blocks|key|4645881|text|首先，错误代码(或退出代码)的最大值是255。这是reference。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4645882|此外，--fail不允许您执行您正在寻找的操作。但是，您可以使用其他方法(编写shell脚本)来处理该场景，但不确定它对您是否有效！|4645883|http_code=$(curl+-s+-o+out.html+-w+'%25{http_code}'++http://www.google.com/linux;)

if+[[+$http_code+-eq+200+]];+then
++++exit+0
fi

##+decide+which+status+you+want+to+return+for+404+or+500
exit++204|code-block|syntax|javascript|4645884|现在执行$?，您将从中获得退出代码。|4645885|您将在out.html文件中找到响应html。|4645886|您还可以将url作为命令行参数传递给脚本。Check+here。|4645887|entityMap|0|LINK|mutability|MUTABLE|url|http://www.tldp.org/LDP/abs/html/exitcodes.html|1|http://how-to.wikia.com/wiki/How_to_read_command_line_arguments_in_a_bash_script^0|J|3|P|9|0|0|3|6|0|0|4|2|0|3|8|0|L|A|1|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|F|3|G|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|1B|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1F|8|@$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1I|8|@]|D|@$9|1J|A|1K|1|1L]]|E|$]]|$1|S|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]]]

First of all the maximum value for the error code(or exit code) is <code>255</code>. Here is the <a href="http://www.tldp.org/LDP/abs/html/exitcodes.html" rel="noreferrer">reference</a>.

Also, the <code>--fail</code> will not allow you to do what you are looking for. However, you can use alternate ways(writing a shell script) to handle the scenario, but not sure it will be effective or not for you!

<pre><code>http_code=$(curl -s -o out.html -w '%{http_code}' http://www.google.com/linux;)

if [[ $http_code -eq 200 ]]; then
 exit 0
fi

## decide which status you want to return for 404 or 500
exit 204
</code></pre>

Now do the <code>$?</code> and you'll get the exit code from there.

You'll find the response html inside the <code>out.html</code> file.

You can also pass the url to the script as commandline argument. <a href="http://how-to.wikia.com/wiki/How_to_read_command_line_arguments_in_a_bash_script" rel="noreferrer">Check here</a>.

blocks|key|4645931|text|不幸的是，使用curl是不可能的。但是你可以用wget来做这件事。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4645932|$+wget+--content-on-error+-qO-+http://httpbin.org/status/418

++++-=[+teapot+]=-

+++++++_...._
+++++.'++_+_+`.
++++%7C+."`+%5E+`".+_,
++++\_;`"---"`%7C//
++++++%7C+++++++;/
++++++\_+++++_/
++++++++`"""`
$+echo+$?
8|code-block|syntax|javascript|4645933|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Unfortunately not possible with curl. But you can do this with wget.

<pre><code>$ wget --content-on-error -qO- http://httpbin.org/status/418

 -=[ teapot ]=-

 _...._
 .' _ _ `.
 | ."` ^ `". _,
 \_;`"---"`|//
 | ;/
 \_ _/
 `"""`
$ echo $?
8
</code></pre>

blocks|key|139342|text|我找到了一个解决方案，因为wget不适合发送多部分/表单数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|139343|curl+-o+-+-w+"\n%25{http_code}\n"+http://httpbin.org/status/418+%7C+tee+>(tail+-n+1+%7C+cmp+<(echo+2xx)+-+)+%7C+tee+>(grep+"char+2";+echo+$?+>+status-code)+&&+grep+0+status-code|code-block|syntax|javascript|139344|解释|139345|-o+-+-w+"\n%25{http_code}\n"+-打印输出到标准输出(实际上是通过管道传输到下一个命令)，最后显示状态代码|offset|length|style|CODE|139346|tee+-输出将通过管道传送到下一个命令，并另外打印到标准输出|139347|tail+-n+1+-从最后一行提取状态代码|139348|cmp+<(echo+2xx)+-比较状态代码，仅第一个字符|139349|grep+"char+2"+-如果第一个字符需要为2，则失败|139350|在shell脚本中，你也可以做更好的比较(目前它只允许2xx，所以像300这样的重定向在cmp中是作为错误来处理的，就像上面使用它一样)|139351|entityMap^0|0|0|0|0|Q|0|0|3|0|0|9|0|0|H|0|0|D|0|18|3|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|13|8|@$K|14|L|15|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|16|8|@$K|17|L|18|M|N]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|19|8|@$K|1A|L|1B|M|N]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1C|8|@$K|1D|L|1E|M|N]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1F|8|@$K|1G|L|1H|M|N]]|9|@]|A|$]]|$1|W|3|X|5|6|7|1I|8|@$K|1J|L|1K|M|N]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]]|Z|$]]

I found a solution because wget was not suitable for sending multipart/form-data

<pre><code>curl -o - -w "\n%{http_code}\n" http://httpbin.org/status/418 | tee &gt;(tail -n 1 | cmp &lt;(echo 2xx) - ) | tee &gt;(grep "char 2"; echo $? &gt; status-code) &amp;&amp; grep 0 status-code
</code></pre>

<h3>Explanation</h3>

<code>-o - -w "\n%{http_code}\n"</code> - prints out to stdout (actually it's piped to the next command) with status code at the end 
<code>tee</code> - output will be piped to next command and additionally printed to stdout 
<code>tail -n 1</code> - extract status code from the last line 
<code>cmp &lt;(echo 2xx) -</code> compare status code, first char only 
<code>grep "char 2"</code> - if first character needs to be 2, otherwise fail 

