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8 .\" * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
28 curl \- transfer a URL
43 curl is powered by libcurl for all transfer-related features. See
46 The URL syntax is protocol-dependent. You'll find a detailed description in
56   ftp://ftp.example.com/file[1-100].txt
58   ftp://ftp.example.com/file[001-100].txt    (with leading zeros)
60   ftp://ftp.example.com/file[a-z].txt
65   http://example.com/archive[1996-1999]/vol[1-4]/part{a,b,c}.html
74   http://example.com/file[1-100:10].txt
76   http://example.com/file[a-z:2].txt
90 based on often-used host name prefixes. For example, for host names starting
97 curl will attempt to re-use connections for multiple file transfers, so that
115 redirect the response output to a file, using shell redirect (>), \fI-o, --output\fP or
121 If you prefer a progress "bar" instead of the regular meter, \fI-#, --progress-bar\fP is
123 \fI-s, --silent\fP option.
128 The short "single-dash" form of the options, -d for example, may be used with
130 separator. The long "double-dash" form, \fI-d, --data\fP for example, requires a space
135 options -O, -L and -v at once as -OLv.
137 In general, all boolean options are enabled with --\fBoption\fP and yet again
138 disabled with --\fBno-\fPoption. That is, you use the exact same option name
139 but prefix it with "no-". However, in this list we mostly only list and show
140 the --option version of them. (This concept with --no options was added in
143 .IP "--abstract-unix-socket <path>"
149 .IP "--alt-svc <file name>"
152 This option enables the alt-svc parser in curl. If the file name points to an
153 existing alt-svc cache file, that will be used. After a completed transfer,
163 .IP "--anyauth"
166 request and checking the response-headers, thus possibly inducing an extra
167 network round-trip. This is used instead of setting a specific authentication
168 method, which you can do with \fI--basic\fP, \fI--digest\fP, \fI--ntlm\fP, and \fI--negotiate\fP.
170 Using \fI--anyauth\fP is not recommended if you do uploads from stdin, since it may
175 Used together with \fI-u, --user\fP.
177 See also \fI--proxy-anyauth\fP and \fI--basic\fP and \fI--digest\fP.
178 .IP "-a, --append"
182 .IP "--basic"
186 \fI--ntlm\fP, \fI--digest\fP, or \fI--negotiate\fP).
188 Used together with \fI-u, --user\fP.
190 See also \fI--proxy-basic\fP.
191 .IP "--cacert <file>"
202 \'curl-ca-bundle.crt\', either in the same directory as curl.exe, or in the
220 .IP "--capath <dir>"
225 c_rehash utility supplied with OpenSSL. Using \fI--capath\fP can allow
226 OpenSSL-powered curl to make SSL-connections much more efficiently than using
227 \fI--cacert\fP if the --cacert file contains many CA certificates.
231 .IP "--cert-status"
242 .IP "--cert-type <type>"
248 See also \fI-E, --cert\fP and \fI--key\fP and \fI--key-type\fP.
249 .IP "-E, --cert <certificate[:password]>"
251 with HTTPS, FTPS or another SSL-based protocol. The certificate must be in
255 private key and the client certificate concatenated! See \fI-E, --cert\fP and \fI--key\fP to
271 PKCS#11 URI. If a PKCS#11 URI is provided, then the \fI--engine\fP option will be set
272 as "pkcs11" if none was provided and the \fI--cert-type\fP option will be set as
277 system or user keychain, or the path to a PKCS#12-encoded certificate and
287 usually a SHA-1 hex string which you can see in certificate details. Following
294 See also \fI--cert-type\fP and \fI--key\fP and \fI--key-type\fP.
295 .IP "--ciphers <list of ciphers>"
299  https://curl.haxx.se/docs/ssl-ciphers.html
302 .IP "--compressed-ssh"
303 (SCP SFTP) Enables built-in SSH compression.
307 .IP "--compressed"
311 .IP "-K, --config <file>"
319 optionally be given in the config file without the initial double dashes and
327 letter is ignored. If the first column of a config line is a '#' character,
329 physical line in the config file.
331 Specify the filename to \fI-K, --config\fP as '-' to make curl read the file from stdin.
333 Note that to be able to specify a URL in the config file, you need to specify
334 it using the \fI--url\fP option, and not by simply writing the URL on its own
339 When curl is invoked, it (unless \fI-q, --disable\fP is used) checks for a default
340 config file and uses it if found. The default config file is checked for in
345 Unix-like systems (which returns the home dir given the current user in your
350 in the same dir the curl executable is placed. On Unix-like systems, it will
354 # --- Example file ---
358 user-agent = "superagent/1.0"
364 # --- End of example file ---
367 This option can be used multiple times to load multiple config files.
368 .IP "--connect-timeout <seconds>"
371 will continue - if not it will exit.  Since version 7.32.0, this option
376 See also \fI-m, --max-time\fP.
377 .IP "--connect-to <HOST1:PORT1:HOST2:PORT2>"
394 See also \fI--resolve\fP and \fI-H, --header\fP. Added in 7.49.0.
395 .IP "-C, --continue-at <offset>"
401 Use "-C -" to tell curl to automatically find out where/how to resume the
406 See also \fI-r, --range\fP.
407 .IP "-c, --cookie-jar <filename>"
409 operation. Curl writes all cookies from its in-memory cookie storage to the
412 you set the file name to a single dash, "-", the cookies will be written to
416 record and use cookies. Another way to activate it is to use the \fI-b, --cookie\fP
420 won't fail or even report an error clearly. Using \fI-v, --verbose\fP will get a warning
426 .IP "-b, --cookie <data|filename>"
428 the data previously received from the server in a "Set-Cookie:" line.  The
434 you're using this in combination with the \fI-L, --location\fP option or do multiple URL
435 transfers on the same invoke. If the file name is exactly a minus ("-"), curl
439 (Set-Cookie style) or the Netscape/Mozilla cookie file format.
441 The file specified with \fI-b, --cookie\fP is only used as input. No cookies will be
442 written to the file. To store cookies, use the \fI-c, --cookie-jar\fP option.
445 occur.  If you use the NAME1=VALUE1; format, or in a file use the Set-Cookie
447 (even after redirects are followed) and cannot be modified by a server-set
450 what you intended.  To address these issues set a domain in Set-Cookie (doing
456 cookies back to a file, so using both \fI-b, --cookie\fP and \fI-c, --cookie-jar\fP in the same
458 .IP "--create-dirs"
459 When used in conjunction with the \fI-o, --output\fP option, curl will create the
461 mentioned with the \fI-o, --output\fP option, nothing else. If the --output file name
464 To create remote directories when using FTP or SFTP, try \fI--ftp-create-dirs\fP.
465 .IP "--crlf"
469 .IP "--crlfile <file>"
476 .IP "--data-ascii <data>"
477 (HTTP) This is just an alias for \fI-d, --data\fP.
