195

I have a crontab that wgets a PHP page every five minutes (just to run some the PHP code), and I want to send the output of the request to standard out, while sending the normal wget output to /dev/null (or otherwise hide it). I couldn't find it in the wget manual.

I'm looking for something like:

wget -o stdout http://whatever.com/page.php > /dev/null

Anyone know?

  • 5
    Mistitled, should be "How do you redirect wget to null?". – Bob Stein Dec 30 '14 at 13:47
  • 3
    @BobStein-VisiBone I think it is titled correctly. I wanted the thing that is wget-ed to go to a stdout, and the normal stdout to go to null (i.e. ignore what it usually prints, and instead print the response body). – Sean Adkinson Dec 31 '14 at 1:24
  • 6
    Oh! I stand corrected. I have started using wget http://example.com/page.php -qO- (That's a capital Oh.) That standard-outputs ONLY the response body. Is that what you wanted? – Bob Stein Dec 31 '14 at 4:32
200

wget -O - http://whatever.com/page.php > /dev/null

or, if you want to redirect standard error output also:

wget -O - http://whatever.com/page.php > /dev/null 2>&1

or, for codegolf :-)

wget -O-

| improve this answer | |
  • 16
    You may want to add -nv to avoid the progress indicator overwriting the output. – Tor Klingberg Nov 10 '15 at 15:25
  • 1
    This approach has a problem - if response status is not 200, it doesn't print body. Any thoughts to resolve it? – Imaskar Aug 13 '18 at 9:24
  • See answer from Martin Wang - you need to add -q to actually see the output. – Ondřej Stašek Mar 3 at 12:03
123

A simpler version

wget -qO- http://example.com

equivalent to

wget -q -O - http://example.com

where

  • -q turns off the output of log, including error information
  • -O -, equivlalent to -O /dev/stdout, means dump the web page to a file named /dev/stdout.
| improve this answer | |
  • 3
    The first one works with BusyBox's wget, which is very helpful. I don't think it likes having a space after the O – zymhan Jul 19 '19 at 15:10
19
wget -qO /dev/null http://whatever.com/page.php
  • -q to make it quiet
  • -O /dev/null to ignore the page contents
| improve this answer | |
9

You can also try:

wget -q -O - http://whatever.com/page.php > /dev/null 

the -q will make it "quiet"

Or have the file go to some temp html page that you don't mind having. whatever.com/tempFile.html

| improve this answer | |
4
wget -O /dev/null http://example.com/
| improve this answer | |
  • It works on my mac with wget 1.12. – Simon Aug 9 '11 at 22:29
  • Could you provide some explanation about what your code does? – Tamara Wijsman Nov 5 '11 at 1:14
  • -O means "write output to this file" – thomasrutter Nov 14 '17 at 23:57

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.