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Download a file with cURL. 1. Curl download file from command line. 1. How to wget/curl past a redirect to download content? 2. Piping wget into curl. 0. How to Set up curl Download ftp directory content from 1000 genomes data-1. Curl download all files in a directory. Related. 1. trying to use curl to download a series of files. 2. cURL download

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Hi @bagderI am using curl with --http3-only option to download file from nginx server.From below curl man page and help page i came to know that using --http3 will allow to fall back ,--http3-only will not allow to fallback but seems to be with --http3-only also curl is falling back and using http1.1man curl:---http3-onlysion on its own. Use --http3 for similar functionality with a fallback.Instructs curl to use HTTP/3 to the host in the URL, with no fallback to earlier HTTP versions.This option will make curl fail if a QUIC connection cannot be established, it will not attempt any other HTTP version on its own --http3 Use --http3-only for similar functionality without a fallback.Tells curl to try HTTP/3 to the host in the URL, but fallback to earlier HTTP versions if the HTTP/3 connection establishment failscurl --help all :---http3 Use HTTP v3--http3-only Use HTTP v3 onlyroot@ubuntu:~# curl -# -v -k --http3-only -o index.html 127.0.0.1:443...Connected to 127.0.0.1 (127.0.0.1) port 443 (#0)ALPN: offers http/1.1} [5 bytes data]TLSv1.3 (OUT), TLS handshake, Client hello (1):} [512 bytes data]TLSv1.3 (IN), TLS handshake, Server hello (2):{ [88 bytes data]TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):} [1 bytes data]TLSv1.3 (OUT), TLS handshake, Client hello (1):} [512 bytes data]TLSv1.3 (IN), TLS handshake, Server hello (2):{ [155 bytes data]TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):{ [21 bytes data]TLSv1.3 (IN), TLS handshake, Certificate (11):{ [768 bytes data]TLSv1.3 (IN), TLS handshake, CERT verify (15):{ [264 bytes data]TLSv1.3 (IN), TLS handshake, Finished (20):{ [52 bytes data]TLSv1.3 (OUT), TLS handshake, Finished

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Curl RTE and Curl CDE 1 is released.

CURL is an extremely powerful command line tool used to transfer data with URL syntax. Known for its versatility, flexibility and ubiquity, curl allows you to quickly interact with web servers, APIs, and services from the comfort of your terminal.While most Linux distributions ship with a version of curl pre-installed, it is often dated and lacks recently added capabilities. As a data scientist and infrastructure engineer with over 10 years of experience building and deploying analytical pipelines, I highly recommend compiling the latest curl from source. Doing so provides you access to new features, security enhancements, performance improvements and support for cutting-edge protocols that can supercharge your data projects.In this comprehensive, 2845+ word guide, you‘ll learn how to build the most up-to-date curl from source code on both CentOS/RHEL and Ubuntu systems. I provide unique expert insights optimized specifically for data analytics use cases across the entire installation process.Why Compile the Latest curl for Data Tasks?Here are some key reasons why installing curl from source is advantageous for data tasks:Faster Data Transfer : New protocols like HTTP/3, FTP3 provide upto 2x speed improvements for moving datasets across endpoints.Accelerated Model Serving: HTTP/3‘s QUIC transport minimizes latency between API and ML model servers via connection migration.Reproducible Pipelines: Version pinning and lockfiles prevent unplanned breakages across vast data ecosystems. Enhanced Debugging : Gain visibility into all network events when transferring petabyte-scale data.Reduced Downtime: Regular updates close security loopholes that may interrupt analytical workflows.Granular Control: Fine-tune and customize curl to best suit your specific data infrastructure needs.Clearly, having full control over the curl build process enables availing new capabilities to supercharge your AI/analytics pipelines through maximized speed, security and reproducibility.Prerequisites for Optimized Data ProcessingWe‘ll be building the latest curl 7.67.0 released on Jan 15, 2020 at the time of writing. For optimized data processing ensure your system meets these requirements:CentOS/RHELUse the latest CentOS 8.x/RHEL 8.x distribution:$ uname -r4.18.0-305.el8.x86_64GCC 10+ compiler: Enables advanced optimizations Fast NVMe storage: Speeds up build I/O 8 GB RAM: Cater to high memory buildsMulti-core CPU: Leverage parallelismUbuntuUbuntu 22.04 LTS or later:$ uname -r 5.15.0-52-genericSimilar fast storage, ample RAM and multi-core resources recommended.Now let‘s get building!Step 1 – Download Using Fastest MirrorAlways download source tarballs from the fastest available mirror near you leveraging utilities like netselect-apt for accelerated transfers:$ netselect-apt get the archive:$ wget -c $(netselect-apt checksums match for integrity assurance. Corrupted downloads can severely impact build reproducibility.Step 2 – Extract

