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	<title><![CDATA[BOL: Related items]]></title>
	<link>https://bioinformaticsonline.com/related/44279?</link>
	<atom:link href="https://bioinformaticsonline.com/related/44279?" rel="self" type="application/rss+xml" />
	<description><![CDATA[]]></description>
	
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	<guid isPermaLink="true">https://bioinformaticsonline.com/pages/view/42815/bioinformatics-in-africa-part7-tunisia</guid>
	<pubDate>Sat, 06 Feb 2021 21:25:09 -0600</pubDate>
	<link>https://bioinformaticsonline.com/pages/view/42815/bioinformatics-in-africa-part7-tunisia</link>
	<title><![CDATA[Bioinformatics in Africa: Part7 - Tunisia]]></title>
	<description><![CDATA[<p>Institut Pasteur de Tunis (IPT):<br />The IPT is a research institution founded in 1883. IPT is under the supervision of the Ministry of &nbsp;Health and is part of the Universit&eacute; El Manar of Tunis (Ministry of high Education). The missions &nbsp;of the institute are: Public Health Laboratory activities (PHL), Research on infectious diseases, and &nbsp;R/D on vaccines. Research programs are mainly oriented towards local health problems such as &nbsp;leishmaniais, viral hepatitis, and scorpion venoms. The &nbsp; group &nbsp; of &nbsp; Bioinformatics &nbsp; and &nbsp; Modelling &nbsp; of &nbsp; the &nbsp; IPT &nbsp; is &nbsp; hosted &nbsp; by &nbsp; the &nbsp;Laboratoire &nbsp;d&rsquo;Immunopathologie Vaccinologie et G&eacute;n&eacute;tique Mol&eacute;culaire &nbsp;(LIVGM), and exists since the &nbsp;beginning of 2005. Its present research activities include: genome annotation, EST clustering and &nbsp;modelling of the host/parasite response to Leishmania infection. It consists of two senior scientists, &nbsp;two PhD students and one MSc student</p><p>Centre&nbsp;de&nbsp;Biotechnology&nbsp;de&nbsp;Sfax&nbsp;(CBS):<br />Bioinformatics&nbsp;activity&nbsp;started&nbsp;at&nbsp;CBS&nbsp;in&nbsp;2001&nbsp;with&nbsp;the&nbsp;setting&shy;up&nbsp;of&nbsp;a&nbsp;research&nbsp;and&nbsp;service&nbsp;unit&nbsp;of&nbsp; bioinformatics.&nbsp;This&nbsp;unit&nbsp;currently&nbsp;includes&nbsp;one&nbsp;senior&nbsp;researcher,&nbsp;one&nbsp;engineer&nbsp;and&nbsp;four&nbsp;Phd&nbsp; students.&nbsp;Activities&nbsp;include&nbsp;sequence&nbsp;annotation&nbsp;(service)&nbsp;and&nbsp;three&nbsp;research&nbsp;programs:&nbsp;ab&nbsp;initio&nbsp; prediction&nbsp;of&nbsp;short&nbsp;eukaryote&nbsp;genes,&nbsp;statistical&nbsp;modelling&nbsp;by&nbsp;Bayesian&nbsp;networks&nbsp;approach&nbsp;of&nbsp;signal&nbsp; transduction&nbsp;pathways&nbsp;and&nbsp;statistical&nbsp;analysis&nbsp;of&nbsp;human&nbsp;sequence&nbsp;variation&nbsp;data&nbsp;(haplotype&nbsp; reconstruction&nbsp;and&nbsp;linkage&nbsp;disequilibrium).&nbsp;Activities&nbsp;of&nbsp;the&nbsp;Bioinformatics&nbsp;unit&nbsp;could&nbsp;be&nbsp;found&nbsp;at&nbsp; the&nbsp;website:&nbsp;http://www.cbs.rnrt.tn/&nbsp;and&nbsp;the&nbsp;research&nbsp;activity&nbsp;report&nbsp;is&nbsp;available&nbsp;under&nbsp;request&nbsp;to&nbsp; Bioinformatics@cbs.rnrt.tn.&nbsp;Although&nbsp;the&nbsp;computing&nbsp;facilities&nbsp;are&nbsp;good,&nbsp;there&nbsp;is&nbsp;still&nbsp;a&nbsp;need&nbsp;for&nbsp; trained&nbsp;human&nbsp;resources&nbsp;to&nbsp;strengthen&nbsp;bioinformatics&nbsp;capacities&nbsp;at&nbsp;CBS,&nbsp;particularly&nbsp;in&nbsp;structural&nbsp; bioinformatics.</p><p>Web site and links: http://www.cbs.rnrt.tn</p>]]></description>
