Linux Quick question.

[BarJuice]

#!/bin/bash

#
# Make your no-cvs sources from otserv run in linux
# by Ulisses - Brasil
# Last update: Mar/2006
#

i=1
while [ $i -le 5000 ]
do
./otserv 2>> ./ots-error.txt
i=`expr $i + 1`
done

I found this linux restarter .sh script at ****** i was wondering if anyone could possibly explain to me how the script works before i go about changing things.

Hope someone can explain it to me.
Thanks in advance.