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<!DOCTYPE html>
<!--
| Generated by Apache Maven Doxia Site Renderer 1.11.1 from src/xdocs/cmdline.xml.vm at 2024-11-07
| Rendered using Apache Maven Default Skin
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="generator" content="Apache Maven Doxia Site Renderer 1.11.1" />
<title>checkstyle – Command Line</title>
<link rel="stylesheet" href="./css/maven-base.css" />
<link rel="stylesheet" href="./css/maven-theme.css" />
<link rel="stylesheet" href="./css/site.css" />
<link rel="stylesheet" href="./css/print.css" media="print" />
<script type="text/javascript" src="./js/checkstyle.js"></script>
<script type="text/javascript"
src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" src="./js/anchors.js"></script>
<script type="text/javascript" src="./js/google-analytics.js"></script>
<link rel="icon" href="./images/favicon.png" type="image/x-icon" />
<link rel="shortcut icon" href="./images/favicon.ico" type="image/ico" />
</head>
<body class="composite">
<div id="banner">
<a href="./" id="bannerLeft" title="Checkstyle"><img src="images/header-checkstyle-logo.png" alt="Checkstyle"/></a><a href="./" id="bannerRight" title="Checkstyle"><img src="images/header-right-ruller.png" alt="Checkstyle"/></a> <div class="clear">
<hr/>
</div>
</div>
<div id="breadcrumbs">
<div class="xright"><a href="" title="toTop">toTop</a> | <span id="publishDate">Last Published: 2024-11-07</span>
| <span id="projectVersion">Version: 10.20.1</span>
</div>
<div class="clear">
<hr/>
</div>
</div>
<div id="leftColumn">
<div id="navcolumn">
<h5>About</h5>
<ul>
<li class="none"><a href="index.html" title="Checkstyle">Checkstyle</a></li>
<li class="none"><a href="releasenotes.html" title="Release Notes">Release Notes</a></li>
<li class="none"><a href="consulting.html" title="Consulting">Consulting</a></li>
<li class="none"><a href="sponsoring.html" title="Sponsoring">Sponsoring</a></li>
</ul>
<h5>Documentation</h5>
<ul>
<li class="expanded"><a href="config.html" title="Configuration">Configuration</a>
<ul>
<li class="none"><a href="property_types.html" title="Property Types">Property Types</a></li>
<li class="none"><a href="config_system_properties.html" title="System Properties">System Properties</a></li>
</ul></li>
<li class="expanded"><a href="running.html" title="Running">Running</a>
<ul>
<li class="none"><a href="anttask.html" title="Ant Task">Ant Task</a></li>
<li class="none"><strong>Command Line</strong></li>
</ul></li>
<li class="expanded"><a href="checks.html" title="Checks">Checks</a>
<ul>
<li class="collapsed"><a href="checks/annotation/index.html" title="Annotations">Annotations</a></li>
<li class="collapsed"><a href="checks/blocks/index.html" title="Block Checks">Block Checks</a></li>
<li class="collapsed"><a href="checks/design/index.html" title="Class Design">Class Design</a></li>
<li class="collapsed"><a href="checks/coding/index.html" title="Coding">Coding</a></li>
<li class="collapsed"><a href="checks/header/index.html" title="Headers">Headers</a></li>
<li class="collapsed"><a href="checks/imports/index.html" title="Imports">Imports</a></li>
<li class="collapsed"><a href="checks/javadoc/index.html" title="Javadoc Comments">Javadoc Comments</a></li>
<li class="collapsed"><a href="checks/metrics/index.html" title="Metrics">Metrics</a></li>
<li class="collapsed"><a href="checks/misc/index.html" title="Miscellaneous">Miscellaneous</a></li>
<li class="collapsed"><a href="checks/modifier/index.html" title="Modifiers">Modifiers</a></li>
<li class="collapsed"><a href="checks/naming/index.html" title="Naming Conventions">Naming Conventions</a></li>
<li class="collapsed"><a href="checks/regexp/index.html" title="Regexp">Regexp</a></li>
<li class="collapsed"><a href="checks/sizes/index.html" title="Size Violations">Size Violations</a></li>