478 .IP "--data-binary <data>"
482 is posted in a similar manner as \fI-d, --data\fP does, except that newlines and
485 Like \fI-d, --data\fP the default content-type sent to the server is
486 application/x-www-form-urlencoded. If you want the data to be treated as
487 arbitrary binary data by the server then set the content-type to octet-stream:
488 -H "Content-Type: application/octet-stream".
491 data as described in \fI-d, --data\fP.
492 .IP "--data-raw <data>"
493 (HTTP) This posts data similarly to \fI-d, --data\fP but without the special
496 See also \fI-d, --data\fP. Added in 7.43.0.
497 .IP "--data-urlencode <data>"
498 (HTTP) This posts data, similar to the other \fI-d, --data\fP options with the exception
499 that this performs URL-encoding.
501 To be CGI-compliant, the <data> part should begin with a \fIname\fP followed
506 This will make curl URL-encode the content and pass that on. Just be careful
510 This will make curl URL-encode the content and pass that on. The preceding =
513 This will make curl URL-encode the content part and pass that on. Note that
514 the name part is expected to be URL-encoded already.
517 URL-encode that data and pass it on in the POST.
520 URL-encode that data and pass it on in the POST. The name part gets an equal
521 sign appended, resulting in \fIname=urlencoded-file-content\fP. Note that the
522 name is expected to be URL-encoded already.
525 See also \fI-d, --data\fP and \fI--data-raw\fP. Added in 7.18.0.
526 .IP "-d, --data <data>"
530 content-type application/x-www-form-urlencoded.  Compare to \fI-F, --form\fP.
532 \fI--data-raw\fP is almost the same but does not have a special interpretation of
534 \fI--data-binary\fP option.  To URL-encode the value of a form field you may use
535 \fI--data-urlencode\fP.
539 &-symbol. Thus, using '-d name=daniel -d skill=lousy' would generate a post
543 read the data from, or - if you want curl to read the data from
545 'foobar' would thus be done with \fI-d, --data\fP @foobar. When --data is told to read
547 you don't want the @ character to have a special interpretation use \fI--data-raw\fP
550 …\fI--data-binary\fP and \fI--data-urlencode\fP and \fI--data-raw\fP. This option overrides \fI-F, …
551 .IP "--delegation <LEVEL>"
558 Delegates if and only if the OK-AS-DELEGATE flag is set in the Kerberos
559 service ticket, which is a matter of realm policy.
563 .IP "--digest"
566 combination with the normal \fI-u, --user\fP option to set user name and password.
570 See also \fI-u, --user\fP and \fI--proxy-digest\fP and \fI--anyauth\fP. This option overrides \fI--…
571 .IP "--disable-eprt"
579 --eprt can be used to explicitly enable EPRT again and --no-eprt is an alias
580 for \fI--disable-eprt\fP.
586 passive mode you need to not use \fI-P, --ftp-port\fP or force it with \fI--ftp-pasv\fP.
587 .IP "--disable-epsv"
592 --epsv can be used to explicitly enable EPSV again and --no-epsv is an alias
593 for \fI--disable-epsv\fP.
599 active mode you need to use \fI-P, --ftp-port\fP.
600 .IP "-q, --disable"
601 If used as the first parameter on the command line, the \fIcurlrc\fP config
602 file will not be read and used. See the \fI-K, --config\fP for details on the default
603 config file search path.
604 .IP "--disallow-username-in-url"
607 See also \fI--proto\fP. Added in 7.61.0.
608 .IP "--dns-interface <interface>"
610 counterpart to \fI--interface\fP (which does not affect DNS). The supplied string
613 See also \fI--dns-ipv4-addr\fP and \fI--dns-ipv6-addr\fP. \fI--dns-interface\fP requires that the u…
614 .IP "--dns-ipv4-addr <address>"
615 (DNS) Tell curl to bind to <ip-address> when making IPv4 DNS requests, so that
617 single IPv4 address.
619 See also \fI--dns-interface\fP and \fI--dns-ipv6-addr\fP. \fI--dns-ipv4-addr\fP requires that the u…
620 .IP "--dns-ipv6-addr <address>"
621 (DNS) Tell curl to bind to <ip-address> when making IPv6 DNS requests, so that
625 See also \fI--dns-interface\fP and \fI--dns-ipv4-addr\fP. \fI--dns-ipv6-addr\fP requires that the u…
626 .IP "--dns-servers <addresses>"
629 may also optionally be given as \fI:<port-number>\fP after each IP
632 \fI--dns-servers\fP requires that the underlying libcurl was built to support c-ares. Added in 7.33…
633 .IP "--doh-url <URL>"
634 (all) Specifies which DNS-over-HTTPS (DOH) server to use to resolve hostnames,
638 .IP "-D, --dump-header <filename>"
643 curl invocation by using the \fI-b, --cookie\fP option! The \fI-c, --cookie-jar\fP option is a
651 See also \fI-o, --output\fP.
652 .IP "--egd-file <file>"
656 See also \fI--random-file\fP.
657 .IP "--engine <name>"
658 (TLS) Select the OpenSSL crypto engine to use for cipher operations. Use \fI--engine\fP
659 list to print a list of build-time supported engines. Note that not all (or
660 none) of the engines may be available at run-time.
661 .IP "--expect100-timeout <seconds>"
662 (HTTP) Maximum time in seconds that you allow curl to wait for a 100-continue
663 response when curl emits an Expects: 100-continue header in its request. By
667 See also \fI--connect-timeout\fP. Added in 7.47.0.
668 .IP "--fail-early"
681 This option is global and does not need to be specified for each use of \fI-:, --next\fP.
683 This option does not imply \fI-f, --fail\fP, which causes transfers to fail due to the
684 server's HTTP status code. You can combine the two options, however note \fI-f, --fail\fP
685 is not global and is therefore contained by \fI-:, --next\fP.
688 .IP "-f, --fail"
695 This method is not fail-safe and there are occasions where non-successful
698 .IP "--false-start"
708 .IP "--form-string <name=string>"
709 (HTTP SMTP IMAP) Similar to \fI-F, --form\fP except that the value string for the named parameter i…
711 the value have no special meaning. Use this in preference to \fI-F, --form\fP if
713 \&'@' or \&'<' features of \fI-F, --form\fP.