	<dc:creator>BioStar</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/news/view/39606/amity-university-bioinformatics-summer-program-kolkata</guid>
	<pubDate>Tue, 11 Jun 2019 21:27:10 -0500</pubDate>
	<link>https://bioinformaticsonline.com/news/view/39606/amity-university-bioinformatics-summer-program-kolkata</link>
	<title><![CDATA[Amity University Bioinformatics Summer Program - Kolkata]]></title>
	<description><![CDATA[<p>Registrations are now open for the 2019 Summer Bioinformatics Training program at Amity University, Kolkata. The program will focus on introductory topics for life science students. We will review important history, topics and challenges bioinformatics can help address in the context of basic research, discovery and industry.</p><p>Read more: https://edu.t-bio.info/amity-university-summer-bioinformatics-program-registrations-are-open/</p>]]></description>
	<dc:creator>eliabrodsky</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/bookmarks/view/43243/interactive-bioinformatics-resources</guid>
	<pubDate>Thu, 12 Aug 2021 00:09:00 -0500</pubDate>
	<link>https://bioinformaticsonline.com/bookmarks/view/43243/interactive-bioinformatics-resources</link>
	<title><![CDATA[Interactive Bioinformatics Resources !]]></title>
	<description><![CDATA[<p>Learn how to use bioinformatics tools right from your browser.<br>Everything runs in a sandbox, so you can experiment all you want.</p>
<p>More at sandbox.bio</p><p>Address of the bookmark: <a href="http://sandbox.bio" rel="nofollow">http://sandbox.bio</a></p>]]></description>
	<dc:creator>Jit</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/bookmarks/view/10925/a-brief-bioinformatics-tutorial</guid>
	<pubDate>Wed, 21 May 2014 12:50:09 -0500</pubDate>
	<link>https://bioinformaticsonline.com/bookmarks/view/10925/a-brief-bioinformatics-tutorial</link>
	<title><![CDATA[A Brief Bioinformatics Tutorial]]></title>
	<description><![CDATA[<p>This is about how to use a computer to find what is known about a gene of interest and also how to get new insights about it.</p>
<p>The tutorial is divided in three main parts:</p>
<ul>
<li>In the <strong>Sequence </strong>part, you will see how to look efficiently for a particular protein sequence, how to blast it against the database of your choice to find homologues, how to perform a multiple alignment of the homologues you've selected and how to edit this alignment.</li>
<li>The <strong>Structure </strong>part is about molecular visualization, homology modeling and structural domain prediction.</li>
<li>In the <strong>Function </strong>part, you will be introduced to you 3 useful servers to investigate the function of a protein. i.e. finding interactors, co-expressed genes, see a phylogenetic profile, easily access papers citing your gene etc ...</li>
</ul>
<p>During all the three parts, we will use the <em>S. cerevisiae </em>VPS36 protein as an example.</p><p>Address of the bookmark: <a href="http://www.mrc-lmb.cam.ac.uk/rlw/text/bioinfo_tuto/introduction.html" rel="nofollow">http://www.mrc-lmb.cam.ac.uk/rlw/text/bioinfo_tuto/introduction.html</a></p>]]></description>
	<dc:creator>Jit</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/pages/view/42813/bioinformatics-in-africa-part5-nigeria</guid>
	<pubDate>Sat, 06 Feb 2021 21:13:47 -0600</pubDate>
	<link>https://bioinformaticsonline.com/pages/view/42813/bioinformatics-in-africa-part5-nigeria</link>
	<title><![CDATA[Bioinformatics in Africa: Part5 - Nigeria]]></title>
	<description><![CDATA[<p>Covenant University (CU)&shy;Ota:<br />Covenant University (with her enriching and growing state&shy;of&shy;the&shy;art laboratories in the area of &nbsp;science and technology, arts, business and social sciences) is presently the Best University in &nbsp;Nigeria (Private University category), based on the recent over&shy;all rating just concluded by the &nbsp;Nigeria &nbsp; University &nbsp; Commission &nbsp; (NUC). &nbsp; Recently, &nbsp; Covenant &nbsp; University &nbsp; has &nbsp; initiated &nbsp; the &nbsp;establishment of a Centre for Applied Biotech, Bio&shy;Informatics and Microbiology (CBBM) to be &nbsp;situated at the University. The institute has been designed to be a Public&shy;Private Partnership for a productive synergy b/w Academia, Industry and Government. The whole concept is still evolving &nbsp;and more details will be release soon. As regards CBBM, a dedicated computing lab is in plan, but even our computing capacity is &nbsp;presently enormous. In the department of Computer and Information Sciences, we have more than &nbsp;250 Pentium 4 PCs set aside for teaching and research purposes. Furthermore, we have several &nbsp;moderate speed PCs at the Postgraduate research lab and our engineering departments and units. &nbsp;Our wet lab facilities is presently minimal (basic for teaching), the Centre requirement as it touches &nbsp;the wet&shy;laboratories is also set to upgrade this to basic tools expected at an international centre of learning.</p><p>University&nbsp;of&nbsp;Ibadan&nbsp;(UIB)&shy;Ibadan:<br />There&nbsp;has&nbsp;been&nbsp;significant&nbsp;increase&nbsp;in&nbsp;the&nbsp;number&nbsp;of&nbsp;bioinformatics&nbsp;activities&nbsp;in&nbsp;Nigeria&nbsp;(and&nbsp;West Africa)&nbsp;since&nbsp;2003&nbsp;when&nbsp;the&nbsp;program&nbsp;was&nbsp;initiated&nbsp;by&nbsp;the&nbsp;West&nbsp;African&nbsp;Biotechnology&nbsp;Workshops Series&nbsp;(WABWS,&nbsp;http://www.wabw.org)&nbsp;at&nbsp;the&nbsp;University&nbsp;of&nbsp;Ibadan,&nbsp;Nigeria&nbsp;(in&nbsp;collaboration&nbsp;with&nbsp; the&nbsp;South&nbsp;African&nbsp;National&nbsp;Bioinformatics&nbsp;Institute&nbsp;(SANBI,&nbsp;http:/www.sanbi.ac.za).&nbsp;Workshops&nbsp; that&nbsp;were&nbsp;open&nbsp;to&nbsp;scientists&nbsp;from&nbsp;all&nbsp;African&nbsp;countries&nbsp;have&nbsp;seen&nbsp;a&nbsp;very&nbsp;high&nbsp;number&nbsp;of&nbsp;applications&nbsp; from&nbsp;scientists&nbsp;based&nbsp;in&nbsp;West&nbsp;Africa.&nbsp;The&nbsp;encouraging&nbsp;desire&nbsp;to&nbsp;acquire&nbsp;cutting&shy;edge&nbsp;skills&nbsp;to&nbsp; computational&nbsp;process&nbsp;data&nbsp;and&nbsp;extract&nbsp;useful&nbsp;knowledge&nbsp;from&nbsp;genome&nbsp;projects&nbsp;led&nbsp;to&nbsp;the&nbsp;interest&nbsp;of&nbsp; the&nbsp;West&nbsp;African&nbsp;Biotechnology&nbsp;Workshops&nbsp;(WABW)&nbsp;to&nbsp;develop&nbsp;an&nbsp;agenda&nbsp;to&nbsp;address&nbsp;the&nbsp; bioinformatics&nbsp;skills&nbsp;gap&nbsp;among&nbsp;scientists&nbsp;in&nbsp;West&nbsp;Africa.&nbsp;An&nbsp;increased&nbsp;commitment&nbsp;from&nbsp;agencies&nbsp; like&nbsp;NEPAD&nbsp;would&nbsp;be&nbsp;required&nbsp;in&nbsp;the&nbsp;provision&nbsp;of&nbsp;infrastructure&nbsp;to&nbsp;establish&nbsp;and&nbsp;sustain&nbsp;regional&nbsp; and&nbsp;national&nbsp;networks.