I was wondering if it is possible to use curl to only show the content-type of the response header.
I want to check if the content-type is text/html for example before downloading instate of downloading the file and then find out it is application/pdf.
I used the example below in the hope that it would return the document if it is valid for me and else do nothing or something! The sample below just prints the full content of the page.
curl -F "type=text/html" www.google.nl
curl -F "type=text/html" http://www.axmag.com/download/pdfurl-guide.pdf
-F is for forms. Instead you want to send a
HEAD request for retrieving only the response header without the response body by using option
To display an URL's content type:
curl -s -I www.google.nl | grep "^Content-Type:"
-s is added for silent mode for excluding the progress meter and error messages.
You can also specify the
Accept header in your HTTP request. This header is used to accept only specific content types:
curl -s -H "Accept: text/html" http://www.axmag.com/download/pdfurl-guide.pdf
But the disadvantage is that most webservers will serve you an error page which also has the content type
text/html. Hence you will still get a HTML file.