715 See also \fI-F, --form\fP.
716 .IP "-F, --form <name=content>"
717 (HTTP SMTP IMAP) For HTTP protocol family, this lets curl emulate a filled-in form in which a
719 Content-Type multipart/form-data according to RFC 2388.
731 Tell curl to read content from stdin instead of a file by using - as
734 possible resend.  Defining a part's data from a named non-regular file (such
741 form-field to which the file portrait.jpg will be the input:
743  curl -F profile=@portrait.jpg https://example.com/upload.cgi
747  curl -F name=John -F shoesize=11 https://example.com/
752  curl -F "story=<hugefile.txt" https://example.com/
754 You can also tell curl what Content-Type to use by using 'type=', in a manner
757  curl -F "web=@index.html;type=text/html" example.com
761  curl -F "name=daniel;type=text/foo" example.com
766  curl -F "file=@localfile;filename=nameinpost" example.com
768 If filename/path contains ',' or ';', it must be quoted by double-quotes like:
770  curl -F "file=@\\"localfile\\";filename=\\"nameinpost\\"" example.com
774  curl -F 'file=@"localfile";filename="nameinpost"' example.com
776 Note that if a filename/path is quoted by double-quotes, any double-quote
779 Quoting must also be applied to non-file data if it contains semicolons,
782  curl -F 'colors="red; green; blue";type=text/x-myapp' example.com
786   curl -F "submit=OK;headers=\\"X-submit-type: OK\\"" example.com
790   curl -F "submit=OK;headers=@headerfile" example.com
796 carriage-returns and trailing spaces are stripped.
801   X-header-1: this is a header
805   X-header-2: this is
812 - name can be omitted: the equal sign is the first character of the argument,
814 - if data starts with '(', this signals to start a new multipart: it can be
817 - a multipart can be terminated with a '=)' argument.
819 Example: the following command sends an SMTP mime e-mail consisting in an
823  curl -F '=(;type=multipart/alternative' \\
825          -F '=plain text message' \\
827          -F '= <body>HTML message</body>;type=text/html' \\
829       -F '=)' -F '=@textfile.txt' ...  smtp://example.com
833 Content-Transfer-Encoding header, \fI7bit\fP that only rejects 8-bit characters
834 with a transfer error, \fIquoted-printable\fP and \fIbase64\fP that encodes
838 Example: send multipart mail with a quoted-printable text message and a
841  curl -F '=text message;encoder=quoted-printable' \\
843       -F '=@localfile;encoder=base64' ... smtp://example.com
849 This option overrides \fI-d, --data\fP and \fI-I, --head\fP and \fI-T, --upload-file\fP.
850 .IP "--ftp-account <data>"
857 .IP "--ftp-alternative-to-user <command>"
864 .IP "--ftp-create-dirs"
869 See also \fI--create-dirs\fP.
870 .IP "--ftp-method <method>"
888 .IP "--ftp-pasv"
890 behavior, but using this option can be used to override a previous \fI-P, --ftp-port\fP
895 correct \fI-P, --ftp-port\fP again.
898 unless \fI--disable-epsv\fP is used.
900 See also \fI--disable-epsv\fP. Added in 7.11.0.
901 .IP "-P, --ftp-port <address>"
914 .IP "-"
920 use of PORT with \fI--ftp-pasv\fP. Disable the attempt to use the EPRT command
921 instead of PORT by using \fI--disable-eprt\fP. EPRT is really PORT++.
923 Since 7.19.5, you can append \&":[start]-[end]\&" to the right of the address,
928 See also \fI--ftp-pasv\fP and \fI--disable-eprt\fP.
929 .IP "--ftp-pret"
931 mainly drftpd, require this non-standard command for directory listings as
935 .IP "--ftp-skip-pasv-ip"
938 will re-use the same IP address it already uses for the control
943 See also \fI--ftp-pasv\fP. Added in 7.14.2.
944 .IP "--ftp-ssl-ccc-mode <active/passive>"
950 See also \fI--ftp-ssl-ccc\fP. Added in 7.16.2.
951 .IP "--ftp-ssl-ccc"
957 See also \fI--ssl\fP and \fI--ftp-ssl-ccc-mode\fP. Added in 7.16.1.
958 .IP "--ftp-ssl-control"
960 authentication, but non-encrypted data transfers for efficiency.  Fails the
964 .IP "-G, --get"
965 When used, this option will make all data specified with \fI-d, --data\fP, \fI--data-binary\fP
966 or \fI--data-urlencode\fP to be used in an HTTP GET request instead of the POST
970 If used in combination with \fI-I, --head\fP, the POST data will instead be appended to
976 .IP "-g, --globoff"
981 .IP "--happy-eyeballs-timeout-ms <milliseconds>"
982 Happy eyeballs is an algorithm that attempts to connect to both IPv4 and IPv6
983 addresses for dual-stack hosts, preferring IPv6 first for the number of
985 a connection attempt is made to the IPv4 address in parallel. The first
989 "It is RECOMMENDED that connection attempts be paced 150-250 ms apart to
996 .IP "--haproxy-protocol"
1001 This option is primarily useful when sending test requests to a service that
1005 .IP "-I, --head"
1006 (HTTP FTP FILE) Fetch the headers only! HTTP-servers feature the command HEAD which this uses
1009 .IP "-H, --header <header/@file>"
1017 the right side of the colon, as in: -H \&"Host:". If you send the custom
1018 header with no-value then its header must be terminated with a semicolon, such
1019 as \-H \&"X-Custom-Header;" to send "X-Custom-Header:".
1022 end-of-line marker, you should thus \fBnot\fP add that as a part of the header
1027 then adds a header for each line in the input file. Using @- will make curl
1030 See also the \fI-A, --user-agent\fP and \fI-e, --referer\fP options.
1032 Starting in 7.37.0, you need \fI--proxy-header\fP to send custom headers intended
1037  curl -H "X-First-Name: Joe" http://example.com/
1039 \fBWARNING\fP: headers set with this option will be set in all requests - even
1040 after redirects are followed, like when told with \fI-L, --location\fP. This can lead to
1045 .IP "-h, --help"
1048 .IP "--hostpubmd5 <md5>"
1054 .IP "--http0.9"
1058 connect with this to non-HTTP servers and still get a response since curl will
1059 simply transparently downgrade - if allowed.
