Sponsored Content
Full Discussion: Sequence extraction
Top Forums Shell Programming and Scripting Sequence extraction Post 302951309 by Scrutinizer on Wednesday 5th of August 2015 03:39:48 AM
Old 08-05-2015
Maybe because FS is set to '\t' and there appear to be no TABs in your second sample file, so the fields will not match. And you are setting the index to the entire record, save the first character. which is probably not what you want (you probably meant to use $1 here, but that would not be a sure way to do it either, because in the FASTA format the identifier is allowed to contain spaces). And the FASTA file is word wrapped, so you need to take out the newlines and not use getline to get only the second line ....

The best way to do that is is to use ">" as a record separator and use "\n" as the field separator. By setting OFS as the empty string, and assigning a value to one of the fields, all newlines will be replaced by empty strings, so this will effectively remove the word wrap. And the sequence will become one continuous string, which will make it suitable for substring selection.

Using your file order, we would get something like this.
Code:
awk 'NR==FNR{i=$1; $1=x; A[i]=$0; next} $1 in A{print ">" $1 ORS substr(A[$1], $2, $3-$2+1)}' RS=\> FS='\n' OFS= file1 FS=" " RS="\n" file2


If we read the files the other way around, then it becomes more memory efficient:
Code:
awk 'NR==FNR{S[$1]=$2; E[$1]=$3; next} $1 in S{i=$1; $1=x; print RS i FS substr($0,S[i],E[i]-S[i]+1)}' file2 RS=\> FS='\n' OFS= file1


Last edited by Scrutinizer; 08-05-2015 at 04:52 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with tar extraction!

I have this tar file which has files of (.ksh, .ini &.sql) and their hard and soft links. Later when the original files and their directories are deleted (or rather lost as in a system crash), I have this tar file as the only source to restore all of them. In such a case when I do, tar... (4 Replies)
Discussion started by: manthasirisha
4 Replies

2. Shell Programming and Scripting

AWK extraction

Hi all, I have a data file from which i would like to extract only certain fields, which are not adjacent to each other. Following is the format of data file (data.txt) that i have, which has about 6 fields delimited by "|" HARRIS|23|IT|PROGRAMMER|CHICAGO|EMP JOHN|35|IT|JAVA|NY|CON... (2 Replies)
Discussion started by: harris2107
2 Replies

3. Shell Programming and Scripting

extraction of last but one char

I need to extract the character before the last "|" in the following lines, which are 'N' and 'U'. The last "|" shouldn't be extracted. Also the no.s of "|" may vary in a line, but I need only the character before the last one. ... (5 Replies)
Discussion started by: hidnana
5 Replies

4. Shell Programming and Scripting

Regex extraction

Hello, I need your help to extract text from following: ./sherg_fyd_rur:blkabl="R23.21_BL2008_0122_1" ./serge_a75:rlwual="/main/r23.21=26-Mar-2008.05:00:20UTC@R11.31_BL2008_0325" ./serge_a75:blkabl="R23.21_BL2008_0325" ./sherg_proto_npiv:bkguals="R23.21_BL2008_0302 I80_11.31_LR" I... (11 Replies)
Discussion started by: abdurrouf
11 Replies

5. Programming

extraction from a path

Hi, Can you help me on this two problems? how can i get : from input: /ect/exp/hom/bin ==> output: exp and from input: aex1234 =====>output: ex thanks, (1 Reply)
Discussion started by: yeclota
1 Replies

6. Shell Programming and Scripting

extraction

I have following input @xxxxxx@ I want to extract what's between @....@ that is : xxxx using SED command (6 Replies)
Discussion started by: xerox
6 Replies

7. UNIX for Dummies Questions & Answers

fast sequence extraction

Hi everyone, I have a large text file containing DNA sequences in fasta format as follows: >someseq GAACTTGAGATCCGGGGAGCAGTGGATCTC CACCAGCGGCCAGAACTGGTGCACCTCCAG GCCAGCCTCGTCCTGCGTGTC >another seq GGCATTTTTGTGTAATTTTTGGCTGGATGAGGT GACATTTTCATTACTACCATTTTGGAGTACA >seq3450... (4 Replies)
Discussion started by: Fahmida
4 Replies

8. Shell Programming and Scripting

find common entries and match the number with long sequence and cut that sequence in output

Hi all, I have a file like this ID 3BP5L_HUMAN Reviewed; 393 AA. AC Q7L8J4; Q96FI5; Q9BQH8; Q9C0E3; DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot. DT 05-JUL-2004, sequence version 1. DT 05-SEP-2012, entry version 71. FT COILED 59 140 ... (1 Reply)
Discussion started by: manigrover
1 Replies

9. Shell Programming and Scripting

String Extraction

I am trying to extract a time from the below string in perl but not able to get the time properly I just want to extract the time from the above line I am using the below syntax x=~ /(.*) (\d+)\:(\d+)\:(\d+),(.*)\.com/ $time = $2 . ':' . $3 . ':' . $4; print $time Can... (1 Reply)
Discussion started by: karan8810
1 Replies

10. Shell Programming and Scripting

Extraction of upstream and downstream regions from long sequence file

Hello, here I am posting my query again with modified data input files. see my query is : i have two input files file1 and file2. file1 is smalldata.fasta >gi|546671471|gb|AWWX01449637.1| Bubalus bubalis breed Mediterranean WGS:AWWX01:contig449636, whole genome shotgun sequence... (20 Replies)
Discussion started by: harpreetmanku04
20 Replies
DwtScrollBarGetSlider(3Dwt)											       DwtScrollBarGetSlider(3Dwt)

Name
       DwtScrollBarGetSlider - Retrieves the current size and position parameters of the slider in the scroll bar widget.

Syntax
       void DwtScrollBarGetSlider(widget, value_return, shown_return,
				  inc_return, pageinc_return)
	    Widget widget;
	    int *value_return;
	    int *shown_return;
	    int *inc_return;
	    int *pageinc_return;

Arguments
       widget	 Specifies the scroll bar widget ID.

       value_return
		 Returns  the scroll bar's top thumb (slider) position between the DwtNminValue and DwtNmaxValue attributes to the scroll bar wid-
		 get.

       shown_return
		 Returns the size of the slider as a value between zero and the absolute value of DwtNmaxValue minus DwtNminValue.   The  size	of
		 the slider varies, depending on how much of the slider scroll area it represents.

       inc_return
		 Returns the amount of button increment and decrement.

       pageinc_return
		 Returns the amount of page increment and decrement.

Description
       The DwtScrollBarGetSlider function returns the currently displayed size/position values of the slider in the scroll bar widget.	The scroll
       region is overlaid with a slider bar that is adjusted in size and position using the main scroll bar or	set  slider  function  attributes.
       The stepping arrows and the slider are the scroll activator objects providing the user interface syntax ``feel.''

See Also
       DwtScrollBarSetSlider(3Dwt)
       Guide to the XUI Toolkit: C Language Binding
       Guide to the XUI Toolkit Intrinsics: C Language Binding

														       DwtScrollBarGetSlider(3Dwt)
All times are GMT -4. The time now is 04:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy