320 lines
17 KiB
HTML
320 lines
17 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<!-- Created by GNU Texinfo 7.1, https://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<!-- This manual documents Guile version 3.0.10.
|
|
|
|
Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
|
|
Inc.
|
|
|
|
Copyright (C) 2021 Maxime Devos
|
|
|
|
Copyright (C) 2024 Tomas Volf
|
|
|
|
|
|
Permission is granted to copy, distribute and/or modify this document
|
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
|
any later version published by the Free Software Foundation; with no
|
|
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
|
|
copy of the license is included in the section entitled "GNU Free
|
|
Documentation License." -->
|
|
<title>Command-line Options (Guile Reference Manual)</title>
|
|
|
|
<meta name="description" content="Command-line Options (Guile Reference Manual)">
|
|
<meta name="keywords" content="Command-line Options (Guile Reference Manual)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content=".texi2any-real">
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
|
|
<link href="index.html" rel="start" title="Top">
|
|
<link href="Concept-Index.html" rel="index" title="Concept Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Invoking-Guile.html" rel="up" title="Invoking Guile">
|
|
<link href="Environment-Variables.html" rel="next" title="Environment Variables">
|
|
<style type="text/css">
|
|
<!--
|
|
a.copiable-link {visibility: hidden; text-decoration: none; line-height: 0em}
|
|
div.example {margin-left: 3.2em}
|
|
kbd.kbd {font-style: oblique}
|
|
span.r {font-family: initial; font-weight: normal; font-style: normal}
|
|
span:hover a.copiable-link {visibility: visible}
|
|
-->
|
|
</style>
|
|
<link rel="stylesheet" type="text/css" href="https://www.gnu.org/software/gnulib/manual.css">
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<div class="subsection-level-extent" id="Command_002dline-Options">
|
|
<div class="nav-panel">
|
|
<p>
|
|
Next: <a href="Environment-Variables.html" accesskey="n" rel="next">Environment Variables</a>, Up: <a href="Invoking-Guile.html" accesskey="u" rel="up">Invoking Guile</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<h4 class="subsection" id="Command_002dline-Options-1"><span>4.2.1 Command-line Options<a class="copiable-link" href="#Command_002dline-Options-1"> ¶</a></span></h4>
|
|
<a class="index-entry-id" id="index-Command_002dline-Options"></a>
|
|
<a class="index-entry-id" id="index-command_002dline-arguments"></a>
|
|
<a class="index-entry-id" id="index-arguments-_0028command-line_0029"></a>
|
|
<a class="index-entry-id" id="index-options-_0028command-line_0029"></a>
|
|
<a class="index-entry-id" id="index-switches-_0028command-line_0029"></a>
|
|
<a class="index-entry-id" id="index-startup-_0028command_002dline-arguments_0029"></a>
|
|
<a class="index-entry-id" id="index-invocation-_0028command_002dline-arguments_0029"></a>
|
|
|
|
<p>Here we describe Guile’s command-line processing in detail. Guile
|
|
processes its arguments from left to right, recognizing the switches
|
|
described below. For examples, see <a class="ref" href="Scripting-Examples.html">Scripting Examples</a>.
|
|
</p>
|
|
<dl class="table">
|
|
<dt><a id="index-script-mode"></a><span><code class="code"><var class="var">script</var> <var class="var">arg...</var></code><a class="copiable-link" href="#index-script-mode"> ¶</a></span></dt>
|
|
<dt><code class="code">-s <var class="var">script</var> <var class="var">arg...</var></code></dt>
|
|
<dd><p>By default, Guile will read a file named on the command line as a
|
|
script. Any command-line arguments <var class="var">arg...</var> following <var class="var">script</var>
|
|
become the script’s arguments; the <code class="code">command-line</code> function returns
|
|
a list of strings of the form <code class="code">(<var class="var">script</var> <var class="var">arg...</var>)</code>.
|
|
</p>
|
|
<p>It is possible to name a file using a leading hyphen, for example,
|
|
<samp class="file">-myfile.scm</samp>. In this case, the file name must be preceded by
|
|
<samp class="option">-s</samp> to tell Guile that a (script) file is being named.
|
|
</p>
|
|
<p>Scripts are read and evaluated as Scheme source code just as the
|
|
<code class="code">load</code> function would. After loading <var class="var">script</var>, Guile exits.
