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validating a file based on conditions

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Top Forums Shell Programming and Scripting validating a file based on conditions
# 8  
Old 01-02-2009
Quote:
Originally Posted by trichyselva
hi,
thanks for the response
actually in my message if there are 3 records like

aaa 123 233
aaa 234 222
aaa 242 222

then only ONE aaa

need to be printed
but in the output it is showing all the 3 values
[...]
Is this the correct output or I'm missing something?


Code:
% cat file
aaa 123 233
aaa 234 222
aaa 242 222
% awk 'END { 
  for (_ in u) if (u[_])
  print _
}
{
  u[$1] = k[$1,$2]++ ? x : 1
  }' file
aaa

If your fields are separated by |, use awk -F\| ...

If you post sample from your real data, it would be easier.
Last edited by radoulov; 01-02-2009 at 04:38 AM..
# 9  
Old 01-02-2009
(Post withdrawn)
Last edited by methyl; 01-02-2009 at 09:20 AM..
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