‘airflow -h’ command prints help about all the airflow commands.
$airflow -h
usage: airflow [-h]
{backfill,list_dag_runs,list_tasks,clear,pause,unpause,trigger_dag,delete_dag,show_dag,pool,variables,kerberos,render,run,initdb,list_dags,dag_state,task_failed_deps,task_state,serve_logs,test,webserver,resetdb,upgradedb,checkdb,shell,scheduler,worker,flower,version,connections,create_user,delete_user,list_users,sync_perm,next_execution,rotate_fernet_key,config,info}
...
positional arguments:
{backfill,list_dag_runs,list_tasks,clear,pause,unpause,trigger_dag,delete_dag,show_dag,pool,variables,kerberos,render,run,initdb,list_dags,dag_state,task_failed_deps,task_state,serve_logs,test,webserver,resetdb,upgradedb,checkdb,shell,scheduler,worker,flower,version,connections,create_user,delete_user,list_users,sync_perm,next_execution,rotate_fernet_key,config,info}
sub-command help
backfill Run subsections of a DAG for a specified date range. If reset_dag_run option is used, backfill will first prompt users whether airflow should
clear all the previous dag_run and task_instances within the backfill date range. If rerun_failed_tasks is used, backfill will auto re-run
the previous failed task instances within the backfill date range.
list_dag_runs List dag runs given a DAG id. If state option is given, it will onlysearch for all the dagruns with the given state. If no_backfill option is
given, it will filter outall backfill dagruns for given dag id.
list_tasks List the tasks within a DAG
clear Clear a set of task instance, as if they never ran
pause Pause a DAG
unpause Resume a paused DAG
trigger_dag Trigger a DAG run
delete_dag Delete all DB records related to the specified DAG
show_dag Displays DAG's tasks with their dependencies
pool CRUD operations on pools
variables CRUD operations on variables
kerberos Start a kerberos ticket renewer
render Render a task instance's template(s)
run Run a single task instance
initdb Initialize the metadata database
list_dags List all the DAGs
dag_state Get the status of a dag run
task_failed_deps Returns the unmet dependencies for a task instance from the perspective of the scheduler. In other words, why a task instance doesn't get
scheduled and then queued by the scheduler, and then run by an executor).
task_state Get the status of a task instance
serve_logs Serve logs generate by worker
test Test a task instance. This will run a task without checking for dependencies or recording its state in the database.
webserver Start a Airflow webserver instance
resetdb Burn down and rebuild the metadata database
upgradedb Upgrade the metadata database to latest version
checkdb Check if the database can be reached.
shell Runs a shell to access the database
scheduler Start a scheduler instance
worker Start a Celery worker node
flower Start a Celery Flower
version Show the version
connections List/Add/Delete connections
create_user Create an account for the Web UI (FAB-based)
delete_user Delete an account for the Web UI
list_users List accounts for the Web UI
sync_perm Update permissions for existing roles and DAGs.
next_execution Get the next execution datetime of a DAG.
rotate_fernet_key Rotate all encrypted connection credentials and variables; see https://airflow.readthedocs.io/en/stable/howto/secure-
connections.html#rotating-encryption-keys.
config Show current application configuration
info Show information about current Airflow and environment
optional arguments:
-h, --help show this help message and exit
