#!/bin/bash REDIS_SERVER="localhost" while true do obsid=$(redis-cli -h ${REDIS_SERVER} -a 123456 rpop single-image-reduction:obsid) echo "obsid : "$obsid if [ -z "$obsid" ]; then echo "obsid is empty" sleep 10s fi if [ -n "$obsid" ]; then echo "obsid is not empty" send-message $obsid sleep 10ms fi #exit $? done