windows 篇：

安装篇：

我的电脑版本是windows7,64位，对应的curl下载地址如下：

https://curl.haxx.se/download.html

直接找到下面的这个版本：

curl-7.57.0.tar.gz  gpg mirror  metalink

解压，然后，命令行进入到 curl 目录下：
我的路径为：E:\curl-7.57.0\curl-7.57.0

在该目录下 —— git bash here,或者，wind+r 快捷键  输入cmd ,然后到该目录下

然后，就可以用curl 命令了

例如：

curl 'www.baidu.com'

你会得到如下的信息：

 % Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed0     0    0     0    0     0      0      0 --:--:--  0:00:06 --:--:--     0

---------------------------------我是不靠谱的分割线----------------------------------------------

基本命令行：

首先，学每一种新知识之前，我们都要注重官方文档。在没有资料之前，我们可以先看帮助：、

curl --help

如下：

$ curl --help
Usage: curl [options...] <url>
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-status   Verify the status of the server certificate (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   Read config from FILE--connect-timeout SECONDS  Maximum time allowed for connection-C, --continue-at OFFSET  Resumed transfer OFFSET-b, --cookie STRING/FILE  Read cookies from STRING/FILE (H)-c, --cookie-jar FILE  Write cookies to 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-raw DATA  HTTP POST data, '@' allowed (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)--dns-servers   DNS server addrs to use: 1.1.1.1;2.2.2.2--dns-interface  Interface to use for DNS requests--dns-ipv4-addr  IPv4 address to use for DNS requests, dot notation--dns-ipv6-addr  IPv6 address to use for DNS requests, dot notation-D, --dump-header FILE  Write the headers to FILE--egd-file FILE  EGD socket path for random data (SSL)--engine ENGINE  Crypto engine (use "--engine list" for list) (SSL)--expect100-timeout SECONDS How long to wait for 100-continue (H)-f, --fail          Fail silently (no output at all) on HTTP errors (H)--false-start   Enable TLS False Start.-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   Pass custom header LINE 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)--http1.1       Use HTTP 1.1 (H)--http2         Use HTTP 2 (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  Use network INTERFACE (or address)-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  Wait SECONDS 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 security LEVEL (F)--libcurl FILE  Dump libcurl equivalent code of this command line--limit-rate RATE  Limit transfer speed to RATE-l, --list-only     List only mode (F/POP3)--local-port RANGE  Force use of RANGE for local port numbers-L, --location      Follow redirects (H)--location-trusted  Like '--location', and send auth to other hosts (H)--login-options OPTIONS  Server login options (IMAP, POP3, SMTP)-M, --manual        Display the full manual--mail-from FROM  Mail from this address (SMTP)--mail-rcpt TO  Mail to this/these addresses (SMTP)--mail-auth AUTH  Originator address of the original email (SMTP)--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 (SPNEGO) authentication (H)-n, --netrc         Must read .netrc for user name and password--netrc-optional  Use either .netrc or URL; overrides -n--netrc-file FILE  Specify FILE for netrc-:, --next          Allows the following URL to use a separate set of options--no-alpn       Disable the ALPN TLS extension (H)-N, --no-buffer     Disable buffering of the output stream--no-keepalive  Disable keepalive use on the connection--no-npn        Disable the NPN TLS extension (H)--no-sessionid  Disable SSL session-ID reusing (SSL)--noproxy       List of hosts which do not use proxy--ntlm          Use HTTP NTLM authentication (H)--oauth2-bearer TOKEN  OAuth 2 Bearer Token (IMAP, POP3, SMTP)-o, --output FILE   Write to FILE instead of stdout--pass PASS     Pass phrase for the private key (SSL/SSH)--path-as-is    Do not squash .. sequences in URL path--pinnedpubkey FILE/HASHES Public key to verify peer against (SSL)--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 PROTOCOLS--proto-default PROTOCOL  Use PROTOCOL for any URL missing a scheme--proto-redir PROTOCOLS   Enable/disable 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 HTTP Negotiate (SPNEGO) authentication on the proxy (H)--proxy-ntlm    Use NTLM authentication on the proxy (H)--proxy-service-name NAME  SPNEGO proxy service name--service-name NAME  SPNEGO service name-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 RANGE--raw           Do HTTP "raw"; no 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  Wait SECONDS between retries--retry-max-time SECONDS  Retry only within this period--sasl-ir       Enable initial response in SASL authentication-S, --show-error    Show error. With -s, make curl show errors when they occur-s, --silent        Silent mode (don't 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 GSS-API--socks5-gssapi-nec  Compatibility with NEC SOCKS5 server-Y, --speed-limit RATE  Stop transfers below RATE for 'speed-time' secs-y, --speed-time SECONDS  Trigger 'speed-limit' abort after SECONDS (default: 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)--ssl-no-revoke    Disable cert revocation checks (WinSSL)--stderr FILE   Where to redirect stderr (use "-" for 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, --tlsv1         Use >= TLSv1 (SSL)--tlsv1.0       Use TLSv1.0 (SSL)--tlsv1.1       Use TLSv1.1 (SSL)--tlsv1.2       Use TLSv1.2 (SSL)--trace FILE    Write a debug trace to FILE--trace-ascii FILE  Like --trace, but without 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)--unix-socket FILE    Connect through this Unix domain socket-A, --user-agent STRING  Send User-Agent STRING to server (H)-v, --verbose       Make the operation more talkative-V, --version       Show version number and quit-w, --write-out FORMAT  Use output FORMAT after completion--xattr         Store metadata in extended file attributes-q                  Disable .curlrc (must be first parameter)