1063 .IP "-0, --http1.0"
1067 This option overrides \fI--http1.1\fP and \fI--http2\fP.
1068 .IP "--http1.1"
1071 This option overrides \fI-0, --http1.0\fP and \fI--http2\fP. Added in 7.33.0.
1072 .IP "--http2-prior-knowledge"
1073 (HTTP) Tells curl to issue its non-TLS HTTP requests using HTTP/2 without HTTP/1.1
1078 …--http2-prior-knowledge\fP requires that the underlying libcurl was built to support HTTP/2. This …
1079 .IP "--http2"
1082 …--no-alpn\fP. \fI--http2\fP requires that the underlying libcurl was built to support HTTP/2. This…
1083 .IP "--ignore-content-length"
1084 (FTP HTTP) For HTTP, Ignore the Content-Length header. This is particularly useful for
1085 servers running Apache 1.x, which will report incorrect Content-Length for
1090 .IP "-i, --include"
1095 To view the request headers, consider the \fI-v, --verbose\fP option.
1097 See also \fI-v, --verbose\fP.
1098 .IP "-k, --insecure"
1110 See also \fI--proxy-insecure\fP and \fI--cacert\fP.
1111 .IP "--interface <name>"
1116  curl --interface eth0:1 https://www.example.com/
1124 See also \fI--dns-interface\fP.
1125 .IP "-4, --ipv4"
1126 This option tells curl to resolve names to IPv4 addresses only, and not for
1129 See also \fI--http1.1\fP and \fI--http2\fP. This option overrides \fI-6, --ipv6\fP.
1130 .IP "-6, --ipv6"
1132 example try IPv4.
1134 See also \fI--http1.1\fP and \fI--http2\fP. This option overrides \fI-4, --ipv4\fP.
1135 .IP "-j, --junk-session-cookies"
1141 See also \fI-b, --cookie\fP and \fI-c, --cookie-jar\fP.
1142 .IP "--keepalive-time <seconds>"
1146 TCP_KEEPINTVL socket options (meaning Linux, recent AIX, HP-UX and more). This
1147 option has no effect if \fI--no-keepalive\fP is used.
1153 .IP "--key-type <type>"
1154 (TLS) Private key file type. Specify which type your \fI--key\fP provided private key
1158 .IP "--key <key>"
1166 PKCS#11 URI. If a PKCS#11 URI is provided, then the \fI--engine\fP option will be set
1167 as "pkcs11" if none was provided and the \fI--key-type\fP option will be set as
1171 .IP "--krb <level>"
1178 \fI--krb\fP requires that the underlying libcurl was built to support Kerberos.
1179 .IP "--libcurl <file>"
1181 libcurl-using C source code written to the file that does the equivalent
1182 of what your command-line operation does!
1188 .IP "--limit-rate <speed>"
1189 Specify the maximum transfer rate you want curl to use - for both downloads
1198 If you also use the \fI-Y, --speed-limit\fP option, that option will take precedence and
1199 might cripple the rate-limiting slightly, to help keeping the speed-limit
1203 .IP "-l, --list-only"
1205 When listing an FTP directory, this switch forces a name-only view. This is
1206 especially useful if the user wants to machine-parse the contents of an FTP
1212 include sub-directories and symbolic links.
1219 Note: When combined with \fI-X, --request\fP, this option can be used to send an UIDL
1224 .IP "--local-port <num/range>"
1225 Set a preferred single number or range (FROM-TO) of local port numbers to use
1231 .IP "--location-trusted"
1232 (HTTP) Like \fI-L, --location\fP, but will allow sending the name + password to all hosts that
1237 See also \fI-u, --user\fP.
1238 .IP "-L, --location"
1242 \fI-i, --include\fP or \fI-I, --head\fP, headers from all requested pages will be shown. When
1245 intercept the user+password. See also \fI--location-trusted\fP on how to change
1247 \fI--max-redirs\fP option.
1252 re-send the following request using the same unmodified method.
1254 You can tell curl to not change the non-GET request method to GET after a 30x
1255 response by using the dedicated options for that: \fI--post301\fP, \fI--post302\fP and
1256 \fI--post303\fP.
1257 .IP "--login-options <options>"
1263 RFC 2384, RFC 5092 and IETF draft draft-earhart-url-smtp-00.txt
1268 .IP "--mail-auth <address>"
1273 See also \fI--mail-rcpt\fP and \fI--mail-from\fP. Added in 7.25.0.
1274 .IP "--mail-from <address>"
1277 See also \fI--mail-rcpt\fP and \fI--mail-auth\fP. Added in 7.20.0.
1278 .IP "--mail-rcpt <address>"
1290 specified using the mailing list name, such as "Friends" or "London-Office".
1294 .IP "-M, --manual"
1296 .IP "--max-filesize <bytes>"
1309 See also \fI--limit-rate\fP.
1310 .IP "--max-redirs <num>"
1311 (HTTP) Set maximum number of redirection-followings allowed. When \fI-L, --location\fP is used,
1313 limit is set to 50 redirections. Set this option to -1 to make it unlimited.
1316 .IP "-m, --max-time <seconds>"
1325 See also \fI--connect-timeout\fP.
1326 .IP "--metalink"
1336  curl --metalink http://www.example.com/example.metalink
1340  curl --metalink file://example.metalink
1343 Metalink file at the time of this writing. Also note that if \fI--metalink\fP and
1344 \fI-i, --include\fP are used together, --include will be ignored. This is because
1349 \fI--metalink\fP requires that the underlying libcurl was built to support metalink. Added in 7.27.…
1350 .IP "--negotiate"
1353 This option requires a library built with GSS-API or SSPI support. Use
1354 \fI-V, --version\fP to see if your curl supports GSS-API/SSPI or SPNEGO.
1356 When using this option, you must also provide a fake \fI-u, --user\fP option to activate
1357 the authentication code properly. Sending a '-u :' is enough as the user name
1358 and password from the \fI-u, --user\fP option aren't actually used.
1362 See also \fI--basic\fP and \fI--ntlm\fP and \fI--anyauth\fP and \fI--proxy-negotiate\fP.
1363 .IP "--netrc-file <filename>"
1364 This option is similar to \fI-n, --netrc\fP, except that you provide the path (absolute
1366 netrc file per invocation. If several \fI--netrc-file\fP options are provided,
1369 It will abide by \fI--netrc-optional\fP if specified.
1371 This option overrides \fI-n, --netrc\fP. Added in 7.21.5.
1372 .IP "--netrc-optional"
1373 Very similar to \fI-n, --netrc\fP, but this option makes the .netrc usage \fBoptional\fP
1374 and not mandatory as the \fI-n, --netrc\fP option does.
