LDP/LDP/guide/docbook/abs-guide/ex25.sh

#!/bin/bash

var0=0
LIMIT=10

while [ "$var0" -lt "$LIMIT" ]
do
  echo -n "$var0 "        # -n suppresses newline.
  var0=`expr $var0 + 1`   # var0=$(($var0+1)) also works.
done

echo

exit 0