|
|
</p>
|
|
</dd>
|
|
<dt><a id="index-evaluate-expression_002c-command_002dline-argument"></a><span><code class="code">-c <var class="var">expr</var> <var class="var">arg...</var></code><a class="copiable-link" href="#index-evaluate-expression_002c-command_002dline-argument"> ¶</a></span></dt>
|
|
<dd><p>Evaluate <var class="var">expr</var> as Scheme code, and then exit. Any command-line
|
|
arguments <var class="var">arg...</var> following <var class="var">expr</var> become command-line
|
|
arguments; the <code class="code">command-line</code> function returns a list of strings of
|
|
the form <code class="code">(<var class="var">guile</var> <var class="var">arg...</var>)</code>, where <var class="var">guile</var> is the
|
|
path of the Guile executable.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-- <var class="var">arg...</var></code></dt>
|
|
<dd><p>Run interactively, prompting the user for expressions and evaluating
|
|
them. Any command-line arguments <var class="var">arg...</var> following the <samp class="option">--</samp>
|
|
become command-line arguments for the interactive session; the
|
|
<code class="code">command-line</code> function returns a list of strings of the form
|
|
<code class="code">(<var class="var">guile</var> <var class="var">arg...</var>)</code>, where <var class="var">guile</var> is the path of the
|
|
Guile executable.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-L <var class="var">directory</var></code></dt>
|
|
<dd><p>Add <var class="var">directory</var> to the front of Guile’s module load path. The given
|
|
directories are searched in the order given on the command line and
|
|
before any directories in the <code class="env">GUILE_LOAD_PATH</code> environment
|
|
variable. Paths added here are <em class="emph">not</em> in effect during execution of
|
|
the user’s <samp class="file">.guile</samp> file.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-C <var class="var">directory</var></code></dt>
|
|
<dd><p>Like <samp class="option">-L</samp>, but adjusts the load path for <em class="emph">compiled</em> files.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-x <var class="var">extension</var></code></dt>
|
|
<dd><p>Add <var class="var">extension</var> to the front of Guile’s load extension list
|
|
(see <a class="pxref" href="Load-Paths.html"><code class="code">%load-extensions</code></a>). The specified extensions
|
|
are tried in the order given on the command line, and before the default
|
|
load extensions. Extensions added here are <em class="emph">not</em> in effect during
|
|
execution of the user’s <samp class="file">.guile</samp> file.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-l <var class="var">file</var></code></dt>
|
|
<dd><p>Load Scheme source code from <var class="var">file</var>, and continue processing the
|
|
command line.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-e <var class="var">function</var></code></dt>
|
|
<dd><p>Make <var class="var">function</var> the <em class="dfn">entry point</em> of the script. After loading
|
|
the script file (with <samp class="option">-s</samp>) or evaluating the expression (with
|
|
<samp class="option">-c</samp>), apply <var class="var">function</var> to a list containing the program name
|
|
and the command-line arguments—the list provided by the
|
|
<code class="code">command-line</code> function.
|
|
</p>
|
|
<p>A <samp class="option">-e</samp> switch can appear anywhere in the argument list, but Guile
|
|
always invokes the <var class="var">function</var> as the <em class="emph">last</em> action it performs.
|
|
This is weird, but because of the way script invocation works under
|
|
POSIX, the <samp class="option">-s</samp> option must always come last in the list.
|
|
</p>
|
|
<p>The <var class="var">function</var> is most often a simple symbol that names a function
|
|
that is defined in the script. It can also be of the form <code class="code">(@
|
|
<var class="var">module-name</var> <var class="var">symbol</var>)</code>, and in that case, the symbol is
|
|
looked up in the module named <var class="var">module-name</var>.
|
|
</p>
|
|
<p>As a shorthand you can use the form <code class="code">(symbol ...)</code>, that is, a list
|
|
of only symbols that doesn’t start with <code class="code">@</code>. It is equivalent to
|
|
<code class="code">(@ <var class="var">module-name</var> main)</code>, where <var class="var">module-name</var> is
|
|
<code class="code">(symbol ...)</code> form. See <a class="xref" href="Using-Guile-Modules.html">Using Guile Modules</a> and <a class="ref" href="Scripting-Examples.html">Scripting Examples</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-ds</code></dt>
|
|
<dd><p>Treat a final <samp class="option">-s</samp> option as if it occurred at this point in the
|
|
command line; load the script here.
|
|
</p>
|
|
<p>This switch is necessary because, although the POSIX script invocation
|
|
mechanism effectively requires the <samp class="option">-s</samp> option to appear last, the
|
|
programmer may well want to run the script before other actions
|
|
requested on the command line. For examples, see <a class="ref" href="Scripting-Examples.html">Scripting Examples</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">\</code></dt>
|
|
<dd><p>Read more command-line arguments, starting from the second line of the
|
|
script file. See <a class="xref" href="The-Meta-Switch.html">The Meta Switch</a>.