1376 See also \fI--netrc-file\fP. This option overrides \fI-n, --netrc\fP.
1377 .IP "-n, --netrc"
1383 either world- or group-readable). The environment variable "HOME" is used to
1386 A quick and very simple example of how to setup a \fI.netrc\fP to allow curl
1391 .IP "-:, --next"
1397 \fI-:, --next\fP will reset all local options and only global ones will have their
1398 values survive over to the operation following the \fI-:, --next\fP instruction. Global
1399 options include \fI-v, --verbose\fP, \fI--trace\fP, \fI--trace-ascii\fP and \fI--fail-early\fP.
1403  curl www1.example.com --next -d postthis www2.example.com
1406 .IP "--no-alpn"
1411 See also \fI--no-npn\fP and \fI--http2\fP. \fI--no-alpn\fP requires that the underlying libcurl was…
1412 .IP "-N, --no-buffer"
1419 --buffer to enforce the buffering.
1420 .IP "--no-keepalive"
1425 --keepalive to enforce keepalive.
1426 .IP "--no-npn"
1431 See also \fI--no-alpn\fP and \fI--http2\fP. \fI--no-npn\fP requires that the underlying libcurl was…
1432 .IP "--no-sessionid"
1433 (TLS) Disable curl's use of SSL session-ID caching.  By default all transfers are
1435 attempting to reuse SSL session-IDs, there seem to be broken SSL
1440 --sessionid to enforce session-ID caching.
1443 .IP "--noproxy <no-proxy-list>"
1444 Comma-separated list of hosts which do not use a proxy, if one is specified.
1456 .IP "--ntlm-wb"
1457 (HTTP) Enables NTLM much in the style \fI--ntlm\fP does, but hand over the authentication
1460 See also \fI--ntlm\fP and \fI--proxy-ntlm\fP.
1461 .IP "--ntlm"
1464 reverse-engineered by clever people and implemented in curl based on their
1470 \fI--proxy-ntlm\fP.
1474 …--proxy-ntlm\fP. \fI--ntlm\fP requires that the underlying libcurl was built to support TLS. This …
1475 .IP "--oauth2-bearer <token>"
1478 the \fI--url\fP or \fI-u, --user\fP options.
1483 .IP "-o, --output <file>"
1489  curl http://{one,two}.example.com -o "file_#1.txt"
1493  curl http://{site,host}.host[1-5].com -o "#1_#2"
1499   curl -o aa example.com -o bb example.net
1501 and the order of the -o options and the URLs doesn't matter, just that the
1502 first -o is for the first URL and so on, so the above command line can also be
1505   curl example.com example.net -o aa -o bb
1507 See also the \fI--create-dirs\fP option to create the local directories
1508 dynamically. Specifying the output as '-' (a single dash) will force the
1511 See also \fI-O, --remote-name\fP and \fI--remote-name-all\fP and \fI-J, --remote-header-name\fP.
1512 .IP "--pass <phrase>"
1516 .IP "--path-as-is"
1522 .IP "--pinnedpubkey <hashes>"
1545 .IP "--post301"
1547 requests when following a 301 redirection. The non-RFC behaviour is ubiquitous
1550 a redirection. This option is meaningful only when using \fI-L, --location\fP.
1552 See also \fI--post302\fP and \fI--post303\fP and \fI-L, --location\fP. Added in 7.17.1.
1553 .IP "--post302"
1555 requests when following a 302 redirection. The non-RFC behaviour is ubiquitous
1558 a redirection. This option is meaningful only when using \fI-L, --location\fP.
1560 See also \fI--post301\fP and \fI--post303\fP and \fI-L, --location\fP. Added in 7.19.1.
1561 .IP "--post303"
1565 using \fI-L, --location\fP.
1567 See also \fI--post302\fP and \fI--post301\fP and \fI-L, --location\fP. Added in 7.26.0.
1568 .IP "--preproxy [protocol://]host[:port]"
1569 Use the specified SOCKS proxy before connecting to an HTTP or HTTPS \fI-x, --proxy\fP. In
1588 .IP "-#, --progress-bar"
1589 Make curl display transfer progress as a simple progress bar instead of the
1594 known size, there will be space ship (-=o=-) that moves back and forth but
1597 .IP "--proto-default <protocol>"
1602  curl --proto-default https ftp.mozilla.org
1609 Without this option curl would make a guess based on the host, see \fI--url\fP for
1613 .IP "--proto-redir <protocols>"
1615 \fI--proto\fP are not overridden by this option. See --proto for how protocols are
1620  curl --proto-redir -all,http,https http://example.com
1628 .IP "--proto <protocols>"
1638 .B -
1650 .B \fI--proto\fP -ftps
1653 .B  \fI--proto\fP -all,https,+http
1656 .B \fI--proto\fP =http,https
1667 See also \fI--proto-redir\fP and \fI--proto-default\fP. Added in 7.20.2.
1668 .IP "--proxy-anyauth"
1670 the given HTTP proxy. This might cause an extra request/response round-trip.
1672 See also \fI-x, --proxy\fP and \fI--proxy-basic\fP and \fI--proxy-digest\fP. Added in 7.13.2.
1673 .IP "--proxy-basic"
1675 proxy. Use \fI--basic\fP for enabling HTTP Basic with a remote host. Basic is the
1678 See also \fI-x, --proxy\fP and \fI--proxy-anyauth\fP and \fI--proxy-digest\fP.
1679 .IP "--proxy-cacert <file>"
1680 Same as \fI--cacert\fP but used in HTTPS proxy context.
1682 See also \fI--proxy-capath\fP and \fI--cacert\fP and \fI--capath\fP and \fI-x, --proxy\fP. Added in…
1683 .IP "--proxy-capath <dir>"
1684 Same as \fI--capath\fP but used in HTTPS proxy context.
1686 See also \fI--proxy-cacert\fP and \fI-x, --proxy\fP and \fI--capath\fP. Added in 7.52.0.
1687 .IP "--proxy-cert-type <type>"
1688 Same as \fI--cert-type\fP but used in HTTPS proxy context.
1691 .IP "--proxy-cert <cert[:passwd]>"
1692 Same as \fI-E, --cert\fP but used in HTTPS proxy context.
1695 .IP "--proxy-ciphers <list>"
1696 Same as \fI--ciphers\fP but used in HTTPS proxy context.
1699 .IP "--proxy-crlfile <file>"
1700 Same as \fI--crlfile\fP but used in HTTPS proxy context.
1703 .IP "--proxy-digest"
1705 proxy. Use \fI--digest\fP for enabling HTTP Digest with a remote host.