每一种命令之后都跟了，英文说明，我暂时就不做翻译了。

下面介绍几个常用的命令：

1.查看网页源代码，以 www.oschina.net 为例

curl www.oschina.net

抱歉，我内网受限，总访问超时，只能得到如下信息。

$ curl https://www.oschina.net/% Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed0     0    0     0    0     0      0      0 --:--:--  0:00:15 --:--:--     0

然后是保存这个文件。

curl -o [文件名] www.sina.com

curl -0 china www.oschina.net

2.只显示头信息 在curl 命令中加上 -i 即可，操作时将网址换成对应自己的，例如：www.oschina.net

$ curl -i -XGET 'localhost:9200/'% Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed
100   432  100   432    0     0  27000      0 --:--:-- --:--:-- --:--:-- 27000HTTP/1.1 200 OK
content-type: application/json; charset=UTF-8
content-length: 432{"name" : "5ZS6Wl8","cluster_name" : "elasticsearch","cluster_uuid" : "gY8furXtSsGJr5Nmlv0oNg","version" : {"number" : "6.1.1","build_hash" : "bd92e7f","build_date" : "2017-12-17T20:23:25.338Z","build_snapshot" : false,"lucene_version" : "7.1.0","minimum_wire_compatibility_version" : "5.6.0","minimum_index_compatibility_version" : "5.0.0"},"tagline" : "You Know, for Search"
}

3.显示通信过程（ip地址，端口号）

$ curl -v www.oschina.net
* Rebuilt URL to: www.oschina.net/
* timeout on name lookup is not supported
*   Trying 116.211.174.177...% Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed0     0    0     0    0     0      0      0 --:--:--  0:00:14 --:--:--     0

想看更详细的就使用

curl --trace output.txt www.oschina.net

打开output.txt文件就有相关信息

$ curl.exe 'http://localhost:9200/?pretty'% Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed
100   432  100   432    0     0  28800      0 --:--:-- --:--:-- --:--:-- 28800{"name" : "5ZS6Wl8","cluster_name" : "elasticsearch","cluster_uuid" : "gY8furXtSsGJr5Nmlv0oNg","version" : {"number" : "6.1.1","build_hash" : "bd92e7f","build_date" : "2017-12-17T20:23:25.338Z","build_snapshot" : false,"lucene_version" : "7.1.0","minimum_wire_compatibility_version" : "5.6.0","minimum_index_compatibility_version" : "5.0.0"},"tagline" : "You Know, for Search"
}

附上一个gitbook版本的全部教程说明，英文版，呜呜，需要的童鞋点击下面：

https://www.gitbook.com/book/bagder/everything-curl/details

后续，会再做更新，蟹蟹您的阅读。
linux篇：

1.获得安装包，从网上直接下载或者其他途径，这里直接wget

wget http://curl.haxx.se/download/curl-7.20.0.tar.gz

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2.解压到当前目录（或者 http://www.linuxidc.com/Linux/2014-08/106022.htm）

 tar -zxf curl-7.20.0.tar.gz

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3.进入解压后的目录内

  cd curl-7.17.1

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4.配置，指定安装的目录，这里是“/usr/local/curl”

 ./configure --prefix=/usr/local/curlmake

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5.安装 
make install