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 http://127.0.0.1:8000
--2010-12-31 22:18:25-- http://127.0.0.1:8000/
Connecting to 127.0.0.1:8000... 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:
127.0.0.1 - - [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.
I'm going to have to say curl http://127.0.0.1:8000 -o outfile
brew install wget
Homebrew is a package manager for OSX analogous to yum, apt-get, choco, emerge, etc. Be aware that you will also need to install Xcode and the Command Line Tools. Virtually anyone who uses the command line in OSX will want to install these things anyway.
If you can't or don't want to use homebrew, you could also:
Install wget manually:
curl -# "http://ftp.gnu.org/gnu/wget/wget-1.17.1.tar.xz" -o "wget.tar.xz"
tar xf wget.tar.xz
cd wget-1.17.1
./configure --with-ssl=openssl -with-libssl-prefix=/usr/local/ssl && make -j8 && make install
Or, use a bash alias:
function _wget() { curl "${1}" -o $(basename "${1}") ; };
alias wget='_wget'
wget answer here since the only other one was deleted by it's owner, and curl is an alternative rather than a literal equivalent.
Curl has a mode that is almost equivalent to the default wget.
curl -O <url>
This works just like
wget <url>
And, if you like, you can add this to your .bashrc:
alias wget='curl -O'
It's not 100% compatible, but it works for the most common wget usage (IMO)
for i in `seq 1 <n>` do curl -O <url>;done; where <n> is the number of times you want to iterate and <url> is the url to pull.
-L flag to follow location redirects. You can use curl -OL <url> to do that.
-O also only applies to the next argument, so to download multiple URLs you have to use something like curl -O "$url1" -O "$url2" or printf %s\\n "$url1" "$url2"|xargs -n1 curl -O.
1) on your mac type
nano /usr/bin/wget
2) paste the following in
#!/bin/bash
curl -L $1 -o $2
3) close then make it executable
chmod 777 /usr/bin/wget
That's it.
vim /usr/bin/wget though ;) haha just kidding. thanks for the answer -- this never really occurred to me and for some reason I don't feel like installing brew/fink/whatever, so kudos for the easy portable answer.
-L is important for handling http 301 responses. wget handles them by default.
Use curl;
curl http://127.0.0.1:8000 -o index.html
Here's the Mac OS X equivalent of Linux's wget.
For Linux, for instance Ubuntu on an AWS instance, use:
wget http://example.com/textfile.txt
On a Mac, i.e. for local development, use this:
curl http://example.com/textfile.txt -o textfile.txt
The -o parameter is required on a Mac for output into a file instead of on screen. Specify a different target name for renaming the downloaded file.
Use capital -O for renaming with wget. Lowercase -o will specify output file for transfer log.
You can either build wget on the mac machine or use MacPorts to install it directly.
sudo port install wget
This would work like a charm, also you can update to the latest version as soon as it's available. Port is much more stable than brew, although has a lot less number of formula and ports.
You can install MacPorts from https://www.macports.org/install.php you can download the .pkg file and install it.
Instead of going with equivalent, you can try "brew install wget" and use wget.
You need to have brew installed in your mac.
You could use curl instead. It is installed by default into /usr/bin.
wget Precompiled Mac Binary
For those looking for a quick wget install on Mac, check out Quentin Stafford-Fraser's precompiled binary here, which has been around for over a decade:
https://statusq.org/archives/2008/07/30/1954/
MD5 for 2008 wget.zip: 24a35d499704eecedd09e0dd52175582
MD5 for 2005 wget.zip: c7b48ec3ff929d9bd28ddb87e1a76ffb
No make/install/port/brew/curl junk. Just download, install, and run. Works with Mac OS X 10.3-10.12+.
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-Oor--remote-nameflag to auto rename downloaded file. e.g.curl -O http://somehost.org/file.zip