1707 See also \fI-x, --proxy\fP and \fI--proxy-anyauth\fP and \fI--proxy-basic\fP.
1708 .IP "--proxy-header <header/@file>"
1710 specify any number of extra headers. This is the equivalent option to \fI-H, --header\fP
1715 end-of-line marker, you should thus \fBnot\fP add that as a part of the header
1723 then adds a header for each line in the input file. Using @- will make curl
1729 .IP "--proxy-insecure"
1730 Same as \fI-k, --insecure\fP but used in HTTPS proxy context.
1733 .IP "--proxy-key-type <type>"
1734 Same as \fI--key-type\fP but used in HTTPS proxy context.
1737 .IP "--proxy-key <key>"
1738 Same as \fI--key\fP but used in HTTPS proxy context.
1739 .IP "--proxy-negotiate"
1741 with the given proxy. Use \fI--negotiate\fP for enabling HTTP Negotiate (SPNEGO)
1744 See also \fI--proxy-anyauth\fP and \fI--proxy-basic\fP. Added in 7.17.1.
1745 .IP "--proxy-ntlm"
1747 proxy. Use \fI--ntlm\fP for enabling NTLM with a remote host.
1749 See also \fI--proxy-negotiate\fP and \fI--proxy-anyauth\fP.
1750 .IP "--proxy-pass <phrase>"
1751 Same as \fI--pass\fP but used in HTTPS proxy context.
1754 .IP "--proxy-pinnedpubkey <hashes>"
1766 .IP "--proxy-service-name <name>"
1767 This option allows you to change the service name for proxy negotiation.
1770 .IP "--proxy-ssl-allow-beast"
1771 Same as \fI--ssl-allow-beast\fP but used in HTTPS proxy context.
1774 .IP "--proxy-tls13-ciphers <ciphersuite list>"
1779  https://curl.haxx.se/docs/ssl-ciphers.html
1782 .IP "--proxy-tlsauthtype <type>"
1783 Same as \fI--tlsauthtype\fP but used in HTTPS proxy context.
1786 .IP "--proxy-tlspassword <string>"
1787 Same as \fI--tlspassword\fP but used in HTTPS proxy context.
1790 .IP "--proxy-tlsuser <name>"
1791 Same as \fI--tlsuser\fP but used in HTTPS proxy context.
1794 .IP "--proxy-tlsv1"
1795 Same as \fI-1, --tlsv1\fP but used in HTTPS proxy context.
1798 .IP "-U, --proxy-user <user:password>"
1801 If you use a Windows SSPI-enabled curl binary and do either Negotiate or NTLM
1803 from your environment by specifying a single colon with this option: "-U :".
1812 .IP "-x, --proxy [protocol://]host[:port]"
1836 one with the \fI-p, --proxytunnel\fP option.
1847 .IP "--proxy1.0 <host[:port]>"
1851 The only difference between this and the HTTP proxy option \fI-x, --proxy\fP, is that
1854 .IP "-p, --proxytunnel"
1855 When an HTTP proxy is used \fI-x, --proxy\fP, this option will make curl tunnel through
1861 use \fI--suppress-connect-headers\fP.
1863 See also \fI-x, --proxy\fP.
1864 .IP "--pubkey <key>"
1874 .IP "-Q, --quote"
1879 transfer, prefix them with a dash '-'.  To make commands be sent after curl
1894 shell-style to embed spaces or special characters.  Following is the list of
1926 .IP "--random-file <file>"
1929 also the \fI--egd-file\fP option.
1930 .IP "-r, --range <range>"
1935 .B 0-499
1938 .B 500-999
1941 .B -500
1944 .B 9500-
1947 .B 0-0,-1
1950 .B 100-199,500-599
1951 specifies two separate 100-byte ranges(*) (HTTP)
1957 Only digit characters (0-9) are valid in the 'start' and 'stop' fields of the
1958 \&'start-stop' range syntax. If a non-digit character is given in the range,
1966 FTP and SFTP range downloads only support the simple 'start-stop' syntax
1971 .IP "--raw"
1976 .IP "-e, --referer <URL>"
1978 with the \fI-H, --header\fP flag of course.  When used with \fI-L, --location\fP you can append
1979 ";auto" to the \fI-e, --referer\fP URL to make curl automatically set the previous URL
1981 even if you don't set an initial \fI-e, --referer\fP.
1985 See also \fI-A, --user-agent\fP and \fI-H, --header\fP.
1986 .IP "-J, --remote-header-name"
1987 (HTTP) This option tells the \fI-O, --remote-name\fP option to use the server-specified
1988 Content-Disposition filename instead of extracting a filename from the URL.
1995 There's no attempt to decode %-sequences (yet) in the provided file name, so
2001 .IP "--remote-name-all"
2003 if \fI-O, --remote-name\fP were used for each one. So if you want to disable that for a
2004 specific URL after \fI--remote-name-all\fP has been used, you must use "-o -" or
2005 --no-remote-name.
2008 .IP "-O, --remote-name"
2018 server to be able to choose the file name refer to \fI-J, --remote-header-name\fP which
2023 encoded parts of the name, they will end up as-is as file name.
2026 .IP "-R, --remote-time"
2030 .IP "--request-target"
2037 .IP "-X, --request <command>"
2050 request, using -X HEAD will not suffice. You need to use the \fI-I, --head\fP option.
2052 The method string you set with \fI-X, --request\fP will be used for all requests, which
2053 if you for example use \fI-L, --location\fP may cause unintended side-effects when curl
2054 doesn't change request method according to the HTTP 30x response codes - and
2072 .IP "--resolve <host:port:address[,address]...>"
2082 port pair to the specified address. Wildcard is resolved last so any \fI--resolve\fP
2085 The provided address set by this option will be used even if \fI-4, --ipv4\fP or \fI-6, --ipv6\fP
2097 .IP "--retry-connrefused"
2099 error too for \fI--retry\fP. This option is used together with --retry.
2102 .IP "--retry-delay <seconds>"
2105 between retries). This option is only interesting if \fI--retry\fP is also
2111 .IP "--retry-max-time <seconds>"
2113 done as usual (see \fI--retry\fP) as long as the timer hasn't reached this given
2116 limit a single request\'s maximum time, use \fI-m, --max-time\fP.  Set this option to
2122 .IP "--retry <num>"
2131 using \fI--retry-delay\fP you disable this exponential backoff algorithm. See also
2132 \fI--retry-max-time\fP to limit the total time allowed for retries.