|
|
</p>
|
|
</dd>
|
|
<dt><a id="index-loading-srfi-modules-_0028command-line_0029"></a><span><code class="code">--use-srfi=<var class="var">list</var></code><a class="copiable-link" href="#index-loading-srfi-modules-_0028command-line_0029"> ¶</a></span></dt>
|
|
<dd><p>The option <samp class="option">--use-srfi</samp> expects a comma-separated list of numbers,
|
|
each representing a SRFI module to be loaded into the interpreter
|
|
before evaluating a script file or starting the REPL. Additionally,
|
|
the feature identifier for the loaded SRFIs is recognized by
|
|
the procedure <code class="code">cond-expand</code> when this option is used.
|
|
</p>
|
|
<p>Here is an example that loads the modules SRFI-8 (’receive’) and SRFI-13
|
|
(’string library’) before the GUILE interpreter is started:
|
|
</p>
|
|
<div class="example">
|
|
<pre class="example-preformatted">guile --use-srfi=8,13
|
|
</pre></div>
|
|
|
|
</dd>
|
|
<dt><a id="index-r6rs-_0028command-line_0029"></a><span><code class="code">--r6rs</code><a class="copiable-link" href="#index-r6rs-_0028command-line_0029"> ¶</a></span></dt>
|
|
<dd><p>Adapt Guile’s initial environment to better support R6RS. See <a class="xref" href="R6RS-Incompatibilities.html">Incompatibilities with the R6RS</a>, for some caveats.
|
|
</p>
|
|
</dd>
|
|
<dt><a id="index-r7rs-_0028command-line_0029"></a><span><code class="code">--r7rs</code><a class="copiable-link" href="#index-r7rs-_0028command-line_0029"> ¶</a></span></dt>
|
|
<dd><p>Adapt Guile’s initial environment to better support R7RS. See <a class="xref" href="R7RS-Incompatibilities.html">Incompatibilities with the R7RS</a>, for some caveats.
|
|
</p>
|
|
</dd>
|
|
<dt><a id="index-debugging-virtual-machine-_0028command-line_0029"></a><span><code class="code">--debug</code><a class="copiable-link" href="#index-debugging-virtual-machine-_0028command-line_0029"> ¶</a></span></dt>
|
|
<dd><p>Start with the debugging virtual machine (VM) engine. Using the
|
|
debugging VM will enable support for VM hooks, which are needed for
|
|
tracing, breakpoints, and accurate call counts when profiling. The
|
|
debugging VM is slower than the regular VM, though, by about ten
|
|
percent. See <a class="xref" href="VM-Hooks.html">VM Hooks</a>, for more information.
|
|
</p>
|
|
<p>By default, the debugging VM engine is only used when entering an
|
|
interactive session. When executing a script with <samp class="option">-s</samp> or
|
|
<samp class="option">-c</samp>, the normal, faster VM is used by default.
|
|
</p>
|
|
|
|
</dd>
|
|
<dt><a id="index-debugging-virtual-machine-_0028command-line_0029-1"></a><span><code class="code">--no-debug</code><a class="copiable-link" href="#index-debugging-virtual-machine-_0028command-line_0029-1"> ¶</a></span></dt>
|
|
<dd><p>Do not use the debugging VM engine, even when entering an interactive
|
|
session.
|
|
</p>
|
|
<p>Note that, despite the name, Guile running with <samp class="option">--no-debug</samp>
|
|
<em class="emph">does</em> support the usual debugging facilities, such as printing a
|
|
detailed backtrace upon error. The only difference with
|
|
<samp class="option">--debug</samp> is lack of support for VM hooks and the facilities that
|
|
build upon it (see above).
|
|
</p>
|
|
</dd>
|
|
<dt><a class="index-entry-id" id="index-_002eguile-file_002c-not-loading"></a>
|
|
<a id="index-init-file_002c-not-loading"></a><span><code class="code">-q</code><a class="copiable-link" href="#index-init-file_002c-not-loading"> ¶</a></span></dt>
|
|
<dd><p>Do not load the initialization file, <samp class="file">.guile</samp>. This option only
|
|
has an effect when running interactively; running scripts does not load
|
|
the <samp class="file">.guile</samp> file. See <a class="xref" href="Init-File.html">The Init File, <samp class="file">~/.guile</samp></a>.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">--listen[=<var class="var">p</var>]</code></dt>
|
|
<dd><p>While this program runs, listen on a local port or a path for REPL
|
|
clients. If <var class="var">p</var> starts with a number, it is assumed to be a local
|
|
port on which to listen. If it starts with a forward slash, it is
|
|
assumed to be the file name of a UNIX domain socket on which to listen.
