hugehelp.c

harvest是一个下载html网页得机器人

"                             the  start  until  the first byte is\n"
"                             just about to  be  transfered.  This\n"
"                             includes  time_pretransfer  and also\n"
, stdout);
 fputs(
"                             the time the server needs to  calcu-\n"
"                             late the result.\n"
"\n"
"              size_download  The  total amount of bytes that were\n"
"                             downloaded.\n"
"\n"
"              size_upload    The total amount of bytes that  were\n"
"                             uploaded.\n"
"\n"
"              size_header    The  total  amount  of  bytes of the\n"
"                             downloaded headers.\n"
"\n"
, stdout);
 fputs(
"              size_request   The total amount of bytes that  were\n"
"                             sent in the HTTP request.\n"
"\n"
"              speed_download The average download speed that curl\n"
"                             measured for the complete  download.\n"
"\n"
"              speed_upload   The  average  upload speed that curl\n"
"                             measured for the complete upload.\n"
"\n"
"              content_type   The Content-Type  of  the  requested\n"
, stdout);
 fputs(
"                             document,  if  there was any. (Added\n"
"                             in 7.9.5)\n"
"\n"
"       If this option is used several times, the last one will be\n"
"       used.\n"
"\n"
"       -x/--proxy <proxyhost[:port]>\n"
"              Use specified HTTP proxy. If the port number is not\n"
"              specified, it is assumed at port 1080.\n"
"\n"
"              This option overrides  existing  environment  vari-\n"
"              ables  that  sets proxy to use. If there's an envi-\n"
, stdout);
 fputs(
"              ronment variable setting a proxy, you can set proxy\n"
"              to \"\" to override it.\n"
"\n"
"              Note  that all operations that are performed over a\n"
"              HTTP proxy will transparantly be converted to HTTP.\n"
"              It  means that certain protocol specific operations\n"
"              might not be available. This is not the case if you\n"
"              can  tunnel  through  the  proxy,  as done with the\n"
"              -p/--proxytunnel option.\n"
"\n"
, stdout);
 fputs(
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       -X/--request <command>\n"
"              (HTTP)  Specifies a custom request to use when com-\n"
"              municating with the  HTTP  server.   The  specified\n"
"              request  will  be used instead of the standard GET.\n"
"              Read the HTTP 1.1  specification  for  details  and\n"
"              explanations.\n"
"\n"
"              (FTP) Specifies a custom FTP command to use instead\n"
, stdout);
 fputs(
"              of LIST when doing file lists with ftp.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       -y/--speed-time <time>\n"
"              If  a download is slower than speed-limit bytes per\n"
"              second during a  speed-time  period,  the  download\n"
"              gets  aborted.  If  speed-time is used, the default\n"
"              speed-limit will be 1 unless set with -y.\n"
"\n"
, stdout);
 fputs(
"              This option controls transfers and  thus  will  not\n"
"              affect  slow connects etc. If this is a concern for\n"
"              you, try the --connect-timeout option.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       -Y/--speed-limit <speed>\n"
"              If  a  download is slower than this given speed, in\n"
"              bytes per second, for speed-time  seconds  it  gets\n"
, stdout);
 fputs(
"              aborted. speed-time is set with -Y and is 30 if not\n"
"              set.\n"
"\n"
"              If this option is used several times, the last  one\n"
"              will be used.\n"
"\n"
"       -z/--time-cond <date expression>\n"
"              (HTTP) Request to get a file that has been modified\n"
"              later than the given time and date, or one that has\n"
"              been modified before that time. The date expression\n"
"              can be all sorts of date strings or if  it  doesn't\n"
, stdout);
 fputs(
"              match  any  internal ones, it tries to get the time\n"
"              from a given file name instead! See the GNU date(1)\n"
"              or  curl_getdate(3)  man  pages for date expression\n"
"              details.\n"
"\n"
"              Start the date expression with a dash (-)  to  make\n"
"              it  request  for  a document that is older than the\n"
"              given date/time, default  is  a  document  that  is\n"
"              newer than the specified date/time.\n"
"\n"
, stdout);
 fputs(
"              If  this option is used several times, the last one\n"
"              will be used.\n"
"\n"
"       -Z/--max-redirs <num>\n"
"              Set  maximum   number   of   redirection-followings\n"
"              allowed.  If -L/--location is used, this option can\n"
"              be used to prevent curl from following redirections\n"
"              \"in absurdum\".\n"
"\n"
"              If  this option is used several times, the last one\n"
"              will be used.\n"
"\n"
"       -0/--http1.0\n"
, stdout);
 fputs(
"              (HTTP) Forces curl to issue its requests using HTTP\n"
"              1.0 instead of using its internally preferred: HTTP\n"
"              1.1.\n"
"\n"
"       -1/--tlsv1\n"
"              (HTTPS) Forces curl to use TSL version 1 when nego-\n"
"              tiating with a remote TLS server.\n"
"\n"
"       -2/--sslv2\n"
"              (HTTPS) Forces curl to use SSL version 2 when nego-\n"
"              tiating with a remote SSL server.\n"
"\n"
"       -3/--sslv3\n"
, stdout);
 fputs(
"              (HTTPS) Forces curl to use SSL version 3 when nego-\n"
