Explanation:

Step 1: az batch pool create
# Create a new Linux pool with a virtual machine configuration.
az batch pool create \
--id mypool \
--vm-size Standard_A1 \
--target-dedicated 2 \
--image canonical:ubuntuserver:16.04-LTS \
--node-agent-sku-id "batch.node.ubuntu 16.04"
Step 2: az batch job create
# Create a new job to encapsulate the tasks that are added.
az batch job create \
--id myjob \
--pool-id mypool
Step 3: az batch task create
# Add tasks to the job. Here the task is a basic shell command.
az batch task create \
--job-id myjob \
--task-id task1 \
--command-line "/bin/bash -c 'printenv AZ_BATCH_TASK_WORKING_DIR'"
Step 4: for i in {1..$numberOfJobs} do
References:
https://docs.microsoft.com/bs-latn-ba/azure/batch/scripts/batch-cli-sample-run-job