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Is it possible to use egrep on a specific column in a file?

ie. my current code:

egrep 'snp|ins' file1 > file2

I'd like to only include the rows if they have snp or ins as terms in a...

haha yup, I just realized that.

It worked :)

Thank you so so so so so so very much.

Still results in an empty file :(

egrep 'acceptor|donor' file1 > file2

I have tried this and I get an empty file as the result :(

I'm having trouble pulling specific ROWS out of a very large file. I've been using an awk command in unix that looks like this:

awk '{if ($16=="ACCEPTOR" || $16=="DONOR") print $0}' file1 >...

Sorry vgersh99 - it does work - thank you so very much.

The reason I was confused is because all the rows from column two are still in this file, but I can just awk for the rows I need.

Much...

awk works, is there any difference between nawk and awk?

the output is off, it is showing this:
29 chr1 59497 59498 snp T C dbsnp.100:rs2854666;
chr1 61442 A G 3
...

Hi vgersh99, I tried yours but it said:

-bash: nawk: command not found

Thanks 2pugs...I keep getting errors though :(

wow, this is incredibly sophisticated compared to the basic unix that I know.

the only thing I'm confused about is where to put the file "paths"... each time it says file2 do i write the actual...

A match can exist in any row... the first file should ALL match in some way to an entry in the second file, but the second file has thousands of rows that will not match to the first file.

I'm...

Hi there,

I'm trying to merge two files and make a third file.

However, two of the columns need to match exactly in both files AND I want everything from both files in the output if the two...