multiple 'if' statements out of array


 
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# 1  
Old 08-04-2008
multiple 'if' statements out of array

I want to do multiple comparisons on a series of numbers from an array:

I send the numbers in file1 through want to print out some info from file2 based on some conditions.

The syntax just isn't correct???

awk '
NR==FNR{
a[NR]=$0
next
}
{
for(i=1;i<NR;i++)
if (a[i] < $7 && a[i] > $8) print $1,
if (a[i] < $8 && a[i] > $9) print $2,
if (a[i] < $5 && a[i] > $4) print $3,

}' file1 file2 > outfile &


any help would be great Smilie
# 2  
Old 08-04-2008
Not sure what you're trying to do here (sure seems to me that there are easier methods) but, for starters, you may want to reference your filenames in your awk procedure blocks or it's going to get messy.

Code:
FILENAME == file1 {
    arr[FNR]=$0
    n++
}
FILENAME == file2 {
  for (i=1;i<=n;i++) {
      if ($7 > arr[i] && $8 < arr[i] print $1;
      if ($8 > arr[i] && $9 < arr[i] print $2;
      if ($5 > arr[i] && $4 < arr[i] print $3;
  }
}' file1 file2 > outfile &

note: I didn't test this at all so, no doubt there are errors. Mostly I'm trying to illustrate the use of FILENAME to help with flow control.

t
# 3  
Old 08-04-2008
Quote:
Originally Posted by dcfargo
I want to do multiple comparisons on a series of numbers from an array:

I send the numbers in file1 through want to print out some info from file2 based on some conditions.

The syntax just isn't correct???

Code:
awk '
   NR==FNR{
          a[NR]=$0
          next
      }
      {
         for(i=1;i<NR;i++) {
            if (a[i] < $7 && a[i] > $8) print $1,
            if (a[i] < $8 && a[i] > $9) print $2,
            if (a[i] < $5 && a[i] > $4) print $3,
         }
}' file1 file2 > outfile &

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