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  #1 (permalink)  
Old 02-24-2009
uwork72 uwork72 is offline
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awk check for equal - help
Input file:

Code:
x A 10
y A 10
z A 10
x B 10
y B 12
z B 10
x C 0
y C 0

Required output:

Code:
x B 10
y B 12
z B 10

i.e. printing only that section (based on 2nd field) for which third field($3) is not equal for all the lines for that 2nd field. Please help
  #2 (permalink)  
Old 02-24-2009
vgersh99's Avatar
vgersh99 vgersh99 is offline Forum Staff  
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Location: Boston, MA
Posts: 5,131
Quote:
Originally Posted by uwork72 View Post
Input file:

Code:
x A 10
y A 10
z A 10
x B 10
y B 12
z B 10
x C 0
y C 0

Required output:

Code:
x B 10
y B 12
z B 10

i.e. printing only that section (based on 2nd field) for which third field($3) is not equal for all the lines for that 2nd field. Please help
Hmm..... this is a bit confusing...
why do you have records in red then?

Code:
x B 10
y B 12
z B 10

Could you rephrase the description, please.
  #3 (permalink)  
Old 02-24-2009
zaxxon's Avatar
zaxxon zaxxon is offline Forum Staff  
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Location: Germany
Posts: 2,311
It's easy to produce the desired ouput but I didn't understand your explanaton.

Quote:
for which third field($3) is not equal for all the lines for that 2nd field
So you want those having $2 == B and also the whole line being unique?
If so...


Code:
grep " B " infile| uniq
  #4 (permalink)  
Old 02-24-2009
uwork72 uwork72 is offline
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Posts: 32
Thanks Zaxxon and vgersh99 for the reply.

I want to only print the section for which 3rd field is different (one section is basically based on second field, here A,B and C ).

Code:
x A 10
y A 10
z A 10
x B 10
y B 12
z B 10
x C 0
y C 0
  #5 (permalink)  
Old 02-24-2009
vgersh99's Avatar
vgersh99 vgersh99 is offline Forum Staff  
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Location: Boston, MA
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Quote:
Originally Posted by uwork72 View Post
Thanks Zaxxon and vgersh99 for the reply.

I want to only print the section for which 3rd field is different (one section is basically based on second field, here A,B and C ).

Code:
x A 10
y A 10
z A 10
x B 10
y B 12
z B 10
x C 0
y C 0
ok, so what the output of the above?
  #6 (permalink)  
Old 02-24-2009
uwork72 uwork72 is offline
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Posts: 32
Quote:
Originally Posted by vgersh99 View Post
ok, so what the output of the above?

Code:
x B 10
y B 12
z B 10

for A, all the third fields are same (10), same for C(0), but for B the 3rd fields are not same, so I wanted to print B section.
  #7 (permalink)  
Old 02-26-2009
summer_cherry summer_cherry is offline Forum Advisor  
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Location: Beijing China
Posts: 1,092
hi , seems perl is a little bit eaiser to handle


Code:
#!/usr/bin/perl
use strict;
my (%hash,%h);
open FH,"<a";
while(<FH>){
  my @tmp=split(" ",$_);
  $hash{$tmp[1]}.=$_;
  $h{$tmp[1]}->{$tmp[2]}=1;
}
close FH;
for my $key (sort keys %hash){
  my @tmp=keys %{$h{$key}};
  print $hash{$key} if $#tmp>=1;
}
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