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1.curl介绍
linux命令之curl是一款强大的http命令行工具#xff0c;它支持文件的上传和下载#xff0c;是综合传输工具。
2.curl用法
curl [参数] [url] curl参数 参数说明-C断点续传-o filename把输出写到filename文件中-x在给定的端口上使用HT…linux命令之curl
1.curl介绍
linux命令之curl是一款强大的http命令行工具它支持文件的上传和下载是综合传输工具。
2.curl用法
curl [参数] [url]
curl参数 参数说明-C断点续传-o filename把输出写到filename文件中-x在给定的端口上使用HTTP代理-显示当前的传送状态-i打印服务器回应的HTTP头-I向服务器发出 HEAD 请求然会将服务器返回的 HTTP 标头打印出来等价于--head
3.实例
3.1.下载CentOS-Base.repo到/etc/yum.repos.d/
命令
curl -C - -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
[rootrhel77 ~]# curl -C - -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo% Total % Received % Xferd Average Speed Time Time Time CurrentDload Upload Total Spent Left Speed
100 2523 100 2523 0 0 3731 0 --:--:-- --:--:-- --:--:-- 3726
[rootrhel77 yum.repos.d]# cd /etc/yum.repos.d/
[rootrhel77 yum.repos.d]# ls -l CentOS-Base.repo
-rw-r--r-- 1 root root 2523 Aug 28 15:07 CentOS-Base.repo
[rootrhel77 yum.repos.d]# 3.2.使用指定端口进行代理设置
命令
curl -x 39.156.66.18:80 www.baidu.com
[rootrhel77 yum.repos.d]# curl -x 39.156.66.18:80 www.baidu.com
!DOCTYPE html
!--STATUS OK--html headmeta http-equivcontent-type contenttext/html;charsetutf-8meta http-equivX-UA-Compatible contentIEEdgemeta contentalways namereferrerlink relstylesheet typetext/css hrefhttp://s1.bdstatic.com/r/www/cache/bdorz/baidu.min.csstitle百度一下你就知道/title/head body link#0000cc div idwrapper div idhead div classhead_wrapper div classs_form div classs_form_wrapper div idlg img hidefocustrue src//www.baidu.com/img/bd_logo1.png width270 height129 /div form idform namef action//www.baidu.com/s classfm input typehidden namebdorz_come value1 input typehidden nameie valueutf-8 input typehidden namef value8 input typehidden namersv_bp value1 input typehidden namersv_idx value1 input typehidden nametn valuebaiduspan classbg s_ipt_wrinput idkw namewd classs_ipt value maxlength255 autocompleteoff autofocus/spanspan classbg s_btn_wrinput typesubmit idsu value百度一下 classbg s_btn/span /form /div /div div idu1 a hrefhttp://news.baidu.com nametj_trnews classmnav新闻/a a hrefhttp://www.hao123.com nametj_trhao123 classmnavhao123/a a hrefhttp://map.baidu.com nametj_trmap classmnav地图/a a hrefhttp://v.baidu.com nametj_trvideo classmnav视频/a a hrefhttp://tieba.baidu.com nametj_trtieba classmnav贴吧/a noscript a hrefhttp://www.baidu.com/bdorz/login.gif?loginamp;tplmnamp;uhttp%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 nametj_login classlb登录/a /noscript scriptdocument.write(a hrefhttp://www.baidu.com/bdorz/login.gif?logintplmnu encodeURIComponent(window.location.href (window.location.search ? ? : ) bdorz_come1) nametj_login classlb登录/a);/script a href//www.baidu.com/more/ nametj_briicon classbri styledisplay: block;更多产品/a /div /div /div div idftCon div idftConw p idlh a hrefhttp://home.baidu.com关于百度/a a hrefhttp://ir.baidu.comAbout Baidu/a /p p idcpcopy;2017nbsp;Baidunbsp;a hrefhttp://www.baidu.com/duty/使用百度前必读/anbsp; a hrefhttp://jianyi.baidu.com/ classcp-feedback意见反馈/anbsp;京ICP证030173号nbsp; img src//www.baidu.com/img/gs.gif /p /div /div /div /body /html
[rootrhel77 yum.repos.d]# 3.3.打印服务器回应的HTTP头
