Shell Programming and Scripting

Code:

#!/bin/ksh
 
log[0]=ABCl
log[1]=EFG
log[2]=HIJ
 
i=0
while [ $i -lt 3 ]  <------ what is the meaning of ($i - lt 3)
do
   print ${log[$i]}
   (( i=i+1 ))
done

Test that the value held in variable "i" (typically used for an index variable) is less than 3. Note that variable i is incremented at the end of the loop, increasing its value by 1. So, it loops 3 times and is used as the index of the array called "log", thus displaying its contents.

You could use (( $i < 3 )) which may make more sense?