<li class="collapsed"><a href="checks/whitespace/index.html" title="Whitespace">Whitespace</a></li>
</ul></li>
<li class="collapsed"><a href="filters/index.html" title="Filters">Filters</a></li>
<li class="collapsed"><a href="filefilters/index.html" title="File Filters">File Filters</a></li>
<li class="expanded"><a href="style_configs.html" title="Style Configurations">Style Configurations</a>
<ul>
<li class="none"><a href="google_style.html" title="Google's Style">Google's Style</a></li>
<li class="none"><a href="sun_style.html" title="Sun's Style">Sun's Style</a></li>
</ul></li>
</ul>
<h5>Developers</h5>
<ul>
<li class="expanded"><a href="extending.html" title="Extending Checkstyle">Extending Checkstyle</a>
<ul>
<li class="none"><a href="writingchecks.html" title="Writing Checks">Writing Checks</a></li>
<li class="none"><a href="writingjavadocchecks.html" title="Writing Javadoc Checks">Writing Javadoc Checks</a></li>
<li class="none"><a href="writingfilters.html" title="Writing Filters">Writing Filters</a></li>
<li class="none"><a href="writingfilefilters.html" title="Writing File Filters">Writing File Filters</a></li>
<li class="none"><a href="writinglisteners.html" title="Writing Listeners">Writing Listeners</a></li>
</ul></li>
<li class="none"><a href="contributing.html" title="Contributing">Contributing</a></li>
<li class="expanded"><a href="beginning_development.html" title="Beginning Development">Beginning Development</a>
<ul>
<li class="none"><a href="eclipse.html" title="Eclipse IDE">Eclipse IDE</a></li>
<li class="none"><a href="netbeans.html" title="NetBeans IDE">NetBeans IDE</a></li>
<li class="none"><a href="idea.html" title="IntelliJ IDE">IntelliJ IDE</a></li>
</ul></li>
<li class="none"><a href="apidocs/index.html" title="Javadoc">Javadoc</a></li>
</ul>
<h5>Project Documentation</h5>
<ul>
<li class="collapsed"><a href="project-info.html" title="Project Information">Project Information</a></li>
<li class="collapsed"><a href="project-reports.html" title="Project Reports">Project Reports</a></li>
</ul>
<a href="https://github.com/checkstyle/checkstyle" title="GitHub" class="poweredBy">
<img class="poweredBy" alt="GitHub" src="images/github_logo_social_coding_outlined.png" />
</a>
<a href="https://twitter.com/checkstyle_java/" title="Twitter" class="poweredBy">
<img class="poweredBy" alt="Twitter" src="images/twitter_button.png" />
</a>
<a href="https://stackoverflow.com/questions/tagged/checkstyle" title="Stackoverflow" class="poweredBy">
<img class="poweredBy" alt="Stackoverflow" src="images/stackoverflow.jpeg" />
</a>
<a href="https://groups.google.com/forum/#!forum/checkstyle" title="GoogleGroups" class="poweredBy">
<img class="poweredBy" alt="GoogleGroups" src="images/groups.png" />
</a>
<a href="https://www.ej-technologies.com/products/jprofiler/overview.html" title="JProfiler" class="poweredBy">
<img class="poweredBy" alt="JProfiler" src="https://www.ej-technologies.com/images/product_banners/jprofiler_medium.png" />
</a>
</div>
</div>
<div id="bodyColumn">
<div id="contentBox">
<section>
<h2><a name="Content"></a>Content</h2>
<ul>
<li><a href="#Content">Content</a></li>
<li><a href="#Description">Description</a></li>
<li><a href="#Command_line_usage">Command line usage</a></li>
<li><a href="#Download_and_Run">Download and Run</a></li>
<li><a href="#Run_after_compilation">Run after compilation</a></li>
<li><a href="#Usage_by_Classpath_update">Usage by Classpath update</a></li></ul>
</section>
<section>
<h2><a name="Description"></a>Description</h2>
<p>
This document describes how to run Checkstyle using the command line
tool. The latest version of Checkstyle can be downloaded as described at
<a href="./index.html#Download">Download section</a>.
This command line tool is included in the Checkstyle distribution.
