<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>URL Manipulation (GNU Octave (version 5.1.0))</title> <meta name="description" content="URL Manipulation (GNU Octave (version 5.1.0))"> <meta name="keywords" content="URL Manipulation (GNU Octave (version 5.1.0))"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <link href="index.html#Top" rel="start" title="Top"> <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Networking-Utilities.html#Networking-Utilities" rel="up" title="Networking Utilities"> <link href="Base64-and-Binary-Data-Transmission.html#Base64-and-Binary-Data-Transmission" rel="next" title="Base64 and Binary Data Transmission"> <link href="FTP-Objects.html#FTP-Objects" rel="prev" title="FTP Objects"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> <link rel="stylesheet" type="text/css" href="octave.css"> </head> <body lang="en"> <a name="URL-Manipulation"></a> <div class="header"> <p> Next: <a href="Base64-and-Binary-Data-Transmission.html#Base64-and-Binary-Data-Transmission" accesskey="n" rel="next">Base64 and Binary Data Transmission</a>, Previous: <a href="FTP-Objects.html#FTP-Objects" accesskey="p" rel="prev">FTP Objects</a>, Up: <a href="Networking-Utilities.html#Networking-Utilities" accesskey="u" rel="up">Networking Utilities</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="URL-Manipulation-1"></a> <h4 class="subsection">36.4.2 URL Manipulation</h4> <a name="XREFurlread"></a><dl> <dt><a name="index-urlread"></a><em><var>s</var> =</em> <strong>urlread</strong> <em>(<var>url</var>)</em></dt> <dt><a name="index-urlread-1"></a><em>[<var>s</var>, <var>success</var>] =</em> <strong>urlread</strong> <em>(<var>url</var>)</em></dt> <dt><a name="index-urlread-2"></a><em>[<var>s</var>, <var>success</var>, <var>message</var>] =</em> <strong>urlread</strong> <em>(<var>url</var>)</em></dt> <dt><a name="index-urlread-3"></a><em>[…] =</em> <strong>urlread</strong> <em>(<var>url</var>, <var>method</var>, <var>param</var>)</em></dt> <dd><p>Download a remote file specified by its <var>url</var> and return its content in string <var>s</var>. </p> <p>For example: </p> <div class="example"> <pre class="example">s = urlread ("ftp://ftp.octave.org/pub/README"); </pre></div> <p>The variable <var>success</var> is 1 if the download was successful, otherwise it is 0 in which case <var>message</var> contains an error message. </p> <p>If no output argument is specified and an error occurs, then the error is signaled through Octave’s error handling mechanism. </p> <p>This function uses libcurl. Curl supports, among others, the HTTP, FTP, and FILE protocols. Username and password may be specified in the URL. For example: </p> <div class="example"> <pre class="example">s = urlread ("http://user:password@example.com/file.txt"); </pre></div> <p>GET and POST requests can be specified by <var>method</var> and <var>param</var>. The parameter <var>method</var> is either ‘<samp>get</samp>’ or ‘<samp>post</samp>’ and <var>param</var> is a cell array of parameter and value pairs. For example: </p> <div class="example"> <pre class="example">s = urlread ("http://www.google.com/search", "get", {"query", "octave"}); </pre></div> <p><strong>See also:</strong> <a href="#XREFurlwrite">urlwrite</a>. </p></dd></dl> <a name="XREFurlwrite"></a><dl> <dt><a name="index-urlwrite"></a><em></em> <strong>urlwrite</strong> <em>(<var>url</var>, <var>localfile</var>)</em></dt> <dt><a name="index-urlwrite-1"></a><em><var>f</var> =</em> <strong>urlwrite</strong> <em>(<var>url</var>, <var>localfile</var>)</em></dt> <dt><a name="index-urlwrite-2"></a><em>[<var>f</var>, <var>success</var>] =</em> <strong>urlwrite</strong> <em>(<var>url</var>, <var>localfile</var>)</em></dt> <dt><a name="index-urlwrite-3"></a><em>[<var>f</var>, <var>success</var>, <var>message</var>] =</em> <strong>urlwrite</strong> <em>(<var>url</var>, <var>localfile</var>)</em></dt> <dd><p>Download a remote file specified by its <var>url</var> and save it as <var>localfile</var>. </p> <p>For example: </p> <div class="example"> <pre class="example">urlwrite ("ftp://ftp.octave.org/pub/README", "README.txt"); </pre></div> <p>The full path of the downloaded file is returned in <var>f</var>. </p> <p>The variable <var>success</var> is 1 if the download was successful, otherwise it is 0 in which case <var>message</var> contains an error message. </p> <p>If no output argument is specified and an error occurs, then the error is signaled through Octave’s error handling mechanism. </p> <p>This function uses libcurl. Curl supports, among others, the HTTP, FTP, and FILE protocols. Username and password may be specified in the URL, for example: </p> <div class="example"> <pre class="example">urlwrite ("http://username:password@example.com/file.txt", "file.txt"); </pre></div> <p>GET and POST requests can be specified by <var>method</var> and <var>param</var>. The parameter <var>method</var> is either ‘<samp>get</samp>’ or ‘<samp>post</samp>’ and <var>param</var> is a cell array of parameter and value pairs. For example: </p> <div class="example"> <pre class="example">urlwrite ("http://www.google.com/search", "search.html", "get", {"query", "octave"}); </pre></div> <p><strong>See also:</strong> <a href="#XREFurlread">urlread</a>. </p></dd></dl> <hr> <div class="header"> <p> Next: <a href="Base64-and-Binary-Data-Transmission.html#Base64-and-Binary-Data-Transmission" accesskey="n" rel="next">Base64 and Binary Data Transmission</a>, Previous: <a href="FTP-Objects.html#FTP-Objects" accesskey="p" rel="prev">FTP Objects</a>, Up: <a href="Networking-Utilities.html#Networking-Utilities" accesskey="u" rel="up">Networking Utilities</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> </body> </html>