hugehelp.c

harvest是一个下载html网页得机器人

"              If this option is used several times, the ones fol-\n"
, stdout);
 fputs(
"              lowing the first will append data.\n"
"\n"
"       --digest\n"
"              (HTTP) Enables HTTP Digest authentication. This  is\n"
"              a  authentication  that  prevents the password from\n"
"              being sent over the wire in clear text. Use this in\n"
"              combination with the normal -u/--user option to set\n"
"              user name and password. See also --ntlm,  --negoti-\n"
"              ate  and  --anyauth  for related options. (Added in\n"
"              curl 7.10.6)\n"
"\n"
, stdout);
 fputs(
"              If this option is used several times, the following\n"
"              occurrences make no difference.\n"
"\n"
"       --disable-eprt\n"
"              (FTP)  Tell curl to disable the use of the EPRT and\n"
"              LPRT commands when doing active FTP transfers. Curl\n"
"              will  normally  always  first  attempt to use EPRT,\n"
"              then LPRT before using PORT, but with this  option,\n"
"              it  will  use  PORT  right  away. EPRT and LPRT are\n"
, stdout);
 fputs(
"              extensions to the original FTP  protocol,  may  not\n"
"              work  on  all servers but enable more functionality\n"
"              in a better way than the traditional PORT  command.\n"
"              (Aded in 7.10.5)\n"
"\n"
"              If  this  option is used several times, each occur-\n"
"              rence will toggle this on/off.\n"
"\n"
"       --disable-epsv\n"
"              (FTP) Tell curl to disable the use of the EPSV com-\n"
"              mand  when  doing  passive FTP transfers. Curl will\n"
, stdout);
 fputs(
"              normally always first attempt to  use  EPSV  before\n"
"              PASV,  but  with this option, it will not try using\n"
"              EPSV.\n"
"\n"
"              If this option is used several times,  each  occur-\n"
"              rence will toggle this on/off.\n"
"\n"
"       -D/--dump-header <file>\n"
"              Write the protocol headers to the specified file.\n"
"\n"
"              This  option is handy to use when you want to store\n"
"              the headers that a HTTP site sends to you.  Cookies\n"
, stdout);
 fputs(
"              from  the  headers  could  then be read in a second\n"
"              curl invoke by using the  -b/--cookie  option!  The\n"
"              -c/--cookie-jar  option  is however a better way to\n"
"              store cookies.\n"
"\n"
"              When used on FTP, the ftp server response lines are\n"
"              considered  being  \"headers\"  and  thus  are  saved\n"
"              there.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
, stdout);
 fputs(
"       -e/--referer <URL>\n"
"              (HTTP)  Sends the \"Referer Page\" information to the\n"
"              HTTP  server.  This  can  also  be  set  with   the\n"
"              -H/--header   flag   of  course.   When  used  with\n"
"              -L/--location you can append \";auto\" to the referer\n"
"              URL to make curl automatically set the previous URL\n"
"              when it follows a  Location:  header.  The  \";auto\"\n"
"              string  can be used alone, even if you don't set an\n"
, stdout);
 fputs(
"              initial referer.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"       --environment\n"
"              (RISC  OS  ONLY)  Sets a range of environment vari-\n"
"              ables, using the names the -w option  supports,  to\n"
"              easier allow extraction of useful information after\n"
"              having run curl.\n"
"\n"
"              If this option is used several times,  each  occur-\n"
"              rence will toggle this on/off.\n"
"\n"
, stdout);
 fputs(
"       --egd-file <file>\n"
"              (HTTPS)  Specify the path name to the Entropy Gath-\n"
"              ering Daemon socket. The socket is used to seed the\n"
"              random  engine  for  SSL  connections. See also the\n"
"              --random-file option.\n"
"\n"
"       -E/--cert <certificate[:password]>\n"
"              (HTTPS) Tells curl to use the specified certificate\n"
"              file  when  getting a file with HTTPS. The certifi-\n"
"              cate must be in PEM format.  If the optional  pass-\n"
, stdout);
 fputs(
"              word isn't specified, it will be queried for on the\n"
"              terminal. Note that this certificate is the private\n"