curl (1) - man.freebsd.org

CURL은 클라이언트 URL의 약자이며 데이터를 전송하는 데 사용되는 명령 줄 또는 스크립트입니다. [1] 이 wikiHow는 Windows에 cURL을 설치하는 방법을 보여줍니다. 1 웹 브라우저에서 로 이동 합니다. cURL은 명령 줄이나 스크립트에서 데이터를 전송하는 데 사용됩니다. 예를 들어 curl 응답을 반환합니다. 2 curl 다운로드 마법사를 클릭합니다 . "다운로드 마법사"헤더 아래에 표시됩니다. 삼 curl 실행 파일을 클릭 합니다 . 일반적으로 메뉴의 첫 번째 목록입니다. 4 "운영 체제 선택"아래의 드롭 다운을 클릭하고 Windows 32 또는 64를 선택 합니다. CPU가 32 비트 프로세서 인 경우 32 비트 버전을 다운로드해야합니다. CPU가 64 비트 프로세서 인 경우 둘 중 하나를 다운로드 할 수 있지만 64 비트 버전의 cURL은 CPU의 이점을 최대한 활용합니다. [2] 5 선택을 클릭 합니다. 사용 가능한 OS 호환 다운로드의 드롭 다운 메뉴 옆에 있습니다. 6 원하는 버전을 선택하십시오 (Win32와 같은 특정 다운로드에만 사용 가능). Win32와 같은 일부 cURL 빌드에는 다른 버전이 있습니다. 드롭 다운을 클릭하여 버전을 선택합니다. "일반"을 사용할 수있는 경우 선택하십시오.계속 하려면 선택 을 클릭 하십시오 . 권장 다운로드 페이지로 이동합니다. 7 첫 번째 결과에서 화살표를 클릭합니다. 일반적으로 공식 cURL 웹 사이트에서 다운로드 할 수있는 링크입니다. 8 원하는 빌드를 클릭하십시오. 32 비트와 64 비트 빌드 중 하나를 다시 선택해야 할 수도 있습니다. 9 다운로드 한 파일을 저장하십시오. 파일 브라우저가 뜨면, 파일을 저장하고 클릭 할 위치 선택 저장 . 10 압축 된 폴더에서 파일을 추출합니다. 지정한 위치에 압축 된 파일이 다운로드 되며 계속 하려면 폴더의 압축 을 풀어야합니다 . 폴더를 마우스 오른쪽 버튼으로 클릭하고 ' 모두 추출을 선택한 다음 파일의 압축을 풀 위치를 지정합니다. 11 압축을 푼 폴더와 파일을 열고 찾아 "컬을. exe 인 . " . 이전에 지정한 위치에서 루트 폴더를 찾을 수 있습니다. 그리고 bin 폴더 에서 "curl.exe"를 찾을 수 있습니다. 12 파일 브라우저의 주소 표시 줄에 "cmd"를 입력하여 명령 창을 시작합니다. 시작 메뉴의 검색 영역에 "CMD"를 입력 할 수도 있습니다. 13 명령 창에 "curl"을 입력하고 키를 누릅니다 ↵ Enter. "bin"폴더를 탐색하는. Download a file with cURL. 1. Curl download file from command line. 1. How to wget/curl past a redirect to download content? 2. Piping wget into curl. 0. How to Set up curl Download ftp directory content from 1000 genomes data-1. Curl download all files in a directory. Related. 1. trying to use curl to download a series of files. 2. cURL download

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I have a file that has all the urls from which I need to download. However I need to limit one download at a time.i.e. the next download should begin only once previous one is finished.Is this possible using curl? Or should I use anything else. Stephane6,4723 gold badges28 silver badges48 bronze badges asked Sep 20, 2013 at 7:17 1 xargs -n 1 curl -O answered Sep 16, 2015 at 22:48 GrumdrigGrumdrig4915 silver badges10 bronze badges 3 wget(1) works sequentally by default, and has this option built in: -i file --input-file=file Read URLs from a local or external file. If - is specified as file, URLs are read from the standard input. (Use ./- to read from a file literally named -.) If this function is used, no URLs need be present on the command line. If there are URLs both on the command line and in an input file, those on the command lines will be the first ones to be retrieved. If --force-html is not specified, then file should consist of a series of URLs, one per line. However, if you specify --force-html, the document will be regarded as html. In that case you may have problems with relative links, which you can solve either by adding "" to the documents or by specifying --base=url on the command line. If the file is an external one, the document will be automatically treated as html if the Content-Type matches text/html. Furthermore, the file's location will be implicitly used as base href if none was specified. answered Sep 20, 2013 at 8:40 dawuddawud15.5k4 gold badges44 silver badges62 bronze badges 1 This is possible using curl within a shell script, something like this but you'll need to research appropriate options for curl etc for yourselfwhile read URL curl some options $URL if required check exit status take appropriate actiondone answered Sep 20, 2013 at 7:26 user9517user9517117k20 gold badges222 silver badges306 bronze badges 3 Based on @iain answer, but using proper shell scripting -while read url; do echo "== $url ==" curl -sL -O "$url"done Will also work with weird characters like

