BashOperator for shell commands in Apache Airflow - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the BashOperator from Airflow.

Apache Airflow

from airflow.operators.[1] import BashOperator

Drag options to blanks, or click blank then click option'

Apython

Bbash_operator

Cemail

Ddummy

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'python' instead of 'bash_operator' as the module name.

Confusing BashOperator with other operators like EmailOperator.

The BashOperator is imported from airflow.operators.bash_operator.

2fill in blank

medium

Complete the code to create a BashOperator task that runs 'echo Hello World'.

Apache Airflow

task = BashOperator(task_id='print_hello', bash_command='[1]')

Drag options to blanks, or click blank then click option'

Als -l

Bpwd

Cdate

Decho Hello World

Attempts:

3 left

💡 Hint

Common Mistakes

Using commands that do not print 'Hello World'.

Forgetting to put the command inside quotes.

The bash_command should be the shell command to run. Here, echo Hello World prints the message.

3fill in blank

hard

Fix the error in the BashOperator task by completing the missing argument.

Apache Airflow

task = BashOperator([1]='print_date', bash_command='date')

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Adag

Bbash_command

Ctask_id

Downer

Attempts:

3 left

💡 Hint

Common Mistakes

Using bash_command instead of task_id as the first argument.

Omitting the task_id argument.

The task_id argument is required to name the task uniquely.

4fill in blank

hard

Fill both blanks to create a BashOperator that runs a command and assign it to a DAG.

Apache Airflow

task = BashOperator(task_id='list_files', bash_command='ls -l', [1]=[2])

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Adag

Bmy_dag

Cdefault_args

Dargs

Attempts:

3 left

💡 Hint

Common Mistakes

Using default_args instead of dag.

Passing the wrong variable name for the DAG.

The dag argument assigns the task to the DAG object named my_dag.

5fill in blank

hard

Fill all three blanks to create a BashOperator with task_id, bash_command, and dag assigned.

Apache Airflow

task = BashOperator([1]='run_script', [2]='sh script.sh', [3]=my_dag)

Drag options to blanks, or click blank then click option'

Atask_id

Bbash_command

Cdag

Downer

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up argument names.

Forgetting to assign the task to the DAG.

The three main arguments are task_id, bash_command, and dag.