Linux Wget 输出文档和标头到 STDOUT
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Wget output document and headers to STDOUT
提问by user1239398
I'm trying to output document body and its headers to stdout with wget by wget -S -O - http://google.com
我正在尝试使用 wget 将文档正文及其标题输出到标准输出 wget -S -O - http://google.com
but it shows only html docment.
但它只显示 html 文档。
Thanks
谢谢
UPD:
更新：
Worked this wget --save-headers --output-document - http://google.com
做了这个 wget --save-headers --output-document - http://google.com
wget --versionshows GNU Wget 1.11.4 Red Hat modified
wget --version显示 GNU Wget 1.11.4 Red Hat 修改
回答by BeniBela
It works here:
它在这里工作：
$ wget -S -O - http://google.com
HTTP request sent, awaiting response...
HTTP/1.1 301 Moved Permanently
Location: http://www.google.com/
Content-Type: text/html; charset=UTF-8
Date: Sat, 25 Aug 2012 10:15:38 GMT
Expires: Mon, 24 Sep 2012 10:15:38 GMT
Cache-Control: public, max-age=2592000
Server: gws
Content-Length: 219
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Location: http://www.google.com/ [following]
--2012-08-25 12:20:29-- http://www.google.com/
Resolving www.google.com (www.google.com)... 173.194.69.99, 173.194.69.104, 173.194.69.106, ...
...skipped a few more redirections ...
[<=> ] 0 --.-K/s
<!doctype html><html itemscope="itemscope" itemtype="http://schema.org/WebPage"><head><meta itemprop="image" content="/images/google_favicon_128.png"><ti
... skipped ...
perhaps you need to update your wget (~$ wget --version
GNU Wget 1.14 built on linux-gnu.)
也许你需要更新你的 wget ( ~$ wget --version
GNU Wget 1.14 built on linux-gnu.)
回答by thkala
wget -S -O - http://google.comworks as expected for me, butwith a caveat: the headers are considered debugging information and as such they are sent to the standard errorrather than the standard output. If you are redirecting the standard output to a file or another process, you will only get the document contents.
wget -S -O - http://google.com对我来说按预期工作，但有一个警告：标头被视为调试信息，因此它们被发送到标准错误而不是标准输出。如果您将标准输出重定向到文件或其他进程，您将只能获得文档内容。
You can try redirecting the standard error to the standard output as a possible solution. For example, in bash:
您可以尝试将标准错误重定向到标准输出作为可能的解决方案。例如，在bash：
$ wget -q -S -O - 2>&1 | grep ...
or
或者
$ wget -q -S -O - 1>wget.txt 2>&1
The -qoption suppresses the progress bar and some other annoyingly chatty parts of the wgetoutput.
该-q选项会抑制进度条和其他一些烦人的wget输出部分。
回答by Joseph Lust
Try the following, no extra headers
尝试以下，没有额外的标题
wget -qO- www.google.com
Note the trailing -. This is part of the normal command argument for -Oto cat out to a file, but since we don't use >to direct to a file, it goes out to the shell. You can use -qO-or -qO -.
注意尾随-. 这是用于-Ocat out 到文件的正常命令参数的一部分，但由于我们不习惯于>直接指向文件，因此它会输出到 shell。您可以使用-qO-或-qO -。
回答by maniac_on_moon
This will not work:
这将不起作用：
wget -q -S -O - google.com 1>wget.txt 2>&1
since redirects are evaluated right to left, this sends html to wget.txt and the header to STDOUT:
由于重定向是从右到左计算的，这会将 html 发送到 wget.txt 并将标头发送到 STDOUT：
wget -q -S -O - google.com 2>&1 1>wget.txt
回答by Abhishek saharn
This worked for me for printing response with header:
这对我有用，用于打印带有标题的响应：
wget --server-response http://www.example.com/