</p>
</section>
<section>
<h2><a name="Command_line_usage"></a>Command line usage</h2>
<p>
</p>
<div class="source">
<pre>
java -D<property>=<value> \
com.puppycrawl.tools.checkstyle.Main \
-c <configurationFile> \
[-f <format>] [-p <propertiesFile>] [-o <file>] \
[-s <line:column>] [-g | --generate-xpath-suppression] [-w | --tabWidth <length>] \
[-t | --tree] [-T | --treeWithComments] [-J | --treeWithJavadoc] [-j | --javadocTree] \
[-V | --version] [-b | --branch-matching-xpath <xpathQuery>] [-h | --help] \
[-e | --exclude <excludedPath>] [-E | --executeIgnoredModules] [-d | --debug] \
[-x | --exclude-regexp <excludedPathPattern>] \
file(s) or folder(s) ...
</pre></div>
<p>
Checkstyle will process the specified files and by default report
violations to standard out in plain format. Checkstyle requires a <a href="config.html">configuration XML file</a> that configures the
checks to apply. Command line options are:
</p>
<a name="Command_line_usage_Command_Line_Options"></a><section id="Command_line_usage_Command_Line_Options">
<h3><a name="Command_Line_Options"></a>Command Line Options</h3>
<div class="wrapper">
<table border="0" class="bodyTable">
<thead>
<tr class="a">
<th></th>
<th>Option</th>
<th>Description</th>
</tr>
</thead>
<tbody id="body">
<tr class="b">
<td align="left">
<a name="c"></a>
<a href="#c">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-c configurationFile</code>
</td>
<td>
Specifies the location of the file that defines the configuration modules.
The location can either be a filesystem location, or a
<a class="externalLink" href="https://docs.oracle.com/javase/8/docs/technotes/guides/lang/resources.html#res_names">
name</a> passed to the ClassLoader.getResource() method.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="f"></a>
<a href="#f">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-f format</code>
</td>
<td>
Specifies the output format. Valid values: <code>xml</code>,
<code>sarif</code>, <code>plain</code>
for <a href="apidocs/com/puppycrawl/tools/checkstyle/XMLLogger.html">
XMLLogger</a>,
<a href="apidocs/com/puppycrawl/tools/checkstyle/SarifLogger.html">
SarifLogger</a>, and
<a href="apidocs/com/puppycrawl/tools/checkstyle/DefaultLogger.html">
DefaultLogger</a> respectively. Defaults to <code>plain</code>.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="p"></a>
<a href="#p">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-p propertiesFile</code>
</td>
<td>
Sets the property files to load.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="o"></a>
<a href="#o">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-o file</code>
</td>
<td>
Sets the output file. Defaults to stdout.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="s"></a>
<a href="#s">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-s line:column</code>
</td>
<td>
Prints xpath suppressions at the file's line and column position. Argument is the
line and column number (separated by a : ) in the file that the suppression
should be generated for. The option cannot be used with other options and
requires exactly one file to run on to be specified. Note that the generated
result will have few queries, joined by pipe(|). Together they will match all
AST nodes on specified line and column. You need to choose only one and recheck
that it works. Usage of all of them is also ok, but might result in undesirable
matching and suppress other issues.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="g"></a>
<a href="#g">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-g--generate-xpath-suppression</code>
</td>
<td>
Generates to output a suppression xml to use to suppress all violations from
user's config. Instead of printing every violation, all violations will be
catched and single suppressions xml file will be printed out. Used only with
<code>-c</code> option. Output location can be specified
with <code>-o</code> option.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="w"></a>
<a href="#w">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-w, --tabWidth length</code>
</td>
<td>
Sets the length of the tab character. Used only with <code>-s</code> option.
Default value is 8.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="t"></a>
<a href="#t">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-t, --tree</code>
</td>
<td>
This option is used to display the Abstract Syntax Tree
(AST) <b>without any comments</b> of the specified file. It can only be used
on a single file and cannot be combined with other options.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="T"></a>
<a href="#T">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-T, --treeWithComments</code>
</td>
<td>
This option is used to display the Abstract Syntax Tree
(AST) <b>with comment nodes excluding Javadoc</b> of the specified file.
