What does this command do: 'wget -qO- 127.0.0.1'?

Question

In the provisioning part of vagrant guide, there is a command wget -qO- 127.0.0.1 to check if apache is installed property.

Can anyone explain the command more in detail? I dont understand what the -qO- option does. Also, what is the meaning of wget to 127.0.0.1?

Thanks!

See: http://www.gnu.org/software/wget/manual/wget.html Also see: http://stackoverflow.com/questions/9691367/how-do-i-request-a-file-but-not-save-it-with-wget — Evan Trimboli, Jul 07 '15 at 01:44

score 4 · Accepted Answer · answered Jul 07 '15 at 01:45

The dash after the O instructs output to go to standard output.

The q option means the command should be "quiet" and not write to standard output.

The two options together mean the instruction can be used nicely in a pipeline.

As far as added 127.0.0.1 as the source of the wget, that is there to make sure you have a local webserver running. Running wget on the commandline is faster than bringing up a browser.

What does this command do: 'wget -qO- 127.0.0.1'?

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