completeness sake, the MySQL table structure … Continue reading MySQL – Finding Locations Nearest To A Given Pair Of GPS Coordinates

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PHP – Calculating Distance Between Two Locations Given Their GPS Coordinates

Amongst other things, I have the habit of geotagging my photographs and for this purpose, I use my Garmin GPSMap 60CSx, an API I wrote to store tracks in MySQL & Geonames data in a MySQL [please refer to this if you wish to do so as well]. For completeness sake, the MySQL table structure … Continue reading PHP – Calculating Distance Between Two Locations Given Their GPS Coordinates

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MySQL – Finding Nearest Record In Date/Time

Amongst other things, I have the habit of geotagging my photographs and for this purpose, I use my Garmin GPSMap 60CSx, an API I wrote to store tracks in MySQL & Geonames data in a MySQL [please refer to this if you wish to do so as well]. The work-flow might seem a bit complicated … Continue reading MySQL – Finding Nearest Record In Date/Time

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Importing Geonames.org Data Into MySQL

What is Geonames.org, you wonder? It’s a website [or an web-institution, if you like to phrase it that way] that provides – amongst other things – [pretty] useful information that maps geological data [country, region, city/town/village, etc.] to the GPS coordinates. The one database that I personally use corresponds to allCountries [download size is about … Continue reading Importing Geonames.org Data Into MySQL

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Subversion – Backing Up Repository

Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open source … Continue reading Subversion – Backing Up Repository

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Git – Migrating From Subversion

Citing their website, Git is a free & open source, distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Every Git clone is a full-fledged repository with complete history and full revision tracking capabilities, not dependent on network access or a central server. Branching and merging … Continue reading Git – Migrating From Subversion

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WebSVN To Monitor Subversion Repositories

Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open source … Continue reading WebSVN To Monitor Subversion Repositories

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Website Management With Subversion

Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open source … Continue reading Website Management With Subversion

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Subversion With Apache

Subversion (SVN) is a version control system initiated in 2000 by CollabNet Inc. It is used to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly-compatible successor to the widely used Concurrent Versions System (CVS). Subversion is well-known in the open source … Continue reading Subversion With Apache

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PERL – Retrieving Data From MySQL Databases In Different Servers

Let us consider the following (hypothetical/real) case: we have a fruit basket with an assortment of fruits in it. Over a period of time, let us suppose we accumulate so much fruit [will they not stink? may be – but that’s a problem beyond the scope of PERL & MySQL] that one basket can no … Continue reading PERL – Retrieving Data From MySQL Databases In Different Servers

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PHP – Storing GPS Track Points In MySQL

Though the term waypoint has come into fairly common use in recent times, the concept has existed for as long as we have been navigating. Waypoints have traditionally been associated with distinctive features of the physical world – such as mountains, rock formations, lakes, buildings, and so on. With the advancement of technology and times, … Continue reading PHP – Storing GPS Track Points In MySQL

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Logo In RSS Feed – In WordPress Blogs And Elsewhere

I have been having the need (or want, as you may see fit) to display a logo in my RSS feed – for my WordPress powered blog as well as home-cooked Showcase. Couple things one needs to keep in mind when designing such logos is the following (information summarized from here): Maximum value for width … Continue reading Logo In RSS Feed – In WordPress Blogs And Elsewhere

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PHP – Storing GPS Waypoints In MySQL

Though the term waypoint has come into fairly common use in recent times, the concept has existed for as long as we have been navigating. Waypoints have traditionally been associated with distinctive features of the physical world – such as mountains, rock formations, lakes, buildings, and so on. With the advancement of technology and times, … Continue reading PHP – Storing GPS Waypoints In MySQL

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String2Image – A Web Utility To Convert Strings Into Graphics

Why Strings As Graphics, you ask? There are a myriad of reasons and/or applications where strings need to converted to graphics and one such, probably most commonly seen, application is to put our email address on the web. We want it there but we don’t want anyone (the bots) stealing it. If nothing else, this … Continue reading String2Image – A Web Utility To Convert Strings Into Graphics

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WordPress – Plugin To Keep Track Of Visitors

I understand there are very many plugins available for WordPress that help keep track of a variety of stats. This one, wp-visitors, is simple and light-weight. Myself and couple friends (Adam & Karen and Tim Obermann) have been using it without any trouble – in some form or the other – for over a year … Continue reading WordPress – Plugin To Keep Track Of Visitors

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JavaScript – Hide/Unhide Entities With Scriptaculous

JavaScript is a scripting language widely used for client-side web development. It was the originating dialect of the ECMAScript standard. It is a dynamic, weakly typed, prototype-based language with first-class functions. JavaScript was influenced by many languages and was designed to look like Java, but be easier for non-programmers to work with. Although best known … Continue reading JavaScript – Hide/Unhide Entities With Scriptaculous