It can only be used on a single file and cannot be combined with other options.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="J"></a>
<a href="#J">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-J, --treeWithJavadoc</code>
</td>
<td>
This option is used to display the Abstract Syntax Tree
(AST) <b>with Javadoc nodes</b> of the specified file. It can only be used on
a single file and cannot be combined with other options.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="j"></a>
<a href="#j">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-j, --javadocTree</code>
</td>
<td>
This option is used to print the Parse Tree of the Javadoc comment. The file has
to contain <b>only Javadoc comment content</b> excluding '/**' and '*/'
at the beginning and at the end respectively. It can only be used on a
single file and cannot be combined with other options.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="d"></a>
<a href="#d">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-d, --debug</code>
</td>
<td>
Prints all debug logging of CheckStyle utility.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="e"></a>
<a href="#e">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-e, --exclude excludedPath</code>
</td>
<td>
Directory/file to exclude from CheckStyle. The path can be the full,
absolute path, or relative to the current path. Multiple excludes are allowed.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="x"></a>
<a href="#x">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-x, --exclude-regexp excludedPathPattern</code>
</td>
<td>
Directory/file pattern to exclude from CheckStyle. Multiple excludes are allowed.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="V"></a>
<a href="#V">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-V, --version</code>
</td>
<td>
Prints product version and exits. Any other option is ignored.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="b"></a>
<a href="#b">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-b, --branch-matching-xpath xpathQuery</code>
</td>
<td>
Shows Abstract Syntax Tree(AST) branches that match given XPath query.
</td>
</tr>
<tr class="b">
<td align="left">
<a name="h"></a>
<a href="#h">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-h, --help</code>
</td>
<td>
Prints usage help message and exits. Any other option is ignored.
</td>
</tr>
<tr class="a">
<td align="left">
<a name="E"></a>
<a href="#E">
<span class="wrapper inline">
<img src="images/anchor.png" alt="" />
</span>
</a>
</td>
<td>
<code>-E, --executeIgnoredModules</code>
</td>
<td>
Allows ignored modules to be run.
</td>
</tr>
</tbody>
</table>
</div>
</section>
<p>
Note that the <code>-n packageNamesFile</code>
option has been dropped for Checkstyle 5.0, because of significant changes regarding
package name file handling. See <a href="config.html#Packages">this link</a> for details.
</p>
<p>
To define system property for execution look at
<a href="config_system_properties.html">system properties</a>.
</p>
<p>
Set the properties for <a href="config.html#Properties">expanded
property values</a> by either by assigning system properties using the
<code>-D<property>=<value></code> arguments to java or
specifying a property file using the <code>-p</code> option. If a
property file is specified, the system properties are ignored.
</p>
<p>
CLI is implemented by means of <a class="externalLink" href="https://picocli.info">picocli</a>
library. Our CLI supports definition of arguments in file
by means of <a class="externalLink" href="https://picocli.info/#AtFiles">AtFiles</a> feature
and also command line completion in Bash or ZSH Unix shells, see how to make it
<a class="externalLink" href="https://picocli.info/autocomplete.html">here</a>.
</p>
</section>
<section>
<h2><a name="Download_and_Run"></a>Download and Run</h2>
<p>
It is possible to run Checkstyle directly from the JAR file using
the <code>-jar</code> option. Download latest
<a class="externalLink" href="https://github.com/checkstyle/checkstyle/releases/download/checkstyle-10.20.1/checkstyle-10.20.1-all.jar">
checkstyle-10.20.1-all.jar</a>.
An example of run would be:
</p>
<div class="wrap-content">
<div class="source">
<pre>
java -jar checkstyle-10.20.1-all.jar -c /sun_checks.xml MyClass.java
java -jar checkstyle-10.20.1-all.jar -c /google_checks.xml MyClass.java
</pre></div>
</div>
<p>
It is recommended to use configuration files that are embedded in jar files, but latest
configuration files are there:
<a class="externalLink" href="https://raw.githubusercontent.com/checkstyle/checkstyle/master/src/main/resources/sun_checks.xml">
sun_checks.xml</a>
<a class="externalLink" href="https://raw.githubusercontent.com/checkstyle/checkstyle/master/src/main/resources/google_checks.xml">
google_checks.xml</a>
</p>
<p>
To run <a href="writingchecks.html#The_Checkstyle_SDK_Gui">Checkstyle UI viewer</a>
for AST tree directly from the JAR file using
the <code>-jar</code> option. Download latest
<a class="externalLink" href="https://github.com/checkstyle/checkstyle/releases/download/checkstyle-10.20.1/checkstyle-10.20.1-all.jar">
checkstyle-10.20.1-all.jar</a>.