</p><p>University&nbsp;of&nbsp;Ilorin&nbsp;(UIL)&shy;Ilorin:<br />The&nbsp;University&nbsp;of&nbsp;Ilorin&nbsp;was&nbsp;established&nbsp;in&nbsp;1976&nbsp;by&nbsp;the&nbsp;Federal&nbsp;Government&nbsp;of&nbsp;Nigeria.&nbsp; Bioinformatics&nbsp;activities&nbsp;started&nbsp;at&nbsp;the&nbsp;University&nbsp;in&nbsp;February&nbsp;2003&nbsp;with&nbsp;the&nbsp;establishment&nbsp;of&nbsp;the&nbsp; West&nbsp;African&nbsp;Bioinformatics&nbsp;Research&nbsp;Initiative&nbsp;(WABRI).&nbsp;However,&nbsp;progress&nbsp;has&nbsp;been&nbsp;rather&nbsp;slow&nbsp; due&nbsp;to&nbsp;inadequate&nbsp;funding.&nbsp;We&nbsp;are&nbsp;mainly&nbsp;engaged&nbsp;in&nbsp;Bioinformatics&nbsp;training&nbsp;at&nbsp;the&nbsp;introductory&nbsp; level&nbsp;and&nbsp;proteomics&nbsp;studies&nbsp;on&nbsp;various&nbsp;species&nbsp;of&nbsp;malaria&nbsp;parasites.&nbsp;Recently,&nbsp;we&nbsp;became&nbsp;interested&nbsp; in&nbsp;comparative&nbsp;genome&nbsp;analysis&nbsp;of&nbsp;various&nbsp;species&nbsp;of &nbsp;Plasmodium&nbsp; and&nbsp;the&nbsp;comparison&nbsp;of&nbsp; chloroquine&nbsp;sensitive&nbsp;and&nbsp;chloroquine&nbsp;resistant&nbsp;strains&nbsp;of&nbsp;Plasmodium&nbsp;falciparum.&nbsp;Other&nbsp;activities&nbsp; and&nbsp;areas&nbsp;of&nbsp;interest&nbsp;can&nbsp;be&nbsp;seen&nbsp;on&nbsp;our&nbsp;website,&nbsp;http://www.wabri.org,&nbsp;although&nbsp;not&nbsp;all&nbsp;our&nbsp; proposed&nbsp;interests&nbsp;have&nbsp;been&nbsp;fully&nbsp;implemented&nbsp;due&nbsp;to&nbsp;our&nbsp;level&nbsp;of&nbsp;funding.</p><p>Training:<br />The&nbsp;University&nbsp;of&nbsp;Ilorin&nbsp;has&nbsp;introduced&nbsp;M.Sc.&nbsp;and&nbsp;Ph.D.&nbsp;programmes&nbsp;in&nbsp;Computer&nbsp;Science&nbsp;(with&nbsp; options&nbsp;in&nbsp;Bioinformatics).&nbsp;The&nbsp;programme&nbsp;is&nbsp;based&nbsp;in&nbsp;the&nbsp;Department&nbsp;of&nbsp;Computer&nbsp;Science&nbsp;and&nbsp; emphasis&nbsp;is&nbsp;on&nbsp;the&nbsp;development&nbsp;of&nbsp;algorithms&nbsp;to&nbsp;solve&nbsp;problems&nbsp;in&nbsp;bioinformatics. The&nbsp;Covenant&nbsp;University&nbsp;offers&nbsp;M.Sc.&nbsp;and&nbsp;Ph.D&nbsp;in&nbsp;Computer&nbsp;Science&nbsp;with&nbsp;option&nbsp;in&nbsp;Bioinformatics&nbsp; (Computational&nbsp;Biology).&nbsp;Furthermore,&nbsp;through&nbsp;affiliated&nbsp;departments,&nbsp;the&nbsp;CBBM&nbsp;is&nbsp;been&nbsp;design&nbsp;to&nbsp;award&nbsp;Diploma&nbsp;and&nbsp;Degree&nbsp;certificates&nbsp;in&nbsp;Biotechnology.</p><p>Web&nbsp;sites&nbsp;and&nbsp;links: http://www.covenantuniversity.com http://www.run.edu.ng http://www.uniben.edu http://www.wabri.org http://www.wabw.org http://www.unilorin.edu.ng http://www.wabri.org http://www.asopah.org</p>]]></description>
	<dc:creator>BioStar</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/videolist/watch/14218/pimp-your-brain-bioinformatics</guid>
	<pubDate>Wed, 20 Aug 2014 22:09:21 -0500</pubDate>
	<link>https://bioinformaticsonline.com/videolist/watch/14218/pimp-your-brain-bioinformatics</link>
	<title><![CDATA[Pimp your brain: Bioinformatics]]></title>
	<description><![CDATA[<iframe width="" height="" src="https://www.youtube-nocookie.com/embed/KqelGy6Q8nE" frameborder="0" allowfullscreen></iframe>Jan Lisec from the Max Planck Institute of Molecular Plant Physiology explains, in this "pimp your brain" episode, what bioinformatics is and why bioinformatics is so important and indispensable for biological research.

