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I am trying to read in a stacking velocity file with the following change in format midway through the file:

V2EU90-226 1293 5000 4100
V2EU90227B 3103 170 1480

I want to output:
226 1293...

Thanks Danmero! I didnt understand how c worked until now.

Thanks Thanhdat!,
The uniq command worked a treat however the AWK prints a 5 line gap between replicate sets. Ive played about with it but cannot reduce this. I am using gawk, would this make a...

Hi,
I am trying to add a blank line between sets of replicate values. I have been trying to use

uniq -D [prepend] -f4 input.txt > output.txt


The input is like

V2-1.0 -1.0...

Sorry but I have no idea how to sort without gawk (I also have almost no knowledge of how to use gawk). From what I have read, I thought it would be simple to use. Is it not possible to modify
sort...

Thanks Vgersh99!

I usually use a command line of
gawk.exe -f filter.awk vel.txt > filtered_file.txt

How would I use your suggestion in this way? I have played about with the code but only...

Hi,
I usually use Access to sort data however for some reason its not working. Our systems guys and myself cannot figure it out so ive tried to use AWK to do the sorting. The file is made up of...

Thanks very much Panyam!! Ive further modified your code to add dummy values for $3 and $4. I can do something myself!!
Cheers
Ryan

Thanks Panyam. I think I get it but Ive tried to modify the script to add a further condition but seem to be getting nowhere. I am trying to output as previously however within each series of $1 and...

Cheers Panyam,
I have used the linked txt previously. Although it seems pretty comprehensive I have found it quite hard to learn from. Perhaps it just me, with no previous knowledge of scripts and...

Thanks Panyam,
Ive tried to understand both suggestions but could anybody briefly explain what the code is saying?
Thanks

Franklin52,
Thanks very much. Ive spend so long trying to sort this.
Ryan

Apologies Franklin52.

Your suggestion does not account for the change in cdp number. I think the output is the same as if I used
{NF==4
if (NR==1)
printf $1"/"$2":"$3"-"$4","
if (NR>1)...

Hi,
Ive used unix.com to help learn the basics of AWK to format txt files however ive run out of talent and could do with some help. Im not sure if this is possible using awk but I have an input as...