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Shell Programming and Scripting

Implementing operators on multiple fields

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Top Forums Shell Programming and Scripting Implementing operators on multiple fields
# 8  
Old 05-29-2013
First create a file named: seq with all the numbers that you want to search:
Code:
$ cat seq
9100
9101
9102
9103
9104
9105
9106
9150
9151
9152
9153
9200
9201
9203
9300
9301
9302
9303
9304
9305
9400
9401
9510
9511

Now write an awk program to join seq and other input files:
Code:
awk -F, '
        NR == FNR {
                A[$1]
                next
        }
        $14 in A && $42 != 0 {
                ++c
        }
        END {
                print c > "pax1"
        }
' seq *_201304*.csv

# 9  
Old 05-29-2013
For reasons of performance, I would reverse the order of the tests, so you don't need to evaluate the entire array to finally find $42 being 0. And, you could use the implicit test for 0, leaving out "!=0":
Code:
         $42 && $14 in A {

This User Gave Thanks to RudiC For This Post:
Yoda
# 10  
Old 05-31-2013
Thank you for all your help.
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