In a shell script you can also do better comparison (currently it only allows 2xx, so redirect like 300 are are handled as an error with <code>cmp</code> how it is used above)

blocks|key|4646008|text|这是我的解决方案-它使用jq并假设主体是json|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4646009|#++this+code+adds+a+statusCode+field+to+the+json+it+receives+and+then+jq+squeezes+them+together
#+curl+7.76.0+will+have+curl+--fail-with-body+and+thus+eliminate+all+this
++local+result
++result=$(
++++curl+-sL+-w+'+{+"statusCode":+%25{http_code}}+'+-X+POST+"${headers[@]}"+"${endpoint}"+\
++++++-d+"${body}"++"$curl_opts"+%7C+jq+-ren+'[inputs]+%7C+add'
++)
#+++always+output+the+result
++echo+"${result}"
#++jq+-e+will+produce+an+error+code+if+the+expression+result+is+false+or+null+-+thus+resulting+in+a
#+error+return+code+from+this+function+naturally.+This+is+much+preferred+rather+than+assume/hardcode
#+the+existence+of+a+error+object+in+the+body+payload
++echo+"${result}"+%7C+jq+-re+'.statusCode+>=+200+and+.statusCode+<+300'+>+/dev/null|code-block|syntax|javascript|4646010|entityMap^0|C|2|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Here was my solution - it uses <code>jq</code> and assumes the body is json
<pre class="lang-sh prettyprint-override"><code># this code adds a statusCode field to the json it receives and then jq squeezes them together
# curl 7.76.0 will have curl --fail-with-body and thus eliminate all this
 local result
 result=$(
 curl -sL -w ' { &quot;statusCode&quot;: %{http_code}} ' -X POST &quot;${headers[@]}&quot; &quot;${endpoint}&quot; \
 -d &quot;${body}&quot; &quot;$curl_opts&quot; | jq -ren '[inputs] | add'
 )
# always output the result
 echo &quot;${result}&quot;
# jq -e will produce an error code if the expression result is false or null - thus resulting in a
# error return code from this function naturally. This is much preferred rather than assume/hardcode
# the existence of a error object in the body payload
 echo &quot;${result}&quot; | jq -re '.statusCode &gt;= 200 and .statusCode &lt; 300' &gt; /dev/null
</code></pre>

blocks|key|4646045|text|现在，使用curl可以做到这一点。从版本7.76.0开始，您可以执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4646046|curl+--fail-with-body+...|code-block|syntax|javascript|4646047|它所做的正是OP所要求的:显示文档主体并退出，代码为22。|4646048|请参阅https://curl.se/docs/manpage.html#--fail-with-body|offset|length|4646049|entityMap|0|LINK|mutability|MUTABLE|url|https://curl.se/docs/manpage.html#--fail-with-body^0|0|0|0|3|1E|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

This is now possible with curl. Since version 7.76.0 you can do
<pre><code>curl --fail-with-body ...
</code></pre>
Which does exactly what OP asked: shows the document body and exits with code 22.
See <a href="https://curl.se/docs/manpage.html#--fail-with-body" rel="noreferrer">https://curl.se/docs/manpage.html#--fail-with-body</a>

Calling curl without parameters, i get the page output, even with an http status code = 404:

<pre><code>$ curl http://www.google.com/linux;
&lt;!DOCTYPE html&gt;
&lt;html lang=en&gt;
 &lt;meta charset=utf-8&gt;
 &lt;meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width"&gt;
 &lt;title&gt;Error 404 (Not Found)!!1&lt;/title&gt;
 &lt;style&gt;
 *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* &gt; body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/errors/logo_sm_2.png) no-repeat}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/errors/logo_sm_2_hr.png) no-repeat 0% 0%/100% 100%;-moz-border-image:url(//www.google.com/images/errors/logo_sm_2_hr.png) 0}}@media only screen and (-webkit-min-device-pixel-ratio:2){#logo{background:url(//www.google.com/images/errors/logo_sm_2_hr.png) no-repeat;-webkit-background-size:100% 100%}}#logo{display:inline-block;height:55px;width:150px}
 &lt;/style&gt;
 &lt;a href=//www.google.com/&gt;&lt;span id=logo aria-label=Google&gt;&lt;/span&gt;&lt;/a&gt;
 &lt;p&gt;&lt;b&gt;404.&lt;/b&gt; &lt;ins&gt;That’s an error.&lt;/ins&gt;
 &lt;p&gt;The requested URL &lt;code&gt;/linux&lt;/code&gt; was not found on this server. &lt;ins&gt;That’s all we know.&lt;/ins&gt;

$ echo $?;
0
</code></pre>

The status code is 0.

Calling it with --fail will not show the output:

<pre><code>$ curl --fail http://www.google.com/linux;
curl: (22) The requested URL returned error: 404 Not Found

$ echo $?;
22
</code></pre>

The status code is 22 now ...

Id' like to get the output even when http status = 404, 500 (like the first curl execution) and, at the same time, get a different system error (like in the second curl execution, $? = 22).
Is it possible with curl? If not, how could I achieve this with another tool (this tool must accept file uploads e post data! wget doesn't seems to be an alternative ...)

Thanks.

Get page output with curl --fail

在不带参数的情况下调用curl，我得到了页面输出，即使http状态码= 404：$ curl http://www.google.com/linux;<!DOCTYPE html><html lang=en> <meta charset=utf-8> <meta name=viewport content="ini...

问使用curl获取页面输出--fail
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用curl获取页面输出--failEN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问使用curl获取页面输出--fail
EN