Here is a complete step-by-step instruction to set a cronjob using Curator to delete ElasticSearch indices periodically. Installation of Python and Pip You can skip this step, if you already have python and pip. Step 1: Ensure that all packages are up-to-date. After running the command below, you’ll get an output of any packages getting their update. sudo apt-get update Step 2: Install python and pip using apt-get. sudo apt-get install -y python-dev python-pip Step 3: