Bash script and curl: how to get status code and content and store in var in same command

Question

In PHP or Python, for example, you cand do curl and receive a object with all properties organized.

In bash I have to invoke curl application.

I need to get status code and content in same command (its obvious because the status code is relationed with success or not to get content). But how I can do this?

I am trying this:

# get url in function
urlcurl=$(echo $@)
# create new file descriptor and redirect to STDOUT
exec 3>&1
# get curl status code and store in curlstatuscode
curlstatuscode=$(curl -L -k -w "%{http_code}" -o >(cat >&3) --silent \"${urlcurl}\")

My problem is about content: When I execute this in terminal I receive content in STDOUT (that is the command had to do). But I am trying to store this STDOUT using regular redirect expressions and they not work.

One example:

exec 3>&1
HTTP_STATUS=$(curl -k --silent -L -w "%{http_code}" -o >(cat >&3) 'http://example.com')
echo $HTTP_STATUS

If you not understood what I am trying to do, roughly mode (and invalid) would be something like that: (I know that is invalid, I only want to clarify)

HTTP_CONTENT=$(echo `HTTP_STATUS=$(curl -k --silent -L -w "%{http_code}" -o >(cat >&3) 'http://example.com'`)

HTTP_CONTENT will get get content and HTTP_STATUS will get curl status code.

Please do not say to user another language. I need to solve this in bash. Is very simple to do that in other languages (mainly oriented objects). I really want to do this in bash.

Thank you!

anubhava · Accepted Answer · 2015-12-17 16:13:54Z

1

Since http status is the last line in curl output, you can do like this in BASH:

out=$(curl -k --silent -L -w "\n%{http_code}" 'minecraft.net/haspaid.jsp?user=apterixbr')
http_status="${out##*$'\n'}"
http_content="${out%$'\n'*}"

edited Dec 17, 2015 at 16:13

answered Dec 17, 2015 at 6:53

anubhava

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5 Comments

Francisco Panis Kaseker Over a year ago

worked in part. if I get no content (like when you get timedout), http_status and http_content will be empty. http_content is OK to be empty, but http_status had to be timedout code.

Francisco Panis Kaseker Over a year ago

One way is use -o option after 'example.com' to write in file, but I do not want provoke write in storage without really need this.

Francisco Panis Kaseker Over a year ago

other test failed: sometimes status code will not be in last line. example: curl -k --silent -L -w '%{http_code}' 'minecraft.net/haspaid.jsp?user=apterixbr'

anubhava Over a year ago

Check updated answer. "\n%{http_code}" will ensure one newline before status code.

Francisco Panis Kaseker Over a year ago

now worked as a charm. thank you! hope the best for you :)

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