An example of run would be (path to java file is optional):
</p>
<div class="wrap-content">
<div class="source">
<pre>
java -cp checkstyle-10.20.1-all.jar com.puppycrawl.tools.checkstyle.gui.Main \
    MyClass.java
</pre></div>
</div>
</section>
<section>
<h2><a name="Run_after_compilation"></a>Run after compilation</h2>
<p>
Download and compile:
</p>
<div class="wrap-content">
<div class="source">
<pre>
git clone https://github.com/checkstyle/checkstyle.git
cd checkstyle
mvn clean compile
</pre></div>
</div>
<p>
Run validation with arguments:
</p>
<div class="wrap-content">
<div class="source">
<pre>
mvn exec:java -Dexec.mainClass="com.puppycrawl.tools.checkstyle.Main" \
    -Dexec.args="-c /sun_checks.xml src/main/java"
</pre></div>
</div>
<p>
Run UI application for file :
</p>
<div class="wrap-content">
<div class="source">
<pre>
mvn exec:java -Dexec.mainClass="com.puppycrawl.tools.checkstyle.gui.Main" -Dexec.args=\
    "src/main/java/com/puppycrawl/tools/checkstyle/Checker.java"
</pre></div>
</div>
<p>
Build all jars, and launch CLI from new build:
</p>
<div class="wrap-content">
<div class="source">
<pre>
mvn clean package -Passembly,no-validations
java -jar target/checkstyle-X.X-SNAPSHOT-all.jar -c /sun_checks.xml MyClass.java
</pre></div>
</div>
</section>
<section>
<h2><a name="Usage_by_Classpath_update"></a>Usage by Classpath update</h2>
<p>
The easiest way is to include
<a class="externalLink" href="https://github.com/checkstyle/checkstyle/releases/download/checkstyle-10.20.1/checkstyle-10.20.1-all.jar">
checkstyle-10.20.1-all.jar</a>
in the
<a class="externalLink" href="https://docs.oracle.com/javase/8/docs/technotes/tools/windows/classpath.html#sthref10">
classpath</a>.
Alternatively, you must include the
<code>compile</code> third party dependencies listed in
<a href="dependencies.html">Project Dependencies</a> in the
classpath.
<br />
<br />
<b>
Run checkstyle with configuration file at
<code>/sun_checks.xml</code> on a filesystem
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java com.puppycrawl.tools.checkstyle.Main -c /sun_checks.xml Check.java
</pre></div>
</div>
<p>
<b>
Run checkstyle with configuration file
<code>/sun_checks.xml</code> on all Java files in a directory
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java com.puppycrawl.tools.checkstyle.Main -c /sun_checks.xml src/
</pre></div>
</div>
<p>
<b>
Run checkstyle with configuration file
<code>/sun_checks.xml</code> on a file and provide a system
property
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java -Dcheckstyle.cache.file=target/cachefile com.puppycrawl.tools.checkstyle.Main \
    -c /sun_checks.xml Check.java
</pre></div>
</div>
<p>
<b>
Run checkstyle with configuration file
<code>/sun_checks.xml</code> on a file and use properties in a
file
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java com.puppycrawl.tools.checkstyle.Main -c /sun_checks.xml \
    -p myCheckstyle.properties Check.java
</pre></div>
</div>
<p>
<b>
Run checkstyle with configuration file
<code>/sun_checks.xml</code> on a file and output to a file in
XML format
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java com.puppycrawl.tools.checkstyle.Main -c /sun_checks.xml -f xml \
    -o build/checkstyle_errors.xml Check.java
</pre></div>
</div>
<p>
<b>
Run checkstyle with <a href="extending.html">custom module(s)
(Root module, Checks, etc)</a> in configuration file:
</b>
</p>
<div class="wrap-content">
<div class="source">
<pre>
java -classpath MyCustom.jar;checkstyle-10.20.1-all.jar \
    com.puppycrawl.tools.checkstyle.Main -c config.xml Check.java
</pre></div>
</div>
<p>
<b>Note</b>: Custom modules should be specified with the class'
<a href="writingchecks.html#Integrating_Checks">full classpath</a>
in the configuration file and the compiled class be located in the custom
JAR for Checkstyle to find.
</p>
</section>
</div>
</div>
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