Cronjob is not running in Linux

Question

So I am trying to automate backups to S3 buckets through linux.

The script I am trying to run is

TIME=`date +%b-%d-%y`           
FILENAME=backup-$TIME.tar.gz    
SRCDIR=/opt/nexus                     
DESDIR=/usr/local/backup            
tar -cpzf $DESDIR/$FILENAME $SRCDIR 
aws s3 cp /usr/local/backup/backup.tar.gz s3://s3backup

The cronjob to run that script is 44 11 * * * ./backup.sh

However whenever I try to run the backup script (by updating cronjob) it does not seem to be working at all.

Any ideas why it will not work?

Answer 1

Do not use relative path names in cron job or script.

44 11 * * * ./backup.sh

Instead, use full path of the script.

44 11 * * * <full_path>/backup.sh

In addition, use full path in your script:

<full_path>/tar -cpzf $DESDIR/$FILENAME $SRCDIR 
<full_path>aws s3 cp /usr/local/backup/backup.tar.gz s3://s3backup

Make sure the cron job is added for the user who has the AWS credentials set up correctly.

Answer 2

You are creating a date stamped backup file, but attempting to copy static file name. Try changing the copy command to:

aws s3 cp $DESDIR/$FILENAME s3://s3backup