simple shell wrapper to run any command in a loop

up.sh

#!/bin/sh

re='^[0-9]+$'
if ! [[ $1 =~ $re ]] ; then
   echo "first arg $1 must be number of seconds to wait between loops" >&2; exit 1
fi

count=0

while [ true ]
do
  date
  $2 $3 $4 $5 $6 $7 $8 $9
  count=$(($count+1))
  echo "loop $count sleeping $1"
  sleep $1
done