On 08/06/2018 06:37 AM, Aleksandar Lazic wrote:
> Hi.
>
> On 06/08/2018 00:50, ToddAndMargo wrote:
>> On 08/05/2018 04:47 PM, ToddAndMargo wrote:
>>> On 08/05/2018 04:20 PM, ToddAndMargo wrote:
>>>> On 08/05/2018 03:44 PM, Daniel Stenberg wrote:
>>>>> On Sun, 5 Aug 2018, ToddAndMargo wrote:
>>>>>
>>>>>> Is there a way to ask curl to tell me is a url exists without
>>>>>> downloading it if it does?
>>>>>
>>>>>   curl -f http://example.com/non-exists
>>>>>
>>>>
>>>> $ curl -f http://example.com/non-exists
>>>> curl: (22) The requested URL returned error: 404 Not Found
>>>>
>>>> Perfect.  Just look for the 404
>>>>
>>>> Thank you!
>>>>
>>>>
>>>
>>> Adding --head to it keep it from downloading if
>>> the file exists
>>>
>>> $ curl --fail --head http://example.com/non-exists
>>> curl: (22) The requested URL returned error: 404 Not Found
>>>
>>>
>>> $ curl --fail --head http://gbis.com
>>> HTTP/1.1 200 OK
>>> Date: Sun, 05 Aug 2018 23:46:25 GMT
>>> Server: Apache/2.2.14 (Fedora)
>>> X-Powered-By: PHP/5.2.9
>>> Set-Cookie: PHPSESSID=k8uiqbdqk4cq299r6vscdgpr41; path=/
>>> Expires: Thu, 19 Nov 1981 08:52:00 GMT
>>> Cache-Control: no-store, no-cache, must-revalidate, post-check=0,
>>> pre-check=0
>>> Pragma: no-cache
>>> Connection: close
>>> Content-Type: text/html; charset=ISO-8859-1
>>
>>
>> Since I am calling this from a Perl 6 module, $? is
>> zero for exists and not zero for fail.  So,
>>
>>  if $RtnCode = 0 { return 1; } else { return 0; }
>>
>> 0 is false and 1 is true in Perl 6
>
> I would try to add --silent
>
> aleks_at_aleks-PC ~
> $ curl --silent --fail --head -o /dev/null http://gbis.com/ll ; echo $?
> 22
>
> aleks_at_aleks-PC ~
> $ curl --silent --fail --head -o /dev/null http://gbis.com/ ; echo $?
> 0

Thank you!

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Received on 2018-08-06