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Shell Programming and Scripting

awk/sed to get unique row

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Top Forums Shell Programming and Scripting awk/sed to get unique row
# 8  
Old 06-30-2011
Ah, sorry, must have read over that requirement. No, the timestamp is ignored in my solution.
# 9  
Old 06-30-2011
yet another [g]awker...
Code:
awk -F\| '{gsub("-|:| ","",s=$NF);if(!(x[$1$2] && l>s)){x[$1$2]=$0;l=s}}END{for(i in x) print x[i]}' file

# 10  
Old 06-30-2011
Quote:
Originally Posted by radoulov
And this should handle the timestamp too:

Code:
awk -F\| 'END {
  for (R in rec)
    print rec[R]
  }
$NF > max[$1, $2] { 
    max[$1, $2] = $NF
    rec[$1, $2] = $0
    }' infile

Ok looks like i need the higher timestamp column too, i mean its must

can you tell what you doing here

Thanks
# 11  
Old 06-30-2011
If the value of the last column is greater than the max for the key, save it as max and save the current record.
After the input is read, print the records.
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