2137 .IP "--sasl-ir"
2141 .IP "--service-name <name>"
2142 This option allows you to change the service name for SPNEGO.
2144 Examples: \fI--negotiate\fP \fI--service-name\fP sockd would use sockd/server-name.
2147 .IP "-S, --show-error"
2148 When used with \fI-s, --silent\fP, it makes curl show an error message if it fails.
2149 .IP "-s, --silent"
2154 Use \fI-S, --show-error\fP in addition to this option to disable progress meter but
2157 See also \fI-v, --verbose\fP and \fI--stderr\fP.
2158 .IP "--socks4 <host[:port]>"
2162 This option overrides any previous use of \fI-x, --proxy\fP, as they are mutually
2166 with \fI-x, --proxy\fP using a socks4:// protocol prefix.
2168 Since 7.52.0, \fI--preproxy\fP can be used to specify a SOCKS proxy at the same time
2169 \fI-x, --proxy\fP is used with an HTTP/HTTPS proxy. In such a case curl first connects to
2175 .IP "--socks4a <host[:port]>"
2179 This option overrides any previous use of \fI-x, --proxy\fP, as they are mutually
2183 with \fI-x, --proxy\fP using a socks4a:// protocol prefix.
2185 Since 7.52.0, \fI--preproxy\fP can be used to specify a SOCKS proxy at the same time
2186 \fI-x, --proxy\fP is used with an HTTP/HTTPS proxy. In such a case curl first connects to
2192 .IP "--socks5-basic"
2195 \fI--socks5-gssapi\fP to force GSS-API authentication to SOCKS5 proxies.
2198 .IP "--socks5-gssapi-nec"
2199 As part of the GSS-API negotiation a protection mode is negotiated. RFC 1961
2201 implementation does not.  The option \fI--socks5-gssapi-nec\fP allows the
2205 .IP "--socks5-gssapi-service <name>"
2206 The default service name for a socks server is rcmd/server-fqdn. This option
2209 Examples: \fI--socks5\fP proxy-name \fI--socks5-gssapi-service\fP sockd would use
2210 sockd/proxy-name \fI--socks5\fP proxy-name \fI--socks5-gssapi-service\fP sockd/real-name
2211 would use sockd/real-name for cases where the proxy-name does not match the
2215 .IP "--socks5-gssapi"
2216 Tells curl to use GSS-API authentication when connecting to a SOCKS5 proxy.
2217 The GSS-API authentication is enabled by default (if curl is compiled with
2218 GSS-API support).  Use \fI--socks5-basic\fP to force username/password authentication
2222 .IP "--socks5-hostname <host[:port]>"
2226 This option overrides any previous use of \fI-x, --proxy\fP, as they are mutually
2230 hostname proxy with \fI-x, --proxy\fP using a socks5h:// protocol prefix.
2232 Since 7.52.0, \fI--preproxy\fP can be used to specify a SOCKS proxy at the same time
2233 \fI-x, --proxy\fP is used with an HTTP/HTTPS proxy. In such a case curl first connects to
2239 .IP "--socks5 <host[:port]>"
2240 Use the specified SOCKS5 proxy - but resolve the host name locally. If the
2243 This option overrides any previous use of \fI-x, --proxy\fP, as they are mutually
2247 with \fI-x, --proxy\fP using a socks5:// protocol prefix.
2249 Since 7.52.0, \fI--preproxy\fP can be used to specify a SOCKS proxy at the same time
2250 \fI-x, --proxy\fP is used with an HTTP/HTTPS proxy. In such a case curl first connects to
2255 This option (as well as \fI--socks4\fP) does not work with IPV6, FTPS or LDAP.
2258 .IP "-Y, --speed-limit <speed>"
2260 speed-time seconds it gets aborted. speed-time is set with \fI-y, --speed-time\fP and is
2264 .IP "-y, --speed-time <seconds>"
2265 If a download is slower than speed-limit bytes per second during a speed-time
2266 period, the download gets aborted. If speed-time is used, the default
2267 speed-limit will be 1 unless set with \fI-Y, --speed-limit\fP.
2270 this is a concern for you, try the \fI--connect-timeout\fP option.
2273 .IP "--ssl-allow-beast"
2281 .IP "--ssl-no-revoke"
2287 .IP "--ssl-reqd"
2291 This option was formerly known as --ftp-ssl-reqd.
2294 .IP "--ssl"
2296 Try to use SSL/TLS for the connection.  Reverts to a non-secure connection if
2297 the server doesn't support SSL/TLS.  See also \fI--ftp-ssl-control\fP and \fI--ssl-reqd\fP
2300 This option was formerly known as --ftp-ssl (Added in 7.11.0). That option
2304 .IP "-2, --sslv2"
2309 …--http1.1\fP and \fI--http2\fP. \fI-2, --sslv2\fP requires that the underlying libcurl was built t…
2310 .IP "-3, --sslv3"
2315 …--http1.1\fP and \fI--http2\fP. \fI-3, --sslv3\fP requires that the underlying libcurl was built t…
2316 .IP "--stderr"
2318 is a plain '-', it is instead written to stdout.
2322 See also \fI-v, --verbose\fP and \fI-s, --silent\fP.
2323 .IP "--styled-output"
2325 terminal. Use --no-styled-output to switch them off.
2328 .IP "--suppress-connect-headers"
2329 When \fI-p, --proxytunnel\fP is used and a CONNECT request is made don't output proxy
2330 CONNECT response headers. This option is meant to be used with \fI-D, --dump-header\fP or
2331 \fI-i, --include\fP which are used to show protocol headers in the output. It has no
2332 effect on debug options such as \fI-v, --verbose\fP or \fI--trace\fP, or any statistics.
2334 See also \fI-D, --dump-header\fP and \fI-i, --include\fP and \fI-p, --proxytunnel\fP.
2335 .IP "--tcp-fastopen"
2339 .IP "--tcp-nodelay"
2347 .IP "-t, --telnet-option <opt=val>"
2355 .IP "--tftp-blksize <value>"
2363 .IP "--tftp-no-options"
2367 or properly implement TFTP options. When this option is used \fI--tftp-blksize\fP is
2371 .IP "-z, --time-cond <time>"
2378 Start the date expression with a dash (-) to make it request for a document
2383 .IP "--tls-max <VERSION>"
2400 See also \fI--tlsv1.0\fP and \fI--tlsv1.1\fP and \fI--tlsv1.2\fP and \fI--tlsv1.3\fP. \fI--tls-max\…
2401 .IP "--tls13-ciphers <list of TLS 1.3 ciphersuites>"
2406  https://curl.haxx.se/docs/ssl-ciphers.html
2409 .IP "--tlsauthtype <type>"
2411 for TLS-SRP (RFC 5054). If \fI--tlsuser\fP and \fI--tlspassword\fP are specified but
2412 \fI--tlsauthtype\fP is not, then this option defaults to "SRP".  This option works
2413 only if the underlying libcurl is built with TLS-SRP support, which requires
2414 OpenSSL or GnuTLS with TLS-SRP support.
2417 .IP "--tlspassword"
2419 \fI--tlsauthtype\fP. Requires that \fI--tlsuser\fP also be set.
