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Sort field and uniq


 
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# 1  
Old 12-05-2012
Sort field and uniq

I have a flatfile A.txt

Code:
2012/12/04 14:06:07 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 17:07:22 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 17:13:27 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 14:07:39 |rain|Boards 1|tampa|merced|merced11

How do i sort and get latest date time with uniq duplicate field 6?
Out put will be
Code:
2012/12/04 17:13:27 |trees|Boards 2, 3|denver|mekong|mekong12
2012/12/04 14:07:39 |rain|Boards 1|tampa|merced|merced11

I used this code but did not work
Code:
sort -t\| +5 -6 0 -1 A.txt | uniq

Thanks for showing me.
# 2  
Old 12-05-2012
awk -f saber.awk myFile
where saber.awk is:
Code:
BEGIN {
  FS=OFS="|"
}
{
  f1=$1; gsub("[^0-9]","",f1)
  if (f1 > val[$NF]) {
    val[$NF]=f1
    arr[$NF]=$0
 }
}
END {
  for (i in arr)
    print arr[i]
}


Last edited by vgersh99; 12-05-2012 at 04:08 PM..
# 3  
Old 12-05-2012
try also (a little cheesy):
Code:
sort -r -t\| -k6 A.txt | awk -F"|" '!a[$6]++' | sort -t\| -k6

or
Code:
awk -F"|" '$1>a[$6]{a[$6]=$0}END {for (i in a) print a[i]}' A.txt | sort -t\| -k6


Last edited by rdrtx1; 12-05-2012 at 04:20 PM..
# 4  
Old 12-05-2012
Thanks all. It also work with
Code:
sort -t\| -k6,6 -u A.txt


Last edited by Franklin52; 12-06-2012 at 04:58 AM.. Reason: Please use code tags for data and code samples

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