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WordCamp Ed – The Very First Edition

Since meeting Dave Lester in the not-so-recently held WordCamp New York, I had been eagerly looking forward to participating in WordCamp Ed – organized by the fine folks at Center for History and New Media [@ George Mason University] and supported by kind-hearted sponsors. Though the thought of not attending did cross my mind several … Continue reading WordCamp Ed – The Very First Edition

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WordPress – Legacy of comments.php For 2.7 And Beyond

During the State Of The Word address in not-so-recently held WordCamp New York, Matt Mullenweg gave a sneak preview of a plethora of new (and cool) features being included into the next WordPress release (2.7). I had since then been toying around with the almost β version (of nightly builds) for a while and now … Continue reading WordPress – Legacy of comments.php For 2.7 And Beyond

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PHP – Displaying Gravatars In A Non-WordPress Application

Citing their website, an Automattic.com joint:, A gravatar, or globally recognized avatar, is quite simply an avatar image that follows you from weblog to weblog appearing beside your name when you comment on gravatar enabled sites. Avatars help identify your posts on web forums, so why not on weblogs? It’s free and with one account, … Continue reading PHP – Displaying Gravatars In A Non-WordPress Application

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BASH – GZIP or BZIP2?

BASH is a free software Unix shell written for the GNU Project. Its name is an acronym which stands for Bourne-again shell. The name is a pun on the name of the Bourne shell (sh), an early and important UNIX shell written by Stephen Bourne and distributed with Version 7 Unix circa 1978, and the … Continue reading BASH – GZIP or BZIP2?

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PERL – Mapping Elements To Their Respective Arrays

Often times, a need arises where one has to search a bunch of arrays to find out to which one of them a given set of elements belong. Of course, life becomes a lot simpler if those arrays are unique (meaning any given element appears only in one of the arrays) and life may not … Continue reading PERL – Mapping Elements To Their Respective Arrays

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BASH – Wrappers For qstat In NPACI ROCKS

BASH is a free software UNIX shell written for the GNU Project. Its name is an acronym which stands for Bourne-again shell. The name is a pun on the name of the Bourne shell (sh), an early and important UNIX shell written by Stephen Bourne and distributed with Version 7 UNIX circa 1978, and the … Continue reading BASH – Wrappers For qstat In NPACI ROCKS

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PERL – Mapping An Element To Its Array

Disclaimer Often times, a need arises where one has to search a bunch of arrays to find out to which one of them a given element belongs. Of course, life becomes a lot simpler if those arrays are unique (meaning any given element appears only in one of the arrays) and life may not always … Continue reading PERL – Mapping An Element To Its Array

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(Word)Camping in New York City

Considering the fact that I have been using / playing with / hacking this beautiful piece of Open Source Software called WordPress for as long as I have been, it did surprise me quite a bit that it took me so long to attend my first WordCamp. Then again, I shouldn’t be that surprised – … Continue reading (Word)Camping in New York City

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WordPress – Different Sidebars In Different Places

It might, at some point in a WordPress powered blog, become necessary to a show some widgets/stuff in some places (the main page, archives, etc.) while show a different set of widgets/stuff in some other places (static pages – about me, product reviews, etc.). To keep track of things and may be understand the process … Continue reading WordPress – Different Sidebars In Different Places

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LaTeX2PDF – A Web Utility To Convert LaTeX Into PDF

Not liking something is NOT THE SAME as hating it. With above point in mind, I do not like MS Word. With first point still in mind, I do not dislike and/or hate people who like and/or use MS Word. I LOVE LaTeX – nerds/geeks don’t feel like doing something (be it as simple a … Continue reading LaTeX2PDF – A Web Utility To Convert LaTeX Into PDF

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Expect – Remote SSH Login

Expect is a UNIX automation and testing tool, written by Don Libes as an extension to the Tcl scripting language, for interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, ssh, and others. It uses UNIX pseudo terminals to wrap up sub-processes transparently, allowing the automation of arbitrary applications that are accessed over a … Continue reading Expect – Remote SSH Login

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PHP – Converting Strings To Images

One of the most primal needs of displaying strings as an image is during form submission and to make sure that a human being (although there is a finite probability that a monkey can accidentally type the same string correctly) types in the string. This form submission can be to accomplish one of many things … Continue reading PHP – Converting Strings To Images

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WordPress – Differing Number of Posts on Main Page and Archive/Search Pages

Disclaimer The instructions/steps given below worked for me running CentOS 4.0. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, … Continue reading WordPress – Differing Number of Posts on Main Page and Archive/Search Pages

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WordPress – Posts As News Clips Elsewhere

Disclaimer The instructions/steps given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading WordPress – Posts As News Clips Elsewhere

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Storing And Querying Information with PERL-MySQL

