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Shell Programming and Scripting

Analyzing last 2 fields of 1 row and 3rd field of next row

 
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Old 04-26-2019
For exactly your above laid out problem, try
Code:
awk 'NR > 1 {print LEADIN, (sum+$3)/3} {LEADIN = $1 OFS $2; sum = $13 + $14} ' file
01001 271895 59.5933
01001 271896 60.9133
01001 271897 62.4867

The output format can be modified by setting the OFMT variable.
For a two field summation, a for loop is not necessary, and you don't need a count if you're always adding three elements. If, on the other hand, you want a more generic approach, combine your attempt with this one.
These 2 Users Gave Thanks to RudiC For This Post:
ncwxpanther rbatte1
 
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