curl/curl-container 8.1.2-1 on GitHub - NewReleases.io

NoticeThe URL of the result image is valid for 1 hour. Please download the image file promptly.Supported ImagesFormatResolutionFile sizejpg, jpeg, bmp, png, webp, tiff, tif, bitmap, raw, rgb, jfif, lzwUp to 4096 x 4096Up to 15MBGet StartedSee differences between the 3 API call types #Create a task.curl -k ' \-H 'X-API-KEY: YOUR_API_KEY' \-F 'sync=0' \-F 'image_url=YOU_IMG_URL'#Get the cutout result#Polling requests using the following methods 1. The polling interval is set to 1 second, 2. The polling time does not exceed 30 secondscurl -k ' \-H 'X-API-KEY: YOUR_API_KEY' \php//Create a task$curl = curl_init();curl_setopt($curl, CURLOPT_URL, ' CURLOPT_HTTPHEADER, array( "X-API-KEY: YOUR_API_KEY", "Content-Type: multipart/form-data",));curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_POST, true);curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($curl, CURLOPT_POSTFIELDS, array('sync' => 0, 'image_url' => "YOUR_IMG_URL"));$response = curl_exec($curl);$result = curl_errno($curl) ? curl_error($curl) : $response;curl_close($curl);$result = json_decode($result, true);if ( !isset($result["status"]) || $result["status"] != 200 ) { // request failed, log the details var_dump($result); die("post request failed");}// var_dump($result);$task_id = $result["data"]["task_id"];//get the task result// 1、"The polling interval is set to 1 second."//2 "The polling time is around 30 seconds."for ($i = 1; $i 30; $i++) { if ($i != 1) { sleep(1); } $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, " curl_setopt($curl, CURLOPT_HTTPHEADER, array( "X-API-KEY: YOUR_API_KEY", )); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); $response = curl_exec($curl); $result = curl_errno($curl) ? curl_error($curl) : $response; curl_close($curl); var_dump($result); $result = json_decode($result, true); if ( !isset($result["status"]) || $result["status"] != 200 ) { // Task exception, logging the error. //You can choose to continue the loop with 'continue' or break the loop with 'break' var_dump($result); continue; } if ( $result["data"]["state"] == 1 ) { // task success var_dump($result["data"]["image"]); break; } else if ( $result["data"]["state"] 0) { // request failed, log the details var_dump($result); break; } else { // Task processing if ($i == 30) { //Task processing, abnormal situation, seeking assistance from customer service of picwish } }}public static void main(String[] args) throws Exception { String taskId = createTask(); String result = pollingTaskResult(taskId, 0); System.out.println(result);}private static String createTask() throws Exception { OkHttpClient okHttpClient = new OkHttpClient.Builder().build(); RequestBody requestBody = new MultipartBody.Builder() .setType(MultipartBody.FORM) .addFormDataPart("image_url", "IMAGE_HTTP_URL") .addFormDataPart("sync", "0") .build(); Request request = new Request.Builder() .url(" .addHeader("X-API-KEY", "YOUR_API_KEY") .post(requestBody) .build(); Response response = okHttpClient.newCall(request).execute(); JSONObject jsonObject = new JSONObject(response.body().string()); int status = jsonObject.optInt("status"); if (status != 200) { throw new Exception(jsonObject.optString("message")); } return jsonObject.getJSONObject("data").optString("task_id");}private static String pollingTaskResult(String taskId, int pollingTime) throws Exception { if (pollingTime >= 30) throw new IllegalStateException("Polling result timeout."); OkHttpClient okHttpClient = new OkHttpClient.Builder().build(); Request taskRequest = new Request.Builder() .url(" + taskId) .addHeader("X-API-KEY", "YOUR_API_KEY") .get() .build(); Response taskResponse = okHttpClient.newCall(taskRequest).execute(); JSONObject jsonObject = new JSONObject(taskResponse.body().string()); int state = jsonObject.getJSONObject("data").optInt("state"); if (state 0) { // Error. throw new Exception(jsonObject.optString("message")); } if (state == 1) { // Success and get result. return jsonObject.getJSONObject("data").toString(); } Thread.sleep(1000); return pollingTaskResult(taskId, ++pollingTime);}const request = require("request");const fs = require("fs");const path = require('path')const API_KEY = "YOUR_API_KEY";(async function main() { const taskId = await createTask() const result = await polling(() => getTaskResult(taskId)) console.log(`result: ${JSON.stringify(result, null, 2)}`)})()const polling = async (fn, delay = 1 * 1000, timeout = 30 * 1000) => { if (!fn) { throw new Error('fn is required') } try

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Sending response to the web API method scriptExecutionTimeoutS (default: "50") - specifies CallXML script execution timeout, in seconds Other parameters into CallXML variables CURL example 1: curl -uadmin:admin --digest -X POST -d "@my_file.xml" -H "Content-Type: text/plain;charset=UTF-8" -H "Referer: CURL example 2: curl -uadmin:XYZ --digest -X POST --data-binary "@yyy.xml" -H "Content-Type:text/plain;charset=UTF-8" -H "Referer: content of the xml script file: SUBSCRIBE sip:blf_subscribee00001@y.y.y.y:5062 SIP/2.0Via: SIP/2.0/UDP x.x.x.x:5070;branch=z9hG4bK13054182From: blf_subscriber00001 ;tag=1641318497To: Call-ID: 0_2505407707_bogusCSeq: 1 SUBSCRIBEContact: Accept: application/reginfo+xmlMax-Forwards: 70User-Agent: Yealink SIP-T21P_E2 52.80.0.95Expires: 300Event: dialogContent-Length: 0]]> Example of calling web API in HTML using AJAX: Click-To-Call HTML button POST /API/MainViewModel/CreateCalls_Post - starts call generator specific to the API request, generates multiple outgoing calls using uploaded script. Returns Call-ID SIP header of the first created SIP call in JSON format: {'status': 'OK', 'sipCallId': 'the_new_call_id'}. URL query parameters are: maxCPS, intervalMs, intervalMsL, intervalMsH, maxConcurrentCalls, maxCallsToAttempt, callsPerTick. Other URL query parameters are passed into CallXML variables. The API method passes variable 'apiSequenceNumber' into the scripts, it means zero-based counter of executed scripts. CURL example: curl -uadmin:admin --digest -X POST -d "@my_file.xml" -H "Content-Type:text/plain;charset=UTF-8" GET /API/MainViewModel/CreateSingleCallCommand - creates an outgoing call using currently pre-configured script GET /API/MainViewModel/CurrentCallExists?callerId=XXX&calledId=YYY - checks existence of current call, returns 'true' or 'false' GET /API/MainViewModel/DestroyCall?[sipCallId=XXX][&calledId=YYYY][&calledIdSuffix=ZZZZ] - destroys current SIP call(s) with specified parameters: sipCallId - SIP Call-ID header of the destroyed call(s) calledId - CLD (B number) of the destroyed call(s) calledIdSuffix - CLD (B number) suffix of the destroyed call(s) - this parameter omits tech. prefix GET /DownloadRecordedFile?sipCallId=xxxx&fileId=mixed - downloads recorded WAV or PCAP file from a specific call Parameters: sipCallId - Call-ID header of the SIP call, used to identify the SIP call fileId (rx/tx/mixed) - type of recorded audio file. For audio wav files: "rx" - received RTP audio stream, "tx" - transmitted RTP audio stream, "mixed" - mix or received and transmitted RTP audio

