如果我通过curl向普通网站发出请求,我可以将输出定向到带有标题数据的文件,如下所示：
命令：
curl -is www.google.de > temp.txt
输出：
HTTP/1.1 200 OK Date: Wed,29 Feb 2012 16:49:09 GMT Expires: -1 Cache-Control: private,max-age=0 Content-Type: text/html; charset=ISO-8859-1 Set-Cookie: PREF=ID=16ad7441d475580e:FF=0:TM=1330534149:LM=1330534149:S=2MpGe04BWQ8Kn3P7; expires=Fri,28-Feb-2014 16:49:09 GMT; path=/; domain=.google.de Set-Cookie: NID=57=BCgUcqNQU5dMWcBEMP85saDNUdXg2_LG4eZFmS-yr1W38UyTNuB8BU8iiOOsK2747WGJG99uJDW6t8N78D4QzBma7q2EmKQ69-gCjOysFNLGFggrvMxcqEOl7p1hemeQ; expires=Thu,30-Aug-2012 16:49:09 GMT; path=/; domain=.google.de; HttpOnly P3P: CP="This is not a P3P policy! See http://www.google.com/support/accounts/bin/answer.py?hl=en&answer=151657 for more info." Server: gws X-XSS-Protection: 1; mode=block X-Frame-Options: SAMEORIGIN Transfer-Encoding: chunked <!doctype html><html itemscope itemtype="http://schema.org/WebPage"><head><Meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><Meta itemprop="image" content="/images/google_favicon_128.png"><title>Google</title><script>window.google={kEI:"BVdOT7OzE8_ktQaqk-WGDw",getEI:function(a){var d;while(a&&!(a.getAttribute&&(d=a.getAttribute("eid"))))a=a.parentNode;return d||google.kEI},https:function(){return window.location.protocol=="https:"},kEXPI:"31701,33551,34324,34904,35055,35091,36604,36683,36716,36946,37017,37055,37126",kCSI:{e:"31701,ei:"BVdOT7OzE8_ktQaqk-WGDw"},authuser:0,ml:function(){},kHL:"de",time:function(){return(new Date).getTime()},log:function(a,d,f,h){var e=new Image,g=google,k=g.lc,i=g.li,m="";e.onerror=(e.onload=(e.onabort=function(){delete k[i]}));k[i]=e;if(!f&&d.search("&ei=")==-1)m="&ei="+google.getEI(h);var j=f||"/gen_204?atyp=i&ct="+a+"&cad="+d+m+"&zx="+google.time(),b=/^http:/i;if(b.test(j)&&google.https()){google.ml(new Error("GLMM"),false,{src:j}); delete k[i];return}e.src=j;g.li=i...
当我对url执行相同的请求时,响应将具有状态代码400,我将收到一个错误,该错误将提示给shell并且文件将为空：
curl -is https://foursquare.com/oauth2/access_token?grant_type=authorization_code\u0026amp;client_id=SOME_CLIENT_ID\u0026amp;client_secret=SOME_CLIENT_SECRET\u0026amp;code=notavalidcode\u0026amp;redirect_uri=SOME_REDIRECT_URI\u0026gt; TEMP.TXT
用“包裹”网址
kent$ curl -is "https://foursquare.com/oauth2/access_token?grant_type=authorization_code&client_id=SOME_CLIENT_ID&client_secret=SOME_CLIENT_SECRET&code=notavalidcode&redirect_uri=SOME_REDIRECT_URI" > temp.txt kent$ cat temp.txt HTTP/1.0 200 Connection established HTTP/1.1 400 Bad Request Cache-Control: no-cache,private,no-store Content-Type: application/json; charset=utf-8 Date: Wed,29 Feb 2012 16:59:16 GMT Expires: Wed,29 Feb 2012 16:59:16 GMT Pragma: no-cache Server: Nginx/0.8.52 Content-Length: 26 Connection: keep-alive {"error":"invalid_client"}
