I need to extract text between two character positions, e.g: all text between character 4921 and 6534.
The text blocks are FASTA-format sequence of whole chromosomes, so basically a million A, T, G, C, combinations. E.g:
I need to extract a region of genes, I know the character positions that are the boundaries.
I need the equivalent of what this does for lines:
But for character positions.
Thanks!
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I export a file from one of our source systems that gives me more information than I need. The way the file outputs, I need to extract certain strings at different positions on the file and echo them to another file.
I can do this in batch easily,... (2 Replies)
Hi
My file has a series of rows up to 160 characters in length.
There are 7 columns for each row.
In each row, column 1 starts at position 4
column 2 starts at position 12
column 3 starts at position 43
column 4 starts at position 82
column 5 starts at... (7 Replies)
Hello. I'm trying to insert text in various positions and I could only do that using pipes for each position.
Example:
cat file | sed -e 's#\(.\{5\}\)\(.*\)#\1:\2#g' | sed -e 's#\(.\{26\}\)\(.*\)#\1:\2#g'
Insert ":" at position 5 and 26.
it can be done in the same sentence, without using... (4 Replies)
Hi,
I would like to know how can I get all the positions of a letter, let say letter C in a text file.
sample input file:
hcck
pgog
hlhhc
desired output file:
2
3
13
Many thanks! (2 Replies)
I am attempting to replace positions 44-46 with YYY if positions 48-50 = XXX.
awk -F "" '{if (substr($0,48,3)=="XXX") $44="YYY"}1' OFS="" $filename > $tempfile
But this is not working, 44-46 is still spaces in my tempfile instead of YYY. Any suggestions would be greatly appreciated. (9 Replies)
I have files with hundreds of sequences with missing characters represented by a dash ("-"), something like this
I need to go sequence by sequence and if a dash is found, it should be replaced with the most common character in that particular position. Thus, in my example the dash in the second... (6 Replies)
hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
without using... (1 Reply)
Hi
i am having text file like this
40000201040005200213072009000000700000050744820906904421
40069300240005200713072009000000067400098543630000920442
i want to replace 9-16 positions of my txt file...by 1234567...in a single line command
i.e
0400052....should be replaced by... (2 Replies)
Hi,
I would like extract from a file a character or pattern after ( n + 1) a specific pattern (n) . ( i supposed with awk)
how could i do ?
Thanks in advance. (1 Reply)