"              tiating with a remote SSL server.\n"
"\n"
"       -4/--ipv4\n"
"              If  libcurl  is  capable of resolving an address to\n"
"              multiple  IP  versions  (which  it  is  if  it   is\n"
"              ipv6-capable), this option tells libcurl to resolve\n"
"              names to IPv4 addresses only. (Added in 7.10.8)\n"
"\n"
"       -6/--ipv6\n"
"              If libcurl is capable of resolving  an  address  to\n"
, stdout);
 fputs(
"              multiple   IP  versions  (which  it  is  if  it  is\n"
"              ipv6-capable), this option tells libcurl to resolve\n"
"              names to IPv6 addresses only. (Added in 7.10.8)\n"
"\n"
"       -#/--progress-bar\n"
"              Make   curl   display  progress  information  as  a\n"
"              progress bar instead of the default statistics.\n"
"\n"
"              If this option is used twice, the second will again\n"
"              disable the progress bar.\n"
"\n"
"FILES\n"
"       ~/.curlrc\n"
, stdout);
 fputs(
"              Default config file.\n"
"\n"
"ENVIRONMENT\n"
"       http_proxy [protocol://]<host>[:port]\n"
"              Sets proxy server to use for HTTP.\n"
"\n"
"       HTTPS_PROXY [protocol://]<host>[:port]\n"
"              Sets proxy server to use for HTTPS.\n"
"\n"
"       FTP_PROXY [protocol://]<host>[:port]\n"
"              Sets proxy server to use for FTP.\n"
"\n"
"       GOPHER_PROXY [protocol://]<host>[:port]\n"
"              Sets proxy server to use for GOPHER.\n"
"       ALL_PROXY [protocol://]<host>[:port]\n"
, stdout);
 fputs(
"              Sets  proxy  server  to use if no protocol-specific\n"
"              proxy is set.\n"
"\n"
"       NO_PROXY <comma-separated list of hosts>\n"
"              list of host names that shouldn't  go  through  any\n"
"              proxy. If set to a asterisk\n"
"\n"
"EXIT CODES\n"
"       There  exists  a  bunch of different error codes and their\n"
"       corresponding error messages that may  appear  during  bad\n"
"       conditions.  At  the  time of this writing, the exit codes\n"
"       are:\n"
"\n"
, stdout);
 fputs(
"       1      Unsupported protocol. This build  of  curl  has  no\n"
"              support for this protocol.\n"
"\n"
"       2      Failed to initialize.\n"
"\n"
"       3      URL malformat. The syntax was not correct.\n"
"\n"
"       4      URL  user  malformatted.  The  user-part of the URL\n"
"              syntax was not correct.\n"
"\n"
"       5      Couldn't resolve proxy. The given proxy host  could\n"
"              not be resolved.\n"
"\n"
"       6      Couldn't  resolve  host.  The given remote host was\n"
"              not resolved.\n"
, stdout);
 fputs(
"\n"
"       7      Failed to connect to host.\n"
"\n"
"       8      FTP weird server reply. The server sent  data  curl\n"
"              couldn't parse.\n"
"\n"
"       9      FTP access denied. The server denied login.\n"
"\n"
"       10     FTP  user/password  incorrect.  Either  one or both\n"
"              were not accepted by the server.\n"
"\n"
"       11     FTP weird PASS reply. Curl couldn't parse the reply\n"
"              sent to the PASS request.\n"
"\n"
"       12     FTP weird USER reply. Curl couldn't parse the reply\n"
, stdout);
 fputs(
"              sent to the USER request.\n"
"\n"
"       13     FTP weird PASV reply, Curl couldn't parse the reply\n"
"              sent to the PASV request.\n"
"\n"
"       14     FTP  weird  227  format.  Curl  couldn't  parse the\n"
"              227-line the server sent.\n"
"\n"
"       15     FTP can't get host. Couldn't resolve the host IP we\n"
"              got in the 227-line.\n"
"\n"
"       16     FTP  can't  reconnect. Couldn't connect to the host\n"
"              we got in the 227-line.\n"
"\n"
, stdout);
 fputs(
"       17     FTP couldn't set binary. Couldn't  change  transfer\n"
"              method to binary.\n"
"\n"
"       18     Partial  file.  Only  a part of the file was trans-\n"
"              fered.\n"
"\n"
"       19     FTP couldn't download/access the  given  file,  the\n"
"              RETR (or similar) command failed.\n"
"\n"
"       20     FTP  write  error. The transfer was reported bad by\n"
"              the server.\n"
"\n"
"       21     FTP quote error. A  quote  command  returned  error\n"
"\n"
"              from the server.\n"
"\n"
, stdout);
 fputs(
"       22     HTTP  page not retrieved. The requested url was not\n"
"              found or returned another error with the HTTP error\n"
"              code  being  400  or  above.  This return code only\n"
"              appears if --fail is used.\n"
"\n"
"       23     Write error. Curl couldn't write data  to  a  local\n"
"              filesystem or similar.\n"
"\n"
"       24     Malformed user. User name badly specified.\n"
"\n"
"       25     FTP  couldn't STOR file. The server denied the STOR\n"
, stdout);
 fputs(
"              operation, used for FTP uploading.\n"
"\n"
"       26     Read error. Various reading problems.\n"
"\n"
"       27     Out of memory. A memory allocation request  failed.\n"
"       28     Operation  timeout.  The  specified time-out period\n"
"              was reached according to the conditions.\n"
"\n"
"       29     FTP couldn't set  ASCII.  The  server  returned  an\n"
"              unknown reply.\n"
"\n"
"       30     FTP  PORT  failed. The PORT command failed. Not all\n"
, stdout);
 fputs(
"              FTP servers support the PORT command, try  doing  a\n"
"              transfer using PASV instead!\n"
"\n"
"       31     FTP  couldn't  use  REST.  The REST command failed.\n"
"              This command is used for resumed FTP transfers.\n"
"\n"
"       32     FTP couldn't use SIZE. The SIZE command failed. The\n"
"              command  is  an  extension to the original FTP spec\n"
"              RFC 959.\n"
"\n"
"       33