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目录 文章目录 目录 编译安装 YUM 升级 curl 常用选项 编译安装安装编译环境:yum -y groupinstall "Development Tools"yum -y install libev libev-devel zlib zlib-devel openssl openssl-devel git 1 2 安装 OpenSSL:mkdir /var/tmpcd /var/tmpwget -zxf openssl-1.0.2.tar.gzcd openssl-1.0.2mkdir /opt/openssl./config --prefix=/opt/opensslmakemake testmake install 1 2 3 4 5 6 7 8 9 10 安装 nghttp2:git clone nghttp2autoreconf -iautomakeautoconf./configuremakemake installecho '/usr/local/lib' > /etc/ld.so.conf.d/custom-libs.confldconfigldconfig -p| grep libnghttp2 1 2 3 4 5 6 7 8 9 10 11 安装 curl:cd /var/tmpgit clone curl./buildconf./configure --with-ssl=/opt/openssl --with-nghttp2=/usr/local --disable-file --without-pic --disable-sharedmake 1 2 3 4 5 6 验证:$ /var/tmp/curl/src/curl --versioncurl 7.70.0-DEV (x86_64-unknown-linux-gnu) libcurl/7.70.0-DEV OpenSSL/1.0.2o nghttp2/1.41.0-DEVRelease-Date: [unreleased]Protocols: dict ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftpFeatures: AsynchDNS HTTP2 HTTPS-proxy IPv6 Largefile NTLM NTLM_WB SSL TLS-SRP UnixSockets 1 2 3 4 5 注意:curl 从 7.52.0 版本开始也已经支持 TLS 1.3 了,curl 7.61.0 及以上在 TLS 握手过程中协商 TLS 版本时,curl 默认使用 TLS 1.3,但也取决于 curl 正在使用的 TLS 库及其版本,例如:要求 OpenSSL 1.1.1 版本以上。YUM 升级安装新版 libcurl 的 yum 源:rpm -ivh 1 升级:yum upgrade libcurl 1 升级完成后可以卸载此 yum 源:rpm -e city-fan.org-release 1 curl 常用选项语法格式: curl [options] [URL...]常用选项如下所示: -A/--user-agent : 设置用户代理发送给服务器 -e/--referer : 来源网址 --cacert : CA 证书(SSL) -k/--insecure: 允许忽略证书进行 SSL 连接 --compressed: 要求返回是压缩的格式 -H/--header : 自定义首部信息传递给服务器 -i: 显示页面内容,包括报文首部信息 -I/--head: 只显示响应报文首部信息 -D/--dump-header : 将 URL 的 header 信息存放在指定文件中 --basic: 使用 HTTP 基本认证 -u/--user : 设置服务器的用户和密码 -L: 如果有 3xx 响应码,重新发请求到新位置 -O: 使用 URL 中默认的文件名保存文件到本地 -o : 将网络文件保存为指定的文件中 --limit-rate : 设置传输速度 -0/--http1.0: 数字 0,使用 HTTP 1.0 -v/--verbose: 更详细 -C: 选项可对文件使用断点续传功能 -c/--cookie-jar : 将 URL 中 Cookie 存放在指定文件中 -x/--proxy : 指定代理服务器地址 -X/--request : 向服务器发送指定请求方法 -U/--proxy-user : 代理服务器用户和密码 -T: 选项可将指定的本地文件上传到 FTP 服务器上 --data/-d: 方式指定使用 POST 方式传递数据 -b name=data: 从服务器响应 set-cookie 得到值,返回给服务器 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 文章来源: is-cloud.blog.csdn.net,作者:范桂飓,版权归原作者所有,如需转载,请联系作者。原文链接:is-cloud.blog.csdn.net/article/details/105695093 【版权声明】本文为华为云社区用户转载文章,如果您发现本社区中有涉嫌抄袭的内容,欢迎发送邮件进行举报,并提供相关证据,一经查实,本社区将立刻删除涉嫌侵权内容,举报邮箱: cloudbbs@huaweicloud.com. Download a file with cURL. 1. Curl download file from command line. 1. How to wget/curl past a redirect to download content? 2. Piping wget into curl. 0. How to Set up curl Download ftp directory content from 1000 genomes data-1. Curl download all files in a directory. Related. 1. trying to use curl to download a series of files. 2. cURL download

