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that looks right

I get this (Linux):

CADAFUAG00004144,93,1548862,T,C CADAFUAG00004144,93,1548862,T,C CADAFUAG00004144,93,1548862,T,C
CADAFUAG00000594,53,240575,G,A ...

many thanks Subbeh

this doesnt work for me - I get slightly garbled output in 3 columns and it only shows the rows which have matches in all 3 sub-lists. Am I right thinking that this works for 3...

sorry

if the input is this:

AF10_identified_SNPs.vcf:
CADAFUAG00000594,53,240575,G,A
CADAFUAG00000594,53,242762,A,G
CADAFUAG00000594,53,243450,T,G
CADAFUAG00003722,94,896971,T,C...

Hi
I have been racking my (limited) brains to get this to work without success

I have a file output which is a list of lists - ie a single column of data that is separated by space into sub lists...

many thanks

the sed command worked well

---------- Post updated at 06:07 AM ---------- Previous update was at 06:05 AM ----------

as did the awk - many thanks

Hi

I have a very large data file with several hundred columns and millions of lines.

The important data is in the last set of columns with variable numbers of tab delimited fields in front of...

works perfectly - many thanks!

Hi

Im a very inexperienced bioinformatician

I have a large DNA file with about 10000 lines of sequence and need to count the occurrence of TA for each line

for example in the file
...