"              key and the private certificate concatenated!\n"
"\n"
"              If  this option is used several times, the last one\n"
"              will be used.\n"
"\n"
"       --cacert <CA certificate>\n"
"              (HTTPS) Tells curl to use the specified certificate\n"
"              file  to verify the peer. The file may contain mul-\n"
, stdout);
 fputs(
"              tiple CA certificates. The certificate(s)  must  be\n"
"              in PEM format.\n"
"\n"
"              curl  recognizes  the  environment  variable  named\n"
"              'CURL_CA_BUNDLE' if that is set, and uses the given\n"
"              path  as  a  path  to a CA cert bundle. This option\n"
"              overrides that variable.\n"
"\n"
"              The windows version of curl will automatically look\n"
"              for  a  CA  certs  file named 'curl-ca-bundle.crt',\n"
, stdout);
 fputs(
"              either in the same directory as curl.exe, or in the\n"
"              Current  Working  Directory, or in any folder along\n"
"              your PATH.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       --capath <CA certificate directory>\n"
"              (HTTPS) Tells curl to use the specified certificate\n"
"              directory to verify the peer. The certificates must\n"
"              be  in PEM format, and the directory must have been\n"
, stdout);
 fputs(
"              processed using the c_rehash utility supplied  with\n"
"              openssl.  Using  --capath  can  allow  curl to make\n"
"              https connections much more efficiently than  using\n"
"              --cacert if the --cacert file contains many CA cer-\n"
"              tificates.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       -f/--fail\n"
"              (HTTP)  Fail  silently (no output at all) on server\n"
, stdout);
 fputs(
"              errors. This is mostly done  like  this  to  better\n"
"              enable  scripts  etc  to  better  deal  with failed\n"
"              attempts. In normal cases when a HTTP server  fails\n"
"              to  deliver  a document, it returns a HTML document\n"
"              stating so (which  often  also  describes  why  and\n"
"              more).  This flag will prevent curl from outputting\n"
"              that and fail silently instead.\n"
"\n"
, stdout);
 fputs(
"              If this option is used twice, the second will again\n"
"              disable silent failure.\n"
"\n"
"       --ftp-create-dirs\n"
"              (FTP)  When  an  FTP URL/operation uses a path that\n"
"              doesn't currently exist on the server, the standard\n"
"              behaviour  of  curl  is to fail. Using this option,\n"
"              curl will instead attempt to create missing  direc-\n"
"              tories. (Added in 7.10.7)\n"
"\n"
, stdout);
 fputs(
"              If this option is used twice, the second will again\n"
"              disable silent failure.\n"
"\n"
"       -F/--form <name=content>\n"
"              (HTTP) This lets curl emulate a filled in  form  in\n"
"              which  a  user  has pressed the submit button. This\n"
"              causes curl to POST  data  using  the  content-type\n"
"              multipart/form-data   according  to  RFC1867.  This\n"
"              enables uploading of binary files etc. To force the\n"
, stdout);
 fputs(
"              'content'  part  to  be  be a file, prefix the file\n"
"              name with an @ sign. To just get the  content  part\n"
"              from  a  file, prefix the file name with the letter\n"
"              <. The difference between @ and < is  then  that  @\n"
"              makes  a  file  get  attached in the post as a file\n"
"              upload, while the < makes a text field and just get\n"
"              the contents for that text field from a file.\n"
"\n"
, stdout);
 fputs(
"              Example,  to send your password file to the server,\n"
"              where 'password' is the name of the  form-field  to\n"
"              which /etc/passwd will be the input:\n"
"\n"
"              curl -F password=@/etc/passwd www.mypasswords.com\n"
"\n"
"              To  read  the file's content from stdin insted of a\n"
"              file, use - where the  file  name  should've  been.\n"
"              This goes for both @ and < constructs.\n"
"\n"
, stdout);
 fputs(
"              You can also tell curl what Content-Type to use for\n"
"              the file upload part, by using 'type=', in a manner\n"