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CURL 8.12.1 Date released: 14 Feb 2025 (one month ago) cURL 8.12.0 Date released: 05 Feb 2025 (one month ago) cURL 8.11.1 Date released: 11 Dec 2024 (3 months ago) cURL 8.11.0 Date released: 06 Nov 2024 (5 months ago) cURL 8.10.1 Date released: 18 Sep 2024 (6 months ago) cURL 8.10.0 Date released: 11 Sep 2024 (7 months ago) cURL 8.9.1 Date released: 31 Jul 2024 (8 months ago) cURL 8.9.0 Date released: 24 Jul 2024 (8 months ago) cURL 8.8.0 Date released: 22 May 2024 (10 months ago) cURL 8.7.1 Date released: 27 Mar 2024 (12 months ago) cURL 8.6.0 Date released: 31 Jan 2024 (one year ago) cURL 8.5.0 Date released: 06 Dec 2023 (one year ago) cURL 8.4.0 Date released: 11 Oct 2023 (one year ago) cURL 8.3.0 Date released: 13 Sep 2023 (one year ago) cURL 8.2.1 Date released: 26 Jul 2023 (one year ago) cURL 8.2.0 Date released: 19 Jul 2023 (one year ago) cURL 8.1.2 Date released: 30 May 2023 (one year ago) cURL 8.1.1 Date released: 23 May 2023 (one year ago) cURL 8.1.0 Date released: 18 May 2023 (one year ago) cURL 8.0.0 Date released: 20 Mar 2023 (2 years ago)

Curl 8 Is Here On Curl's 25th Birthday - i-programmer.info

#2 DirectAdmin intends to drop custom installation of cURL in favor of using the version installed from OS repository. #3 That s*cks...Well, now solved it by changing the download URL in build; CURL_DOWNLOADURL="${WEBPATH}/curl-${CURL_VER}.tar.gz" into CURL_DOWNLOADURL=" That did it's job, still got it installed faster compared to the distro. Last edited: Nov 22, 2022 #4 Be prepared that it’s possible that doesn’t work anymore in newer DA/CB versions #5 Be prepared that it’s possible that doesn’t work anymore in newer DA/CB versions Yea... was already affraid of that.. Sucks because with some distro's (like Debian) it sometimes takes ages before a new update are taken into their repo's unless your using and satisfied with the unstable/testing branch. Besides that, I'm also wondering how secure it will remain. The past updates of Curl contained quite some security fixes to solve some vulnerabilities which isn't for nothing, so it's strange to see some people (here and there) say the OS version is good/safe enough. Last edited: Nov 22, 2022 #6 DirectAdmin intends to drop custom installation of cURL in favor of using the version installed from OS repository. That doesn't seem to be the most wise thing. See the release post of DA RC. I just posted in there.Seems that the OS versions have older versions of curl present then currently used by DA custombuild. cjd Verified User #7 @ps4all For Debian I routinely use backports repo to get newer versions of some applications, in most cases they are an acceptable version, but they won't be the latest, as long as they are patched i'm fine with not having the latest versions. (eg: Debian 11 curl is 7.74.0-1.3+deb11u2, bullseye-backports has 7.85.0-1~bpo11+1 at this time.) #8 curl from OS, it will patch directly from distro but it show version likely "7.61.1-XX". "XX" will be version update of distro.for more detail, see changelog section #9 curl from OS, it will patch directly from distro but it show version likely "7.61.1-XX". Normally yes but when you execute the -V command you se this:curl 7.61.1 (x86_64-redhat-linux-gnu) libcurl/7.61.1 OpenSSL/1.1.1k zlib/1.2.11 brotli/1.0.6 libidn2/2.2.0 libpsl/0.20.2 (+libidn2/2.2.0) libssh/0.9.6/openssl/zlib nghttp2/1.33.0>>>>Release-Date: 2018-09-05-25 mentioned>>>>>But in the changelog they mention as latest backported 7.61.1. version :2022-06-29 - Kamil Dudka [email protected]> - 7.61.1-25- setopt: enable CURLOPT_SSH_KNOWNHOSTS and CURLOPT_SSH_KEYFUNCTION (#2063703)- fix HTTP compression denial of service (CVE-2022-32206)- fix FTP-KRB bad message verification (CVE-2022-32208)So there is some confusion here , It is an good idea to keep the cURL managed by CB instead of OS #10 I just noticed this..... What is the reasoning here? I know both will install in the same paths (I assume), but if it ain't broken, don't try to fix it.Has someone from the cPanel team joined JBMC?! /sEdit: Just noticed CB does an apt/yum now before compile.... Hmmm #11 @ps4all For Debian I routinely use backports repo to get newer versions of some applications, in most cases they are an acceptable version, but they won't be the latest, as long as they are patched i'm fine with not having the latest. Download a file with cURL. 1. Curl download file from command line. 1. How to wget/curl past a redirect to download content? 2. Piping wget into curl. 0. How to Set up curl Download ftp directory content from 1000 genomes data-1. Curl download all files in a directory. Related. 1. trying to use curl to download a series of files. 2. cURL download

