• Usage: curl [options…] Options: (H) means HTTP/HTTPS only, (F) means FTP only –anyauth Pick “any” authentication method (H)

  • -a, –append Append to target file when uploading (F/SFTP) –basic Use HTTP Basic Authentication (H) –cacert FILE CA certificate to verify peer against (SSL) –capath DIR CA directory to verify peer against (SSL)

  • -E, –cert CERT[:PASSWD] Client certificate file and password (SSL) –cert-type TYPE Certificate file type (DER/PEM/ENG) (SSL) –ciphers LIST SSL ciphers to use (SSL) –compressed Request compressed response (using deflate or gzip)

  • -K, –config FILE Specify which config file to read –connect-timeout SECONDS Maximum time allowed for connection

  • -C, –continue-at OFFSET Resumed transfer offset

  • -b, –cookie STRING/FILE String or file to read cookies from (H)

  • -c, –cookie-jar FILE Write cookies to this file after operation (H) –create-dirs Create necessary local directory hierarchy –crlf Convert LF to CRLF in upload –crlfile FILE Get a CRL list in PEM format from the given file

  • -d, –data DATA HTTP POST data (H) –data-ascii DATA HTTP POST ASCII data (H) –data-binary DATA HTTP POST binary data (H) –data-urlencode DATA HTTP POST data url encoded (H) –delegation STRING GSS-API delegation permission –digest Use HTTP Digest Authentication (H) –disable-eprt Inhibit using EPRT or LPRT (F) –disable-epsv Inhibit using EPSV (F)

  • -D, –dump-header FILE Write the headers to this file –egd-file FILE EGD socket path for random data (SSL) –engine ENGINGE Crypto engine (SSL). “–engine list” for list

  • -f, –fail Fail silently (no output at all) on HTTP errors (H)

  • -F, –form CONTENT Specify HTTP multipart POST data (H) –form-string STRING Specify HTTP multipart POST data (H) –ftp-account DATA Account data string (F) –ftp-alternative-to-user COMMAND String to replace “USER [name]” (F) –ftp-create-dirs Create the remote dirs if not present (F) –ftp-method [MULTICWD/NOCWD/SINGLECWD] Control CWD usage (F) –ftp-pasv Use PASV/EPSV instead of PORT (F)

  • -P, –ftp-port ADR Use PORT with given address instead of PASV (F) –ftp-skip-pasv-ip Skip the IP address for PASV (F) –ftp-pret Send PRET before PASV (for drftpd) (F) –ftp-ssl-ccc Send CCC after authenticating (F) –ftp-ssl-ccc-mode ACTIVE/PASSIVE Set CCC mode (F) –ftp-ssl-control Require SSL/TLS for ftp login, clear for transfer (F)

  • -G, –get Send the -d data with a HTTP GET (H)

  • -g, –globoff Disable URL sequences and ranges using {} and []

  • -H, –header LINE Custom header to pass to server (H)

  • -I, –head Show document info only

  • -h, –help This help text –hostpubmd5 MD5 Hex encoded MD5 string of the host public key. (SSH) -0, –http1.0 Use HTTP 1.0 (H) –ignore-content-length Ignore the HTTP Content-Length header

  • -i, –include Include protocol headers in the output (H/F)

  • -k, –insecure Allow connections to SSL sites without certs (H) –interface INTERFACE Specify network interface/address to use

  • -4, –ipv4 Resolve name to IPv4 address

  • -6, –ipv6 Resolve name to IPv6 address

  • -j, –junk-session-cookies Ignore session cookies read from file (H) –keepalive-time SECONDS Interval between keepalive probes –key KEY Private key file name (SSL/SSH) –key-type TYPE Private key file type (DER/PEM/ENG) (SSL) –krb LEVEL Enable Kerberos with specified security level (F) –libcurl FILE Dump libcurl equivalent code of this command line –limit-rate RATE Limit transfer speed to this rate

  • -l, –list-only List only names of an FTP directory (F) –local-port RANGE Force use of these local port numbers

  • -L, –location Follow redirects (H) –location-trusted like –location and send auth to other hosts (H)

  • -M, –manual Display the full manual –mail-from FROM Mail from this address –mail-rcpt TO Mail to this receiver(s) –mail-auth AUTH Originator address of the original email –max-filesize BYTES Maximum file size to download (H/F) –max-redirs NUM Maximum number of redirects allowed (H)

  • -m, –max-time SECONDS Maximum time allowed for the transfer –metalink Process given URLs as metalink XML file –negotiate Use HTTP Negotiate Authentication (H)

  • -n, –netrc Must read .netrc for user name and password –netrc-optional Use either .netrc or URL; overrides -n –netrc-file FILE Set up the netrc filename to use