"              similar to:\n"
"\n"
"              curl -F \"web=@index.html;type=text/html\" url.com\n"
"\n"
"              See further examples and details in the MANUAL.\n"
"\n"
"              This option can be used multiple times.\n"
"\n"
"       -g/--globoff\n"
"              This option switches off the \"URL globbing parser\".\n"
"              When you set this option, you can specify URLs that\n"
, stdout);
 fputs(
"              contain  the letters {}[] without having them being\n"
"              interpreted by curl itself. Note that these letters\n"
"              are  not  normal legal URL contents but they should\n"
"              be encoded according to the URI standard.\n"
"\n"
"       -G/--get\n"
"              When used, this option will make all data specified\n"
"              with  -d/--data  or  --data-binary  to be used in a\n"
"              HTTP GET request instead of the POST  request  that\n"
, stdout);
 fputs(
"              otherwise  would be used. The data will be appended\n"
"              to the URL with a '?'  separator.\n"
"\n"
"              If used in combination with -I, the POST data  will\n"
"              instead be appended to the URL with a HEAD request.\n"
"\n"
"              If used multiple times, nothing special happens.\n"
"\n"
"       -h/--help\n"
"              Usage help.\n"
"\n"
"       -H/--header <header>\n"
"              (HTTP) Extra header to use when getting a web page.\n"
, stdout);
 fputs(
"              You  may  specify any number of extra headers. Note\n"
"              that if you should add a custom header that has the\n"
"              same  name  as  one of the internal ones curl would\n"
"              use,  your  externally  set  header  will  be  used\n"
"              instead  of  the  internal  one. This allows you to\n"
"              make even trickier stuff than curl  would  normally\n"
"              do.  You  should not replace internally set headers\n"
, stdout);
 fputs(
"              without knowing perfectly well what  you're  doing.\n"
"              Replacing  an internal header with one without con-\n"
"              tent on the right side of the  colon  will  prevent\n"
"              that header from appearing.\n"
"\n"
"              This   option   can   be  used  multiple  times  to\n"
"              add/replace/remove multiple headers.\n"
"\n"
"       -i/--include\n"
"              (HTTP) Include the HTTP-header in the  output.  The\n"
, stdout);
 fputs(
"              HTTP-header  includes things like server-name, date\n"
"              of the document, HTTP-version and more...\n"
"\n"
"              If this option is used twice, the second will again\n"
"              disable header include.\n"
"\n"
"       --interface <name>\n"
"              Perform  an  operation using a specified interface.\n"
"              You can enter interface name, IP  address  or  host\n"
"              name. An example could look like:\n"
"\n"
"              curl --interface eth0:1 http://www.netscape.com/\n"
"\n"
, stdout);
 fputs(
"              If  this option is used several times, the last one\n"
"              will be used.\n"
"\n"
"       -I/--head\n"
"              (HTTP/FTP/FILE) Fetch the HTTP-header  only!  HTTP-\n"
"              servers feature the command HEAD which this uses to\n"
"              get nothing but the header of a document. When used\n"
"              on  a FTP or FILE file, curl displays the file size\n"
"              and last modification time only.\n"
"\n"
"              If this option is used twice, the second will again\n"
, stdout);
 fputs(
"              disable header only.\n"
"\n"
"       -j/--junk-session-cookies\n"
"              (HTTP)  When  curl  is  told to read cookies from a\n"
"              given file, this option will make  it  discard  all\n"
"              \"session  cookies\". This will basicly have the same\n"
"              effect as if a  new  session  is  started.  Typical\n"
"              browsers   always   discard  session  cookies  when\n"
"              they're closed down. (Added in 7.9.7)\n"
"\n"
, stdout);
 fputs(
"              If this option is used several times,  each  occur-\n"
"              rence will toggle this on/off.\n"
"\n"
"       -k/--insecure\n"
"              (SSL) This option explicitly allows curl to perform\n"
"              \"insecure\" SSL connections and transfers.  Starting\n"
"              with   curl  7.10,  all  SSL  connections  will  be\n"