curl-7.79.1-1.amzn2.0.1.x86_64.rpm Amazon Linux 2 Download

GET request method and will not download the body of the HTTP response message. Curl GET HTTP headers example curl -I Getting JSON using Curl To receive data in JSON format with Curl, you must pass the "Accept: application/json" HTTP header to the server. If you do not pass this header, the server may automatically choose your client's most appropriate data type and return the data in a different format. The following is an example of getting JSON from a ReqBin echo URL: Curl GET JSON example curl -H "Accept: application/json" Checking if the target URL supports HTTP/2 using Curl To check if the target URL supports HTTP/2 using Curl, you can send a Curl HEAD request along with the --http2 command line parameter. Curl HTTP/2 support check curl -I --http2 In the response, you will see the HTTP/2 200 status line if your server supports the HTTP/2 protocol or HTTP/1.1 200 otherwise. Sending cookies along with a GET request using Curl You can send cookies to the server using the -b command-line option followed by a string with the cookie or the name of the file containing the cookies. Curl GET Request Example with Cookies curl -b "session=eJwlzj0wMQG7eO4Q" Getting a specific range of bytes from a resource using Curl To get a specific range of resource bytes from a target URL using Curl, you can use the -r command line option. Curl example to get a specific range of bytes curl -r 0-15000 Limiting the maximum transfer rate for Curl GET requests You can use the-- limit-rate command line option to limit the maximum transfer rate for uploading and downloading files in Curl. By default, the speed is measured in bytes per second, but you can specify the speed in kilobytes (K), megabytes (M), or gigabytes (G) using a

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User8529

Hi @bagderI am using curl with --http3-only option to download file from nginx server.From below curl man page and help page i came to know that using --http3 will allow to fall back ,--http3-only will not allow to fallback but seems to be with --http3-only also curl is falling back and using http1.1man curl:---http3-onlysion on its own. Use --http3 for similar functionality with a fallback.Instructs curl to use HTTP/3 to the host in the URL, with no fallback to earlier HTTP versions.This option will make curl fail if a QUIC connection cannot be established, it will not attempt any other HTTP version on its own --http3 Use --http3-only for similar functionality without a fallback.Tells curl to try HTTP/3 to the host in the URL, but fallback to earlier HTTP versions if the HTTP/3 connection establishment failscurl --help all :---http3 Use HTTP v3--http3-only Use HTTP v3 onlyroot@ubuntu:~# curl -# -v -k --http3-only -o index.html 127.0.0.1:443...Connected to 127.0.0.1 (127.0.0.1) port 443 (#0)ALPN: offers http/1.1} [5 bytes data]TLSv1.3 (OUT), TLS handshake, Client hello (1):} [512 bytes data]TLSv1.3 (IN), TLS handshake, Server hello (2):{ [88 bytes data]TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):} [1 bytes data]TLSv1.3 (OUT), TLS handshake, Client hello (1):} [512 bytes data]TLSv1.3 (IN), TLS handshake, Server hello (2):{ [155 bytes data]TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):{ [21 bytes data]TLSv1.3 (IN), TLS handshake, Certificate (11):{ [768 bytes data]TLSv1.3 (IN), TLS handshake, CERT verify (15):{ [264 bytes data]TLSv1.3 (IN), TLS handshake, Finished (20):{ [52 bytes data]TLSv1.3 (OUT), TLS handshake, Finished

2025-03-26
User6970

CURL is an extremely powerful command line tool used to transfer data with URL syntax. Known for its versatility, flexibility and ubiquity, curl allows you to quickly interact with web servers, APIs, and services from the comfort of your terminal.While most Linux distributions ship with a version of curl pre-installed, it is often dated and lacks recently added capabilities. As a data scientist and infrastructure engineer with over 10 years of experience building and deploying analytical pipelines, I highly recommend compiling the latest curl from source. Doing so provides you access to new features, security enhancements, performance improvements and support for cutting-edge protocols that can supercharge your data projects.In this comprehensive, 2845+ word guide, you‘ll learn how to build the most up-to-date curl from source code on both CentOS/RHEL and Ubuntu systems. I provide unique expert insights optimized specifically for data analytics use cases across the entire installation process.Why Compile the Latest curl for Data Tasks?Here are some key reasons why installing curl from source is advantageous for data tasks:Faster Data Transfer : New protocols like HTTP/3, FTP3 provide upto 2x speed improvements for moving datasets across endpoints.Accelerated Model Serving: HTTP/3‘s QUIC transport minimizes latency between API and ML model servers via connection migration.Reproducible Pipelines: Version pinning and lockfiles prevent unplanned breakages across vast data ecosystems. Enhanced Debugging : Gain visibility into all network events when transferring petabyte-scale data.Reduced Downtime: Regular updates close security loopholes that may interrupt analytical workflows.Granular Control: Fine-tune and customize curl to best suit your specific data infrastructure needs.Clearly, having full control over the curl build process enables availing new capabilities to supercharge your AI/analytics pipelines through maximized speed, security and reproducibility.Prerequisites for Optimized Data ProcessingWe‘ll be building the latest curl 7.67.0 released on Jan 15, 2020 at the time of writing. For optimized data processing ensure your system meets these requirements:CentOS/RHELUse the latest CentOS 8.x/RHEL 8.x distribution:$ uname -r4.18.0-305.el8.x86_64GCC 10+ compiler: Enables advanced optimizations Fast NVMe storage: Speeds up build I/O 8 GB RAM: Cater to high memory buildsMulti-core CPU: Leverage parallelismUbuntuUbuntu 22.04 LTS or later:$ uname -r 5.15.0-52-genericSimilar fast storage, ample RAM and multi-core resources recommended.Now let‘s get building!Step 1 – Download Using Fastest MirrorAlways download source tarballs from the fastest available mirror near you leveraging utilities like netselect-apt for accelerated transfers:$ netselect-apt get the archive:$ wget -c $(netselect-apt checksums match for integrity assurance. Corrupted downloads can severely impact build reproducibility.Step 2 – Extract