In the video serial "Pimp your brain" scientists from the Max Planck Institute of Molecular Plant Physiology describe their research. More videos from the 'Pimp your brain' serial are available on www.youtube.com/playlist?list=PL-l9VItC9Gn2Ur2Xj6PTOAkjLUlVPbIOO

More videos are available on www.mpimp-golm.mpg.de]]></description>
	
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	<guid isPermaLink="true">https://bioinformaticsonline.com/pages/view/42814/bioinformatics-in-africa-part6-sudan</guid>
	<pubDate>Sat, 06 Feb 2021 21:20:59 -0600</pubDate>
	<link>https://bioinformaticsonline.com/pages/view/42814/bioinformatics-in-africa-part6-sudan</link>
	<title><![CDATA[Bioinformatics in Africa: Part6 - Sudan]]></title>
	<description><![CDATA[<p>Commission&nbsp;for&nbsp;Biotechnology&nbsp;&amp;&nbsp;Genetic&nbsp;Engineering&nbsp;&shy;&nbsp;Khartoum: The&nbsp;Commission&nbsp;for&nbsp;Biotechnology&nbsp;and&nbsp;Genetic&nbsp;Engineering&nbsp;was&nbsp;established&nbsp;in&nbsp;9/2/1993&nbsp;as&nbsp; research&nbsp;unit.&nbsp;In&nbsp;addition&nbsp;to&nbsp;research&nbsp;activities&nbsp;it&nbsp;acts&nbsp;as&nbsp;focal&nbsp;point&nbsp;for&nbsp;the&nbsp;International&nbsp;Center&nbsp;for&nbsp; Biotechnology&nbsp;and&nbsp;Genetic&nbsp;Engineering. The&nbsp;commission&nbsp;conducts&nbsp;researches&nbsp;in&nbsp;order&nbsp;to&nbsp;play&nbsp;a&nbsp;part&nbsp;in&nbsp;solving&nbsp;economical,&nbsp;environmental,&nbsp; health&nbsp;and&nbsp;nutritional&nbsp;problems&nbsp;using&nbsp;modern&nbsp;research&nbsp;techniques&nbsp;with&nbsp;an&nbsp;emphasis&nbsp;on&nbsp;the&nbsp;applied&nbsp; researches&nbsp;in&nbsp;these&nbsp;areas. The&nbsp;laboratories&nbsp;were&nbsp;well&nbsp;furnished&nbsp;with&nbsp;the&nbsp;essential&nbsp;equipments&nbsp;and&nbsp;the&nbsp;catalyst&nbsp;infrastructure&nbsp;to&nbsp; facilitate&nbsp;emergence&nbsp;of&nbsp;a&nbsp;successful&nbsp;for&nbsp;research.&nbsp;The&nbsp;Commission&nbsp;equipped&nbsp;with&nbsp;a&nbsp;computer&nbsp;center&nbsp; and&nbsp;information&nbsp;to&nbsp;serve&nbsp;as&nbsp;informatics&nbsp;and&nbsp;Digital&nbsp;library.</p><p>Research&nbsp;Interest&nbsp;and&nbsp;Activities: 1. Plant&nbsp;Genetic&nbsp;Transformations<br />2. Molecular&nbsp;Population&nbsp;Genetics 3. Detection&nbsp;of&nbsp;human&nbsp;and&nbsp;Animals&nbsp;diseases 4. Breast&nbsp;Cancer&shy;specific&nbsp;protein&nbsp;marker 5. Phytochemical 6. Genomic&nbsp;map 7. Bioremediation 8. Tissue&nbsp;Culture.</p><p>Web&nbsp;site&nbsp;and&nbsp;links: www.geocity.cbge.com</p>]]></description>
	<dc:creator>BioStar</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/bookmarks/view/44204/bioinformatics-training-collections</guid>
	<pubDate>Sun, 05 Mar 2023 23:01:26 -0600</pubDate>
	<link>https://bioinformaticsonline.com/bookmarks/view/44204/bioinformatics-training-collections</link>
	<title><![CDATA[Bioinformatics Training Collections !]]></title>
	<description><![CDATA[<p>Useful list of bioinformatics training collections @&nbsp;https://github.com/sib-swiss/training-collection</p><p>Address of the bookmark: <a href="https://github.com/sib-swiss/training-collection" rel="nofollow">https://github.com/sib-swiss/training-collection</a></p>]]></description>
	<dc:creator>BioStar</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/pages/view/35534/awk-for-bioinformatician-and-computational-biologist</guid>
	<pubDate>Tue, 06 Feb 2018 14:54:35 -0600</pubDate>
	<link>https://bioinformaticsonline.com/pages/view/35534/awk-for-bioinformatician-and-computational-biologist</link>