Disclaimer These instructions/steps worked for me and it may very well work for you on Sun OS / linux distributions. Please note that if you decide to use these instructions on your machine (either for this particular application and/or for other kind of information), you are doing so entirely at your very own discretion and … Continue reading Storing And Querying Information with PERL-MySQL

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Copyrighting Images With Images Using Adobe Photoshop

Disclaimer Below given instructions are what I used to copyright my images on my Apple MacBook Pro running OS X v10.5.x and these may very well work for you. However, please note that you are using these instructions at your very own risk and this website, sgowtham.com, is not responsible for any/all damage caused to … Continue reading Copyrighting Images With Images Using Adobe Photoshop

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Importing Comments From flickr.com Into Pixelpost

Disclaimer These instructions/steps worked for me running CentOS. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is responsible … Continue reading Importing Comments From flickr.com Into Pixelpost

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Importing Comments From flickr.com

Disclaimer These instructions/steps worked for me in CentOS 4.0. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is … Continue reading Importing Comments From flickr.com

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GMail, IMAP & PINE

Disclaimer The aforementioned instructions/steps worked for me running CentOS. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is … Continue reading GMail, IMAP & PINE

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File Uploads Via PHP : Specific MIME Types

Disclaimer These instructions/steps worked for me in CentOS. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is responsible … Continue reading File Uploads Via PHP : Specific MIME Types

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File Upload Via PHP

Disclaimer These instructions/steps worked for me in CentOS. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is responsible … Continue reading File Upload Via PHP

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PHP, MySQL, iCal, ICS

Disclaimer These instructions/steps worked for me in CentOS and MacBook Pro. It may very well work for you on Red Hat-like or other and Macintosh distributions. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, … Continue reading PHP, MySQL, iCal, ICS

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Apache, Virtual Hosts, HTTPS, Self-Signed Certificates

Disclaimer The aforementioned instructions/steps worked for me running CentOS. It may very well work for you on Red Hat-like distributions or otherwise. Please note that if you decide to use these instructions to update PHP/MySQL (or other packages) on your machine, you are doing so entirely at your very own discretion and that neither this … Continue reading Apache, Virtual Hosts, HTTPS, Self-Signed Certificates

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BASH – Sum of All File/Folder Sizes

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Sum of All File/Folder Sizes

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Backing Up And Restoring MySQL Databases

Disclaimer These instructions worked for me in CentOS 4.0. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions to back up and restore MySQL databases on your machines, you are doing so entirely at your very own discretion and that neither … Continue reading Backing Up And Restoring MySQL Databases

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MAC Address For Cameras?

MAC Address for a camera? I echo your questioning and feelings. And what follows below is my explanation for its necessity, advantages as well as disadvantages. Take for example a normal, advanced amateur photographer or even pro-photographers – it’s not uncommon for them to have more than one camera as part of their arsenal. One … Continue reading MAC Address For Cameras?

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CentOS 4.x : Upgrading PHP and MySQL

Disclaimer These instructions worked for me in CentOS 4.0. It may very well work for you on Red Hat-like or other distributions. Please note that if you decide to use these instructions, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor its author is responsible for any/all … Continue reading CentOS 4.x : Upgrading PHP and MySQL

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BASH – Read A File, One Line At A Time

Disclaimer The instructions/steps given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Read A File, One Line At A Time

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Kannada LaTeX Expressions – In Graphical Format

Disclaimer Not liking something is NOT THE SAME as hating it. With above point in mind, I do not like MS Word. With first point still in mind, I do not dislike and/or hate people who like and/or use MS Word. I LOVE LaTeX – nerds/geeks don’t feel like doing something (be it as simple … Continue reading Kannada LaTeX Expressions – In Graphical Format

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Garmin GPSMap 60CSx – My New Travel Companion

It was a mid Summer early afternoon – 07.07.07 to be precise – that I was out in the Silver Mountains area searching for a much sought after (by myself) Sturgeon Falls/Gorge. The parking area and trail head were very well marked but the trail itself disappeared after about 300 feet into the woods. Fortunately, … Continue reading Garmin GPSMap 60CSx – My New Travel Companion

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NFS : Server & Client Set Up With AutoFS

Disclaimer There are very many options that can be used while exporting and mounting NFS partitions as well as while custom-configuring the firewall with IPTABLES. Please read through the man pages to see what fits best. Below given instructions are what I used to set up NFS within my internal network and these may very … Continue reading NFS : Server & Client Set Up With AutoFS

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NFS : Server & Client Set Up

Disclaimer There are very many options that can be used while exporting and mounting NFS partitions as well as while custom-configuring the firewall with IPTABLES. Please read through the man pages to see what fits best. Below given instructions are what I used to set up NFS within my internal network and these may very … Continue reading NFS : Server & Client Set Up