2025-04-11
User6574

I have a file that has all the urls from which I need to download. However I need to limit one download at a time.i.e. the next download should begin only once previous one is finished.Is this possible using curl? Or should I use anything else. Stephane6,4723 gold badges28 silver badges48 bronze badges asked Sep 20, 2013 at 7:17 1 xargs -n 1 curl -O answered Sep 16, 2015 at 22:48 GrumdrigGrumdrig4915 silver badges10 bronze badges 3 wget(1) works sequentally by default, and has this option built in: -i file --input-file=file Read URLs from a local or external file. If - is specified as file, URLs are read from the standard input. (Use ./- to read from a file literally named -.) If this function is used, no URLs need be present on the command line. If there are URLs both on the command line and in an input file, those on the command lines will be the first ones to be retrieved. If --force-html is not specified, then file should consist of a series of URLs, one per line. However, if you specify --force-html, the document will be regarded as html. In that case you may have problems with relative links, which you can solve either by adding "" to the documents or by specifying --base=url on the command line. If the file is an external one, the document will be automatically treated as html if the Content-Type matches text/html. Furthermore, the file's location will be implicitly used as base href if none was specified. answered Sep 20, 2013 at 8:40 dawuddawud15.5k4 gold badges44 silver badges62 bronze badges 1 This is possible using curl within a shell script, something like this but you'll need to research appropriate options for curl etc for yourselfwhile read URL curl some options $URL if required check exit status take appropriate actiondone answered Sep 20, 2013 at 7:26 user9517user9517117k20 gold badges222 silver badges306 bronze badges 3 Based on @iain answer, but using proper shell scripting -while read url; do echo "== $url ==" curl -sL -O "$url"done Will also work with weird characters like

2025-04-14
User5964

NoticeThe URL of the result image is valid for 1 hour. Please download the image file promptly.Supported ImagesFormatResolutionFile sizejpg, jpeg, bmp, png, webp, tiff, tif, bitmap, raw, rgb, jfif, lzwUp to 4096 x 4096Up to 15MBGet StartedSee differences between the 3 API call types #Create a task.curl -k ' \-H 'X-API-KEY: YOUR_API_KEY' \-F 'sync=0' \-F 'image_url=YOU_IMG_URL'#Get the cutout result#Polling requests using the following methods 1. The polling interval is set to 1 second, 2. The polling time does not exceed 30 secondscurl -k ' \-H 'X-API-KEY: YOUR_API_KEY' \php//Create a task$curl = curl_init();curl_setopt($curl, CURLOPT_URL, ' CURLOPT_HTTPHEADER, array( "X-API-KEY: YOUR_API_KEY", "Content-Type: multipart/form-data",));curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);curl_setopt($curl, CURLOPT_POST, true);curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($curl, CURLOPT_POSTFIELDS, array('sync' => 0, 'image_url' => "YOUR_IMG_URL"));$response = curl_exec($curl);$result = curl_errno($curl) ? curl_error($curl) : $response;curl_close($curl);$result = json_decode($result, true);if ( !isset($result["status"]) || $result["status"] != 200 ) { // request failed, log the details var_dump($result); die("post request failed");}// var_dump($result);$task_id = $result["data"]["task_id"];//get the task result// 1、"The polling interval is set to 1 second."//2 "The polling time is around 30 seconds."for ($i = 1; $i 30; $i++) { if ($i != 1) { sleep(1); } $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, " curl_setopt($curl, CURLOPT_HTTPHEADER, array( "X-API-KEY: YOUR_API_KEY", )); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); $response = curl_exec($curl); $result = curl_errno($curl) ? curl_error($curl) : $response; curl_close($curl); var_dump($result); $result = json_decode($result, true); if ( !isset($result["status"]) || $result["status"] != 200 ) { // Task exception, logging the error. //You can choose to continue the loop with 'continue' or break the loop with 'break' var_dump($result); continue; } if ( $result["data"]["state"] == 1 ) { // task success var_dump($result["data"]["image"]); break; } else if ( $result["data"]["state"] 0) { // request failed, log the details var_dump($result); break; } else { // Task processing if ($i == 30) { //Task processing, abnormal situation, seeking assistance from customer service of picwish } }}public static void main(String[] args) throws Exception { String taskId = createTask(); String result = pollingTaskResult(taskId, 0); System.out.println(result);}private static String createTask() throws Exception { OkHttpClient okHttpClient = new OkHttpClient.Builder().build(); RequestBody requestBody = new MultipartBody.Builder() .setType(MultipartBody.FORM) .addFormDataPart("image_url", "IMAGE_HTTP_URL") .addFormDataPart("sync", "0") .build(); Request request = new Request.Builder() .url(" .addHeader("X-API-KEY", "YOUR_API_KEY") .post(requestBody) .build(); Response response = okHttpClient.newCall(request).execute(); JSONObject jsonObject = new JSONObject(response.body().string()); int status = jsonObject.optInt("status"); if (status != 200) { throw new Exception(jsonObject.optString("message")); } return jsonObject.getJSONObject("data").optString("task_id");}private static String pollingTaskResult(String taskId, int pollingTime) throws Exception { if (pollingTime >= 30) throw new IllegalStateException("Polling result timeout."); OkHttpClient okHttpClient = new OkHttpClient.Builder().build(); Request taskRequest = new Request.Builder() .url(" + taskId) .addHeader("X-API-KEY", "YOUR_API_KEY") .get() .build(); Response taskResponse = okHttpClient.newCall(taskRequest).execute(); JSONObject jsonObject = new JSONObject(taskResponse.body().string()); int state = jsonObject.getJSONObject("data").optInt("state"); if (state 0) { // Error. throw new Exception(jsonObject.optString("message")); } if (state == 1) { // Success and get result. return jsonObject.getJSONObject("data").toString(); } Thread.sleep(1000); return pollingTaskResult(taskId, ++pollingTime);}const request = require("request");const fs = require("fs");const path = require('path')const API_KEY = "YOUR_API_KEY";(async function main() { const taskId = await createTask() const result = await polling(() => getTaskResult(taskId)) console.log(`result: ${JSON.stringify(result, null, 2)}`)})()const polling = async (fn, delay = 1 * 1000, timeout = 30 * 1000) => { if (!fn) { throw new Error('fn is required') } try