命令
curl -i www.baidu.com
[rootrhel77 ~]# curl -i www.baidu.com
HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
Connection: keep-alive
Content-Length: 2381
Content-Type: text/html
Date: Mon, 28 Aug 2023 07:16:06 GMT
Etag: 588604c8-94d
Last-Modified: Mon, 23 Jan 2017 13:27:36 GMT
Pragma: no-cache
Server: bfe/1.0.8.18
Set-Cookie: BDORZ27315; max-age86400; domain.baidu.com; path/!DOCTYPE html
!--STATUS OK--html headmeta http-equivcontent-type contenttext/html;charsetutf-8meta http-equivX-UA-Compatible contentIEEdgemeta contentalways namereferrerlink relstylesheet typetext/css hrefhttp://s1.bdstatic.com/r/www/cache/bdorz/baidu.min.csstitle百度一下你就知道/title/head body link#0000cc div idwrapper div idhead div classhead_wrapper div classs_form div classs_form_wrapper div idlg img hidefocustrue src//www.baidu.com/img/bd_logo1.png width270 height129 /div form idform namef action//www.baidu.com/s classfm input typehidden namebdorz_come value1 input typehidden nameie valueutf-8 input typehidden namef value8 input typehidden namersv_bp value1 input typehidden namersv_idx value1 input typehidden nametn valuebaiduspan classbg s_ipt_wrinput idkw namewd classs_ipt value maxlength255 autocompleteoff autofocus/spanspan classbg s_btn_wrinput typesubmit idsu value百度一下 classbg s_btn/span /form /div /div div idu1 a hrefhttp://news.baidu.com nametj_trnews classmnav新闻/a a hrefhttp://www.hao123.com nametj_trhao123 classmnavhao123/a a hrefhttp://map.baidu.com nametj_trmap classmnav地图/a a hrefhttp://v.baidu.com nametj_trvideo classmnav视频/a a hrefhttp://tieba.baidu.com nametj_trtieba classmnav贴吧/a noscript a hrefhttp://www.baidu.com/bdorz/login.gif?loginamp;tplmnamp;uhttp%3A%2F%2Fwww.baidu.com%2f%3fbdorz_come%3d1 nametj_login classlb登录/a /noscript scriptdocument.write(a hrefhttp://www.baidu.com/bdorz/login.gif?logintplmnu encodeURIComponent(window.location.href (window.location.search ? ? : ) bdorz_come1) nametj_login classlb登录/a);/script a href//www.baidu.com/more/ nametj_briicon classbri styledisplay: block;更多产品/a /div /div /div div idftCon div idftConw p idlh a hrefhttp://home.baidu.com关于百度/a a hrefhttp://ir.baidu.comAbout Baidu/a /p p idcpcopy;2017nbsp;Baidunbsp;a hrefhttp://www.baidu.com/duty/使用百度前必读/anbsp; a hrefhttp://jianyi.baidu.com/ classcp-feedback意见反馈/anbsp;京ICP证030173号nbsp; img src//www.baidu.com/img/gs.gif /p /div /div /div /body /html
[rootrhel77 ~]# 3.4.向服务器发出 HEAD 请求然会将服务器返回的 HTTP 标头打印出来
命令
curl -I www.baidu.com -I:大小字母i
curl --head www.baidu.com
[rootrhel77 ~]# curl -I www.baidu.com
HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
Connection: keep-alive
Content-Length: 277
Content-Type: text/html
Date: Mon, 28 Aug 2023 07:17:14 GMT
Etag: 575e1f60-115
Last-Modified: Mon, 13 Jun 2016 02:50:08 GMT
Pragma: no-cache
Server: bfe/1.0.8.18[rootrhel77 ~]# curl --head www.baidu.com
HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
Connection: keep-alive
Content-Length: 277
Content-Type: text/html
Date: Mon, 28 Aug 2023 07:17:18 GMT
Etag: 575e1f60-115
Last-Modified: Mon, 13 Jun 2016 02:50:08 GMT
Pragma: no-cache
Server: bfe/1.0.8.18[rootrhel77 ~]#