2422 .IP "--tlsuser <name>"
2424 \fI--tlsauthtype\fP. Requires that \fI--tlspassword\fP also is set.
2427 .IP "--tlsv1.0"
2431 .IP "--tlsv1.1"
2435 .IP "--tlsv1.2"
2439 .IP "--tlsv1.3"
2447 .IP "-1, --tlsv1"
2451 …--http1.1\fP and \fI--http2\fP. \fI-1, --tlsv1\fP requires that the underlying libcurl was built t…
2452 .IP "--tr-encoding"
2453 (HTTP) Request a compressed Transfer-Encoding response using one of the algorithms
2457 .IP "--trace-ascii <file>"
2459 descriptive information, to the given output file. Use "-" as filename to have
2462 This is very similar to \fI--trace\fP, but leaves out the hex part and only shows
2468 This option overrides \fI--trace\fP and \fI-v, --verbose\fP.
2469 .IP "--trace-time"
2473 .IP "--trace <file>"
2475 descriptive information, to the given output file. Use "-" as filename to have
2481 This option overrides \fI-v, --verbose\fP and \fI--trace-ascii\fP.
2482 .IP "--unix-socket <path>"
2486 .IP "-T, --upload-file <file>"
2494 Use the file name "-" (a single dash) to use stdin instead of a given file.
2496 of "-" to use stdin in non-blocking mode to allow reading server output
2499 You can specify one \fI-T, --upload-file\fP for each URL on the command line. Each
2500 \fI-T, --upload-file\fP + URL pair specifies what to upload and to where. curl also
2501 supports "globbing" of the \fI-T, --upload-file\fP argument, meaning that you can upload
2505  curl --upload-file "{file1,file2}" http://www.example.com
2509  curl -T "img[1-1000].png" ftp://ftp.example.com/upload/
2515 .IP "--url <url>"
2517 URL(s) in a config file.
2520 then curl will make a guess based on the host. If the outermost sub-domain
2523 setting a default protocol, see \fI--proto-default\fP for details.
2526 written, use the \fI-o, --output\fP or the \fI-O, --remote-name\fP options.
2527 .IP "-B, --use-ascii"
2531 .IP "-A, --user-agent <name>"
2533 Specify the User-Agent string to send to the HTTP server. To encode blanks in
2535 be set with the \fI-H, --header\fP or the \fI--proxy-header\fP options.
2538 .IP "-u, --user <user:password>"
2540 \fI-n, --netrc\fP and \fI--netrc-optional\fP.
2563 To specify the domain name use either Down-Level Logon Name or UPN (User
2567 If you use a Windows SSPI-enabled curl binary and perform Kerberos V5,
2570 with this option: "-u :".
2573 .IP "-v, --verbose"
2580 If you only want HTTP headers in the output, \fI-i, --include\fP might be the option
2584 \fI--trace\fP or \fI--trace-ascii\fP instead.
2586 Use \fI-s, --silent\fP to make curl really quiet.
2588 See also \fI-i, --include\fP. This option overrides \fI--trace\fP and \fI--trace-ascii\fP.
2589 .IP "-V, --version"
2613 This curl uses a libcurl built with Debug. This enables more error-tracking
2614 and memory debugging etc. For curl-developers only!
2617 done using either the c-ares or the threaded resolver backends.
2623 This curl supports IDN - international domain names.
2624 .IP "GSS-API"
2625 GSS-API is supported.
2628 .IP "TLS-SRP"
2631 HTTP/2 support has been built-in.
2634 .IP "HTTPS-proxy"
2646 .IP "-w, --write-out <format>"
2651 format from stdin you write "@-".
2663 The %-symbol is a special symbol in the win32-environment, where all
2670 The Content-Type of the requested document, if there was any.
2674 is told to write to a file with the \fI-O, --remote-name\fP or \fI-o, --output\fP
2675 option. It's most useful in combination with the \fI-J, --remote-header-name\fP
2695 The IP address of the local end of the most recently done connection - can be
2696 either IPv4 or IPv6 (Added in 7.29.0)
2712 When an HTTP request was made without \fI-L, --location\fP to follow redirects (or when
2713 --max-redir is met), this variable will show the actual URL a redirect
2717 The remote IP address of the most recently done connection - can be either
2718 IPv4 or IPv6 (Added in 7.29.0)
2751 From this point on, the \fI-w, --write-out\fP output will be written to standard
2755 From this point on, the \fI-w, --write-out\fP output will be written to standard output.
2773 about to begin. This includes all pre-transfer commands and negotiations that
2796 .IP "--xattr"
2805 Default config file, see \fI-K, --config\fP for details.
2812 the \fI-x, --proxy\fP option.
2818 .IP "[url-protocol]_PROXY [protocol://]<host>[:port]"
2819 Sets the proxy server to use for [url-protocol], where the protocol is a
2823 Sets the proxy server to use if no protocol-specific proxy is set.
2824 .IP "NO_PROXY <comma-separated list of hosts/domains>"
2830 the \fI-x, --proxy\fP option. That is
2831 .B NO_PROXY=direct.example.com curl -x http://proxy.example.com
2834 .B NO_PROXY=direct.example.com curl -x http://proxy.example.com
2854 Makes it the equivalent of \fI--socks4\fP
2856 Makes it the equivalent of \fI--socks4a\fP
2858 Makes it the equivalent of \fI--socks5\fP
2860 Makes it the equivalent of \fI--socks5-hostname\fP
2873 enabled or was explicitly disabled at build-time. To make curl able to do
2899 FTP weird 227 format. Curl couldn't parse the 227-line the server sent.
2901 FTP can't get host. Couldn't resolve the host IP we got in the 227-line.
2918 appears if \fI-f, --fail\fP is used.
2929 Operation timeout. The specified time-out period was reached according to the
2940 HTTP post error. Internal post-request generation error.