nixCraft

Description   Current Val      Max Val   Err Val
firstparam        5403           8000         0
secondparam        350          10000         0
third param     458950         600000         5
param fourth      8190          10000         0

#!/bin/bash
DATA="data.txt"
# store line number
LNO=0
# numbers
F4=0
F3=0
F2=0
while read line
do
   F1=$(echo $line|awk '{ print $1 }' )
   F2=$(echo $line|awk '{ print $2 }' )
   F3=$(echo $line|awk '{ print $3 }' )
   F4=$(echo $line|awk '{ print $4 }' )
   LNO=$( expr $LNO + 1)
   # echo $F1 $F2 $F3 $F4
   # Description ==> $F1
   # Current Val  ==> $F2
   # Max Val  ==> $F3
   # Err Val ==> $F4
   # you can do the math on $F4 $F3 line by line now
   [ $F4 -gt 0 ] && echo "err val column $F4 value above 0 ($DATA line # $LNO)"
done < $DATA