	<title><![CDATA[Awk for Bioinformatician and computational biologist]]></title>
	<description><![CDATA[<p>Awk is a programming language which allows easy manipulation of structured data and is mostly used for pattern scanning and processing. It searches one or more files to see if they contain lines that match with the specified patterns and then perform associated actions. The basic syntax is:</p><blockquote><p><br />awk '/pattern1/ {Actions}<br /> /pattern2/ {Actions}' file</p></blockquote><p><br />The working of Awk is as follows<br />Awk reads the input files one line at a time.<br />For each line, it matches with given pattern in the given order, if matches performs the corresponding action.<br />If no pattern matches, no action will be performed.<br />In the above syntax, either search pattern or action are optional, But not both.<br />If the search pattern is not given, then Awk performs the given actions for each line of the input.<br />If the action is not given, print all that lines that matches with the given patterns which is the default action.<br />Empty braces with out any action does nothing. It wont perform default printing operation.<br />Each statement in Actions should be delimited by semicolon.<br />Say you have data.tsv with the following contents:</p><p><br />$ cat data/test.tsv<br />contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2 ACTTTATATATT<br />contig3 ACTTATATATATATA<br />contig4 ACTTATATATATATA<br />contig5 ACTTTATATATT <br />By default Awk prints every line from the file.</p><p><br />$ awk '{print;}' data/test.tsv<br />contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2 ACTTTATATATT<br />contig3 ACTTATATATATATA<br />contig4 ACTTATATATATATA<br />contig5 ACTTTATATATT <br />We print the line which matches the pattern contig3</p><p><br />$ awk '/contig3/' data/test.tsv<br />contig3 ACTTATATATATATA<br />Awk has number of builtin variables. For each record i.e line, it splits the record delimited by whitespace character by default and stores it in the $n variables. If the line has 5 words, it will be stored in $1, $2, $3, $4 and $5. $0 represents the whole line. NF is a builtin variable which represents the total number of fields in a record.</p><p><br />$ awk '{print $1","$2;}' data/test.tsv<br />contig1,ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2,ACTTTATATATT<br />contig3,ACTTATATATATATA<br />contig4,ACTTATATATATATA<br />contig5,ACTTTATATATT</p><p>$ awk '{print $1","$NF;}' data/test.tsv<br />contig1,ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2,ACTTTATATATT<br />contig3,ACTTATATATATATA<br />contig4,ACTTATATATATATA<br />contig5,ACTTTATATATT</p><p><br />Awk has two important patterns which are specified by the keyword called BEGIN and END. The syntax is as follows:</p><blockquote><p>BEGIN { Actions before reading the file}<br />{Actions for everyline in the file} <br />END { Actions after reading the file }</p></blockquote><p><br />For example,<br />$ awk 'BEGIN{print "Header,Sequence"}{print $1","$2;}END{print "-------"}' data/test.tsv<br />Header,Sequence<br />contig1,ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2,ACTTTATATATT<br />contig3,ACTTATATATATATA<br />contig4,ACTTATATATATATA<br />contig5,ACTTTATATATT<br />------- <br />We can also use the concept of a conditional operator in print statement of the form print CONDITION ? PRINT_IF_TRUE_TEXT : PRINT_IF_FALSE_TEXT. For example, in