So .. no thrills no frills. If you are searching for this .. you know what you are looking at and can modify this as needed.
#!/usr/bin/ksh export PATH=$PATH:/sbin:/bin:/usr/bin:/usr/local/bin:/usr/sbin:/usr/local/bin DATE=`date '+%Y.%m.%d_%H.%M.%S'` count=1 while true do echo ${count} (( count++ )) if [[ ${count} -eq 11 ]]; then count=1 fi sleep 1 done
This script will run forever and output:
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10