Hello,

I changed the format of the tables a long time ago so that they could be parsed in standard Linux tools such as AWK.
https://github.com/apache/airflow/pull/8409
For example, to list the files that contain the DAG, I could run the command below.
```
airflow dags list | grep -v "dag_id" | awk '{print $2}' | sort | uniq
```
To pause all dags:
```bash
airflow dags list | awk '{print $1}' | grep -v "dag_id"| xargs airflow dags pause
```
Unfortunately [that has changed](https://github.com/apache/airflow/pull/12704) and we now have more fancy tables, but harder to use in standard Linux tools.

Alternatively, we can use JSON output, but I don't always have JQ installed on production environment, so performing administrative tasks is difficult for me.
```bash
$  docker run apache/airflow:2.0.1 bash -c "jq"

/bin/bash: jq: command not found
```

Best regards,
Kamil Breguła

CC: @turbaszek 
airflow/cli/cli_parser.py
required=False,
    action="store_true",
)
ARG_USERNAME = Arg(('-u', '--username'), help='Username of the user', required=True, type=str)
ARG_USERNAME_OPTIONAL = Arg(('-u', '--username'), help='Username of the user', type=str)
ARG_FIRSTNAME = Arg(('-f', '--firstname'), help='First name of the user', required=True, type=str)
ARG_LASTNAME = Arg(('-l', '--lastname'), help='Last name of the user', required=True, type=str)
ARG_ROLE = Arg(
    ('-r', '--role'),
    help='Role of the user. Existing roles include Admin, User, Op, Viewer, and Public',
    required=True,
    type=str,
)
ARG_EMAIL = Arg(('-e', '--email'), help='Email of the user', required=True, type=str)
ARG_EMAIL_OPTIONAL = Arg(('-e', '--email'), help='Email of the user', type=str)
ARG_PASSWORD = Arg(
    ('-p', '--password'),
    help='Password of the user, required to create a user without --use-random-password',
    type=str,
)
ARG_USE_RANDOM_PASSWORD = Arg(
    ('--use-random-password',),
    help='Do not prompt for password. Use random string instead.'
    ' Required to create a user without --password ',
    default=False,
    action='store_true',
)
ARG_USER_IMPORT = Arg(
    ("import",),
    metavar="FILEPATH",