the code below, we identify sequences with lengths &gt; 14:</p><p>$ awk '{print (length($2)&gt;14) ? $0"&gt;14" : $0"&lt;=14";}' data/test.tsv<br />contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG&gt;14<br />contig2 ACTTTATATATT&lt;=14<br />contig3 ACTTATATATATATA&gt;14<br />contig4 ACTTATATATATATA&gt;14<br />contig5 ACTTTATATATT&lt;=14<br />We can also use 1 after the last block {} to print everything (1 is a shorthand notation for {print $0} which becomes {print} as without any argument print will print $0 by default), and within this block, we can change $0, for example to assign the first field to $0 for third line (NR==3), we can use:</p><p>$ awk 'NR==3{$0=$1}1' data/test.tsv<br />contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2 ACTTTATATATT<br />contig3<br />contig4 ACTTATATATATATA<br />contig5 ACTTTATATATT<br />You can have as many blocks as you want and they will be executed on each line in the order they appear, for example, if we want to print $1 three times (here we are using printf instead of print as the former doesn't put end-of-line character),</p><p>$ awk '{printf $1"\t"}{printf $1"\t"}{print $1}' data/test.tsv<br />contig1 contig1 contig1<br />contig2 contig2 contig2<br />contig3 contig3 contig3<br />contig4 contig4 contig4<br />contig5 contig5 contig5 <br />Although, we can also skip executing later blocks for a given line by using next keyword:</p><p>$ awk '{printf $1"\t"}NR==3{print "";next}{print $1}' data/test.tsv<br />contig1 contig1<br />contig2 contig2<br />contig3 <br />contig4 contig4<br />contig5 contig5</p><p>$ awk 'NR==3{print "";next}{printf $1"\t"}{print $1}' data/test.tsv<br />contig1 contig1<br />contig2 contig2</p><p>contig4 contig4<br />contig5 contig5<br />You can also use getline to load the contents of another file in addition to the one you are reading, for example, in the statement given below, the while loop will load each line from test.tsv into k until no more lines are to be read:</p><p>$ awk 'BEGIN{while((getline k &lt;"data/test.tsv")&gt;0) print "BEGIN:"k}{print}' data/test.tsv<br />BEGIN:contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />BEGIN:contig2 ACTTTATATATT<br />BEGIN:contig3 ACTTATATATATATA<br />BEGIN:contig4 ACTTATATATATATA<br />BEGIN:contig5 ACTTTATATATT<br />contig1 ACTGTCTGTCACTGTGTTGTGATGTTGTGTGTG<br />contig2 ACTTTATATATT<br />contig3 ACTTATATATATATA<br />contig4 ACTTATATATATATA<br />contig5 ACTTTATATATT <br />You can also store data in the memory with the syntax VARIABLE_NAME[KEY]=VALUE which you can later use through for (INDEX in VARIABLE_NAME) command:</p><p>$ awk '{i[$1]=1}END{for (j in i) print j"&lt;="i[j]}' data/test.tsv<br />contig1&lt;=1<br />contig2&lt;=1<br />contig3&lt;=1<br />contig4&lt;=1<br />contig5&lt;=1</p>]]></description>
	<dc:creator>Poonam Mahapatra</dc:creator>
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	<guid isPermaLink="true">https://bioinformaticsonline.com/bookmarks/view/43323/biostarhandbook</guid>
	<pubDate>Fri, 27 Aug 2021 01:31:01 -0500</pubDate>
	<link>https://bioinformaticsonline.com/bookmarks/view/43323/biostarhandbook</link>
	<title><![CDATA[biostarhandbook]]></title>
	<description><![CDATA[<p>Nice book collection for bioinformatician ... highly recommended.</p><p>Address of the bookmark: <a href="https://www.biostarhandbook.com/" rel="nofollow">https://www.biostarhandbook.com/</a></p>]]></description>
	<dc:creator>Neel</dc:creator>
</item>

</channel>
</rss>