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What does the curl command return?
(HTTP) Request a compressed response using one of the algorithms curl supports, and return the uncompressed document. If this option is used and the server sends an unsupported encoding, Curl will report an error.
What is — fail in curl?
–fail makes curl stop immediately after having received the response headers – if the response code says so. –fail-with-body will instead first save the body per normal conventions and then return an error if the HTTP response code was 400 or larger.
How do you get the curl response header?
We can use curl -v or curl -verbose to display the request headers and response headers in the cURL command. The > lines are request headers . The < lines are response headers .
How to make curl return actual HTTP status codes?
You can make curl return actual HTTP status codes on standard out as long as you use the. -w or –write-out . command line option, using the format of %{http_code}.
What is the exit code of a curl script?
In fact, you can simplify your script even more if its last command is the curl invocation. The exit code of the script will be the return code of the script’s last command. Thanks for contributing an answer to Unix & Linux Stack Exchange!
Do you save the output of curl to the Rep variable?
There’s no need to save the output of the curl command into the rep variable if all you do with it is print it to standard output. Regarding the second question, “how to prevent the output from print”, you can replace the -v/–verbose option with the -s/–silent option (Silent mode. Don’t show progress meter or error messages).
Is it safe to return error 22 in curl?
This flag will prevent curl from outputting that and return error 22. This method is not fail-safe and there are occasions where non-successful response codes will slip through, especially when authentication is involved (response codes 401 and 407).