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name Punditsdkoslkdosdkoskdo

OS X: equivalent of Linux's wget

How can I do an HTTP GET from a Un*x shell script on a stock OS X system? (installing third-party software is not an option, for this has to run on a lot of different systems which I don't have control on).

For example if I start the Mercurial server locally doing a hg serve:

... $ hg serve 

And then, from a Linux that has the wget command I do a wget:

... $  wget
--2010-12-31 22:18:25--
Connecting to connected.
HTTP request sent, awaiting response... 200 Script output follows
Length: unspecified [text/html]
Saving to: `index.html

And on the terminal in which I launched the "hg serve" command, I can indeed see that an HTTP GET made its way: - - [30/Dec/2010 22:18:17] "GET / HTTP/1.0" 200 -

So on Linux one way to do an HTTP GET from a shell script is to use wget (if that command is installed of course).

What other ways are there to do the equivalent of a wget? I'm looking, in particular, for something that would work on stock OS X installs.