guys.. My first post ! hope not the last .. I have few bunch of servers on aws ec2 platforms. I made a simple script to backup my custom logs on their s3 storage bucket. The problem is the script works fine .. but I tried to add it to the crontab. And the script executes but not the s3 sync/mv part ! Here is my code: NOW=$(date "+%b_%d_%Y") MY_HOSTNAME=`uname -n` mv /opt/req/req* /opt/req/bkup/ mv /opt/response/res* /opt/req/bkup/ cd /opt/req/bkup/ tar -cvf ${MY_HOSTNAME}_req_bkup_${NOW}.tar re* rm *.txt aws s3 mv /opt/req/bkup/* s3://req `