  • -N, –no-buffer Disable buffering of the output stream –no-keepalive Disable keepalive use on the connection –no-sessionid Disable SSL session-ID reusing (SSL) –noproxy List of hosts which do not use proxy –ntlm Use HTTP NTLM authentication (H)

  • -o, –output FILE Write output to instead of stdout –pass PASS Pass phrase for the private key (SSL/SSH) –post301 Do not switch to GET after following a 301 redirect (H) –post302 Do not switch to GET after following a 302 redirect (H) –post303 Do not switch to GET after following a 303 redirect (H)

  • – #, –progress-bar Display transfer progress as a progress bar –proto PROTOCOLS Enable/disable specified protocols –proto-redir PROTOCOLS Enable/disable specified protocols on redirect

  • -x, –proxy [PROTOCOL://]HOST[:PORT] Use proxy on given port

    –proxy-anyauth Pick “any” proxy authentication method (H) –proxy-basic Use Basic authentication on the proxy (H) –proxy-digest Use Digest authentication on the proxy (H) –proxy-negotiate Use Negotiate authentication on the proxy (H) –proxy-ntlm Use NTLM authentication on the proxy (H)

  • -u, –proxy-user user [:PASSWORD] proxy user and PASSWORD –proxy1.0 HOST[:PORT] Use HTTP/1.0 proxy on given PORT

  • -p, –proxytunnel Operate through a HTTP proxy tunnel (using CONNECT) –pubkey KEY Public key file name (SSH)

  • -Q, –quote CMD Send command(s) to server before transfer (F/SFTP) –random-file FILE File for reading random data from (SSL)

  • -r, –range RANGE Retrieve only the bytes within a range –raw Do HTTP “raw”, without any transfer decoding (H)

  • -e, –referer Referer URL (H)

  • -J, –remote-header-name Use the header-provided filename (H)

  • -O, –remote-name Write output to a file named as the remote file –remote-name-all Use the remote file name for all URLs

  • -R, –remote-time Set the remote file’s time on the local output

  • -X, –request COMMAND Specify request command to use –resolve HOST:PORT:ADDRESS Force resolve of HOST:PORT to ADDRESS –retry NUM Retry request NUM times if transient problems occur –retry-delay SECONDS When retrying, wait this many seconds between each –retry-max-time SECONDS Retry only within this period

  • -S, –show-error Show error. With -s, make curl show errors when they occur

  • -s, –silent silent mode. Don’t output anything Silent mode. Do not output anything –socks4 HOST[:PORT] socks4 proxy on given HOST + PORT –socks4a HOST[:PORT] Socks4A proxy on given HOST + PORT –socks5 HOST[:PORT] SOCKS5 proxy on given host + port –socks5-hostname HOST[:PORT] SOCKS5 proxy, pass host name to proxy –socks5-gssapi-service NAME SOCKS5 proxy service name for gssapi –socks5-gssapi-nec Compatibility with NEC SOCKS5 server

  • -Y, –speed-limit RATE Stop transfers below speed-limit for ‘speed-time’ secs

  • -y, –speed-time SECONDS Time for trig speed-limit abort. Defaults to 30 –ssl Try SSL/TLS (FTP, IMAP, POP3, SMTP) –ssl-reqd Require SSL/TLS (FTP, IMAP, POP3, SMTP)

  • -2, –sslv2 Use SSLv2 (SSL)

  • – 3, –sslv3 Use SSLv3 (SSL) –ssl-allow-beast Allow security flaw to improve interop (SSL) –stderr FILE Where to redirect stderr. – means stdout –tcp-nodelay Use the TCP_NODELAY option

  • -t, –telnet-option OPT=VAL Set telnet option –tftp-blksize VALUE Set TFTP BLKSIZE option (must be >512)

  • -z, –time-cond TIME Transfer based on a time condition

  • 1, Use TLSv1.0 (SSL) — TLsv1.1 Use TLsv1.1 (SSL) –tlsv1.2 Use tlsv1.2 (SSL) –trace FILE Write a debug trace to the given file –trace-ascii FILE Like –trace but without the hex output –trace-time Add time stamps to trace/verbose output –tr-encoding Request compressed transfer encoding (H)

  • -T, –upload-file FILE Transfer FILE to destination –url URL URL to work with

  • -B, –use-ascii Use ASCII/text transfer

  • -u, –user USER[:PASSWORD] Server user and password –tlsuser USER TLS username –tlspassword STRING TLS password –tlsauthtype STRING TLS authentication type (default SRP)

  • -A, –user-agent STRING User-Agent to send to server (H)

  • -v, –verbose Make the operation more talkative

  • -V, –version Show version number and quit

  • -w, –write-out FORMAT What to output after completion –xattr Store metadata in extended file attributes

  • -q If used as the first parameter disables .curlrc