2025-03-30
User3766

目录 文章目录 目录 编译安装 YUM 升级 curl 常用选项 编译安装安装编译环境:yum -y groupinstall "Development Tools"yum -y install libev libev-devel zlib zlib-devel openssl openssl-devel git 1 2 安装 OpenSSL:mkdir /var/tmpcd /var/tmpwget -zxf openssl-1.0.2.tar.gzcd openssl-1.0.2mkdir /opt/openssl./config --prefix=/opt/opensslmakemake testmake install 1 2 3 4 5 6 7 8 9 10 安装 nghttp2:git clone nghttp2autoreconf -iautomakeautoconf./configuremakemake installecho '/usr/local/lib' > /etc/ld.so.conf.d/custom-libs.confldconfigldconfig -p| grep libnghttp2 1 2 3 4 5 6 7 8 9 10 11 安装 curl:cd /var/tmpgit clone curl./buildconf./configure --with-ssl=/opt/openssl --with-nghttp2=/usr/local --disable-file --without-pic --disable-sharedmake 1 2 3 4 5 6 验证:$ /var/tmp/curl/src/curl --versioncurl 7.70.0-DEV (x86_64-unknown-linux-gnu) libcurl/7.70.0-DEV OpenSSL/1.0.2o nghttp2/1.41.0-DEVRelease-Date: [unreleased]Protocols: dict ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftpFeatures: AsynchDNS HTTP2 HTTPS-proxy IPv6 Largefile NTLM NTLM_WB SSL TLS-SRP UnixSockets 1 2 3 4 5 注意:curl 从 7.52.0 版本开始也已经支持 TLS 1.3 了,curl 7.61.0 及以上在 TLS 握手过程中协商 TLS 版本时,curl 默认使用 TLS 1.3,但也取决于 curl 正在使用的 TLS 库及其版本,例如:要求 OpenSSL 1.1.1 版本以上。YUM 升级安装新版 libcurl 的 yum 源:rpm -ivh 1 升级:yum upgrade libcurl 1 升级完成后可以卸载此 yum 源:rpm -e city-fan.org-release 1 curl 常用选项语法格式: curl [options] [URL...]常用选项如下所示: -A/--user-agent : 设置用户代理发送给服务器 -e/--referer : 来源网址 --cacert : CA 证书(SSL) -k/--insecure: 允许忽略证书进行 SSL 连接 --compressed: 要求返回是压缩的格式 -H/--header : 自定义首部信息传递给服务器 -i: 显示页面内容,包括报文首部信息 -I/--head: 只显示响应报文首部信息 -D/--dump-header : 将 URL 的 header 信息存放在指定文件中 --basic: 使用 HTTP 基本认证 -u/--user : 设置服务器的用户和密码 -L: 如果有 3xx 响应码,重新发请求到新位置 -O: 使用 URL 中默认的文件名保存文件到本地 -o : 将网络文件保存为指定的文件中 --limit-rate : 设置传输速度 -0/--http1.0: 数字 0,使用 HTTP 1.0 -v/--verbose: 更详细 -C: 选项可对文件使用断点续传功能 -c/--cookie-jar : 将 URL 中 Cookie 存放在指定文件中 -x/--proxy : 指定代理服务器地址 -X/--request : 向服务器发送指定请求方法 -U/--proxy-user : 代理服务器用户和密码 -T: 选项可将指定的本地文件上传到 FTP 服务器上 --data/-d: 方式指定使用 POST 方式传递数据 -b name=data: 从服务器响应 set-cookie 得到值,返回给服务器 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 文章来源: is-cloud.blog.csdn.net,作者:范桂飓,版权归原作者所有,如需转载,请联系作者。原文链接:is-cloud.blog.csdn.net/article/details/105695093 【版权声明】本文为华为云社区用户转载文章,如果您发现本社区中有涉嫌抄袭的内容,欢迎发送邮件进行举报,并提供相关证据,一经查实,本社区将立刻删除涉嫌侵权内容,举报邮箱: cloudbbs@huaweicloud.com

2025-04-03

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