Simple script to check missing lines

[cah]

This script is to find the missing lines in a file with consecutive numbers.
For example:

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The following script will write the following to the missing_line file:

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#!/bin/ksh

typeset -i i j count row
>missing_line

j=0
count=0

/bin/cat Test.txt | while read i
do
  (( count = ($count + 1) ))
  (( row = ($count + $j) ))
  while [ $row -lt $i ]
  do
    echo $row >> missing_line
    (( row = ($row + 1) ))
    (( j = ($j + 1) ))
  done
done