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Framing And Copyrighting Images With Adobe Photoshop

As mentioned in the previous write up along similar lines, most of us take photographs and many of us post them in this vast, nearly infinite internet. Inherent to this process is a desire to put our name on the pictures – either to protect them from plagiarism or to feed our ego or whatever … Continue reading Framing And Copyrighting Images With Adobe Photoshop

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BASH – Replace Space In Filenames With Underscore

Disclaimer The instructions/steps given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Replace Space In Filenames With Underscore

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Copyrighting Images With Adobe Photoshop

Most of us take photographs and many of us post them in this vast, nearly infinite internet. Inherent to this process is a desire to put our name on the pictures – either to protect them from plagiarism or to feed our ego or whatever other reason. There are many software and multiple ways to … Continue reading Copyrighting Images With Adobe Photoshop

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LaTeX Expressions – In Graphical Format

Disclaimer #0 Not liking something is NOT THE SAME as hating it. With above point in mind, I do not like MS Word – reasons for not liking it could actually be another blog entry and I will reserve it for some other day. With first point still in mind, I do not dislike and/or … Continue reading LaTeX Expressions – In Graphical Format

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BackupPC On Red Hat (Enterprise) Linux

Disclaimer #0 Below given instructions are what I used to get BackupPC (v3.0.0) compiled/running and these may very well work for you. However, please note that you are using these instructions at your very own risk and this website, sgowtham.com, is not responsible for any/all damage caused to your property, intellectual or otherwise. What is … Continue reading BackupPC On Red Hat (Enterprise) Linux

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PERL – Password Encryption

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading PERL – Password Encryption

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BASH – Sum Of All Integers Between Given Two Integers

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Sum Of All Integers Between Given Two Integers

79

HPL Benchmark For Single Processor Machines

Disclaimer Above given instructions are what I used to get HPL compiled/running and these may very well work for you. However, please note that you are using these instructions at your very own risk and this website, sgowtham.com, is not responsible for any/all damage caused to your property, intellectual or otherwise. What is HPL? Citing … Continue reading HPL Benchmark For Single Processor Machines

80

SIESTA, SMEAGOL, VASP and BlueGene/L

Well, some of you have been regular readers (and commentors) for my journal in this part of the e-world and such of those have known that I have been in Europe – Jülich, Germany – to be precise. However, while chatting with few of my friends, I noticed an incoherent idea as to why yours-truly … Continue reading SIESTA, SMEAGOL, VASP and BlueGene/L

81

Multiple EMails & FetchMail 101

Disclaimer Instructions given in this page are what I used to configure Fetchmail on my DELL Dimension 3000 desktop running Red Hat Enterprise Linux v4.4. These may very well be applicable to your computer, of other brand/model and/or using different Linux distribution. However, note that you are using these instructions at your very own risk … Continue reading Multiple EMails & FetchMail 101

82

PHP, MySQL & Pagination – With Tags

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading PHP, MySQL & Pagination – With Tags

83

PHP, MySQL & Pagination

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading PHP, MySQL & Pagination

84

BASH – Filename Toggle Case

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Filename Toggle Case

85

PenguiCon 4.0

Day 0 As planned, I woke up around 4 am and Kyle (along with Steve and Peter) were at my house around 6 am to pick me up. Journey started on scheduled and it was after a long time that I was sitting in the backseat. This (I mean sitting in the backseat) has its … Continue reading PenguiCon 4.0

86

BASH – Center Align A File

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Center Align A File

87

PERL – Disk Usage Reminder

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading PERL – Disk Usage Reminder

88

BASH – Router’s Public IP Address

BASH, AWK and SED BASH is a free software Unix shell written for the GNU Project. Its name is an acronym which stands for Bourne-again shell. The name is a pun on the name of the Bourne shell (sh), an early and important UNIX shell written by Stephen Bourne and distributed with Version 7 UNIX … Continue reading BASH – Router’s Public IP Address

89

C – Translate The Coordinates Along Any Given Axis

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS and various other distributions. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither … Continue reading C – Translate The Coordinates Along Any Given Axis

90

VASP, MPICH, Intel Compilers and Rocks

Much of the weekend was spent in some relaxation, shoveling snow (I have come to realize that this is a very good exercise – it can make one sweat even when it’s +10F outside!) and trying to debug the errors associated with execution of parallel version of VASP 4.6.28. However, same errors persisted and I … Continue reading VASP, MPICH, Intel Compilers and Rocks

91

BASH – Login Counter

Disclaimer The instructions/steps/scripts/methods given below worked for me running CentOS. It may very well work for you on other linux distributions, Red Hat-like or otherwise. Please note that if you decide to use these instructions on your machine, you are doing so entirely at your very own discretion and that neither this site, sgowtham.com, nor … Continue reading BASH – Login Counter