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Full Discussion: Sequence extraction
Top Forums Shell Programming and Scripting Sequence extraction Post 302951305 by harpreetmanku04 on Wednesday 5th of August 2015 02:28:34 AM
Old 08-05-2015
Sequence extraction

i want to extract specific region of interest from big file. i have only start position, end position and seq id, see my query is:

I have file1 is this

Code:
>GL3482.1
GAACTTGAGATCCGGGGA
GCAGTGGATCTCCACCAG
CGGCCAGAACTGGTGCAC
CTCCAGGCCAGCCTCGTC
CTGCGTGTC
>GL3550.1
GGCATTTTTGTGTAATTTTTGGCTGGATGAGGT
GACATTTTCATTACTACCATTTTGGAGTACA
>GL3472.1
TTTTCCTGTTCACTGCTGCTTTTCTATAGACAGCA
GCAGCAAGCAGTAAGAGAAAGTA


file2 is this :

Code:
seq id     start    end
GL3482.1   323100   323743
GL3550.1   41911    40888
GL3472.1   274408   272617

and i want result like this:

Code:
>GL3482.1 
TTGAGA
>GL3550.1 
GGCATTTTTGTG
>GL3472.1
TTCCTGTT

when i run this command :

Code:
$ awk 'NR==FNR{if($0~/^>/){i=substr($0,2);getline};a[i]=a[i] $0;next}{print ">" $1 ORS substr(a[$1], $2, $3-$2+1)}' file1 FS=\\t file2

i got no output or output file. why so?
Moderator's Comments:
Mod Comment Please use CODE tags as required by the forum rules you agreed to when you joined this forum.


---------- Post updated at 01:28 AM ---------- Previous update was at 01:21 AM ----------

i am using Ubuntu OS

Last edited by Scrutinizer; 08-05-2015 at 04:07 AM.. Reason: Add CODE tags, remove extraneous closing COLOR tag. Removed spurious space and a newline from first sample file
 

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