CODEWITHSUNDEEP
pythonbashcurl
Yahya Uddin
Yahya Uddin

Reputation: 28951

Run python, with a parameter, on a cURL command on one line

I want to run the following commands in one line:

$ curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -O
$ python ./awslogs-agent-setup.py --region eu-west-2

How can I do this?

I tried the following

$ curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -s | python --region eu-west-2

But I get the error:

Unknown option: --

Upvotes: 4

Views: 2685

Answers (2)

Michael Ababio
Michael Ababio

Reputation: 117

Why not just use &&

curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -O && python ./awslogs-agent-setup.py --region eu-west-2

and if you want to do without creating a file just to delete later, do this:

curl -s https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py | python /dev/stdin --region eu-west-2

Execute bash script from URL

Upvotes: 0

Inian
Inian

Reputation: 85895

You could let the python interpreter read from stdin using /dev/stdin (similar to python -) and pass the additional arguments alongside.

curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -s |\
     python /dev/stdin --region eu-west-2

As Barmar points out using /dev/stdin could be OS specific in which case using python - would be more standard

curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -s |\
     python - --region eu-west-2

As curl outputs the file content to stdout, you can pipe it over to the standard input of the interpreter.

Or use process-substitution feature in bash (<()), which lets you treat the output of a command as if it were a file to read from

python <(curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -s) --region eu-west-2

Upvotes: 6

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