|
|
</p>
|
|
<p>If <var class="var">p</var> is not given, the default is local port 37146. If you look
|
|
at it upside down, it almost spells “Guile”. If you have netcat
|
|
installed, you should be able to <kbd class="kbd">nc localhost 37146</kbd> and get a
|
|
Guile prompt. Alternately you can fire up Emacs and connect to the
|
|
process; see <a class="ref" href="Using-Guile-in-Emacs.html">Using Guile in Emacs</a> for more details.
|
|
</p>
|
|
<blockquote class="quotation">
|
|
<p><b class="b">Note:</b> Opening a port allows anyone who can connect to that port to do anything
|
|
Guile can do, as the user
|
|
that the Guile process is running as. Do not use <samp class="option">--listen</samp> on
|
|
multi-user machines. Of course, if you do not pass <samp class="option">--listen</samp> to
|
|
Guile, no port will be opened.
|
|
</p>
|
|
<p>Guile protects against the
|
|
<a class="uref" href="https://en.wikipedia.org/wiki/Inter-protocol_exploitation"><em class="dfn">HTTP inter-protocol exploitation attack</em></a>, a scenario whereby an
|
|
attacker can, <i class="i">via</i> an HTML page, cause a web browser to send data to
|
|
TCP servers listening on a loopback interface or private network.
|
|
Nevertheless, you are advised to use UNIX domain sockets, as in
|
|
<code class="code">--listen=/some/local/file</code>, whenever possible.
|
|
</p></blockquote>
|
|
|
|
<p>That said, <samp class="option">--listen</samp> is great for interactive debugging and
|
|
development.
|
|
</p>
|
|
|
|
|
|
</dd>
|
|
<dt><code class="code">--auto-compile</code></dt>
|
|
<dd><p>Compile source files automatically (default behavior).
|
|
</p>
|
|
|
|
|
|
</dd>
|
|
<dt><code class="code">--fresh-auto-compile</code></dt>
|
|
<dd><p>Treat the auto-compilation cache as invalid, forcing recompilation.
|
|
</p>
|
|
|
|
|
|
</dd>
|
|
<dt><code class="code">--no-auto-compile</code></dt>
|
|
<dd><p>Disable automatic source file compilation.
|
|
</p>
|
|
|
|
|
|
</dd>
|
|
<dt><code class="code">--language=<var class="var">lang</var></code></dt>
|
|
<dd><p>For the remainder of the command line arguments, assume that files
|
|
mentioned with <code class="code">-l</code> and expressions passed with <code class="code">-c</code> are
|
|
written in <var class="var">lang</var>. <var class="var">lang</var> must be the name of one of the
|
|
languages supported by the compiler (see <a class="pxref" href="Compiler-Tower.html">Compiler Tower</a>). When run
|
|
interactively, set the REPL’s language to <var class="var">lang</var> (see <a class="pxref" href="Using-Guile-Interactively.html">Using Guile Interactively</a>).
|
|
</p>
|
|
<p>The default language is <code class="code">scheme</code>; other interesting values include
|
|
<code class="code">elisp</code> (for Emacs Lisp), and <code class="code">ecmascript</code>.
|
|
</p>
|
|
<p>The example below shows the evaluation of expressions in Scheme, Emacs
|
|
Lisp, and ECMAScript:
|
|
</p>
|
|
<div class="example">
|
|
<pre class="example-preformatted">guile -c "(apply + '(1 2))"
|
|
guile --language=elisp -c "(= (funcall (symbol-function '+) 1 2) 3)"
|
|
guile --language=ecmascript -c '(function (x) { return x * x; })(2);'
|
|
</pre></div>
|
|
|
|
<p>To load a file written in Scheme and one written in Emacs Lisp, and then
|
|
start a Scheme REPL, type:
|
|
</p>
|
|
<div class="example">
|
|
<pre class="example-preformatted">guile -l foo.scm --language=elisp -l foo.el --language=scheme
|
|
</pre></div>
|
|
|
|
|
|
|
|
</dd>
|
|
<dt><code class="code">-h<span class="r">, </span>--help</code></dt>
|
|
<dd><p>Display help on invoking Guile, and then exit.
|
|
</p>
|
|
</dd>
|
|
<dt><code class="code">-v<span class="r">, </span>--version</code></dt>
|
|
<dd><p>Display the current version of Guile, and then exit.
|
|
</p>
|
|
</dd>
|
|
</dl>
|
|
|
|
</div>
|
|
<hr>
|
|
<div class="nav-panel">
|
|
<p>
|
|
Next: <a href="Environment-Variables.html">Environment Variables</a>, Up: <a href="Invoking-Guile.html">Invoking Guile</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|