Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://eslint.org/docs/latest/user-guide/command-line-interface below:

Command Line Interface Reference - ESLint

The ESLint Command Line Interface (CLI) lets you execute linting from the terminal. The CLI has a variety of options that you can pass to configure ESLint.

ESLint requires Node.js for installation. Follow the instructions in the Getting Started Guide to install ESLint.

Most users use npx to run ESLint on the command line like this:

npx eslint [options] [file|dir|glob]* 
1

yarn dlx eslint [options] [file|dir|glob]* 
1

pnpm dlx eslint [options] [file|dir|glob]* 
1

bunx eslint [options] [file|dir|glob]* 
1

Such as:

npx eslint file1.js file2.js 
1
2

yarn dlx eslint file1.js file2.js 
1
2

pnpm dlx eslint file1.js file2.js 
1
2

bunx eslint file1.js file2.js 
1
2

or

yarn dlx eslint lib/** 
1
2

pnpm dlx eslint lib/** 
1
2

Please note that when passing a glob as a parameter, it is expanded by your shell. The results of the expansion can vary depending on your shell, and its configuration. If you want to use node glob syntax, you have to quote your parameter (using double quotes if you need it to run in Windows), as follows:

yarn dlx eslint "lib/**" 
1

pnpm dlx eslint "lib/**" 
1

If you are using a flat configuration file (eslint.config.js), you can also omit the file arguments and ESLint will use .. For instance, these two lines perform the same operation:

If you are not using a flat configuration file, running ESLint without file arguments results in an error.

Note: You can also use alternative package managers such as Yarn or pnpm to run ESLint. For pnpm use pnpm dlx eslint and for Yarn use yarn dlx eslint.

Options that accept multiple values can be specified by repeating the option or with a comma-delimited list (other than --ignore-pattern, which does not allow the second style).

Examples of options that accept multiple values:

npx eslint --global describe --global it tests/ 
1

yarn dlx eslint --global describe --global it tests/ 
1

pnpm dlx eslint --global describe --global it tests/ 
1

bunx eslint --global describe --global it tests/ 
1

OR

npx eslint --global describe,it tests/ 
1

yarn dlx eslint --global describe,it tests/ 
1

pnpm dlx eslint --global describe,it tests/ 
1

bunx eslint --global describe,it tests/ 
1

You can view all the CLI options by running npx eslint -h.

eslint [options] file.js [file.js] [dir]

Basic configuration:
  --no-config-lookup              Disable look up for eslint.config.js
  -c, --config path::String       Use this configuration instead of eslint.config.js, eslint.config.mjs, or
                                  eslint.config.cjs
  --inspect-config                Open the config inspector with the current configuration
  --ext [String]                  Specify additional file extensions to lint
  --global [String]               Define global variables
  --parser String                 Specify the parser to be used
  --parser-options Object         Specify parser options

Specify Rules and Plugins:
  --plugin [String]               Specify plugins
  --rule Object                   Specify rules

Fix Problems:
  --fix                           Automatically fix problems
  --fix-dry-run                   Automatically fix problems without saving the changes to the file system
  --fix-type Array                Specify the types of fixes to apply (directive, problem, suggestion, layout)

Ignore Files:
  --no-ignore                     Disable use of ignore files and patterns
  --ignore-pattern [String]       Patterns of files to ignore

Use stdin:
  --stdin                         Lint code provided on <STDIN> - default: false
  --stdin-filename String         Specify filename to process STDIN as

Handle Warnings:
  --quiet                         Report errors only - default: false
  --max-warnings Int              Number of warnings to trigger nonzero exit code - default: -1

Output:
  -o, --output-file path::String  Specify file to write report to
  -f, --format String             Use a specific output format - default: stylish
  --color, --no-color             Force enabling/disabling of color

Inline configuration comments:
  --no-inline-config              Prevent comments from changing config or rules
  --report-unused-disable-directives  Adds reported errors for unused eslint-disable and eslint-enable directives
  --report-unused-disable-directives-severity String  Chooses severity level for reporting unused eslint-disable and
                                                      eslint-enable directives - either: off, warn, error, 0, 1, or 2
  --report-unused-inline-configs String  Adds reported errors for unused eslint inline config comments - either: off, warn, error, 0, 1, or 2

Caching:
  --cache                         Only check changed files - default: false
  --cache-file path::String       Path to the cache file. Deprecated: use --cache-location - default: .eslintcache
  --cache-location path::String   Path to the cache file or directory
  --cache-strategy String         Strategy to use for detecting changed files in the cache - either: metadata or
                                  content - default: metadata

Suppressing Violations:
  --suppress-all                  Suppress all violations - default: false
  --suppress-rule [String]        Suppress specific rules
  --suppressions-location path::String  Specify the location of the suppressions file
  --prune-suppressions            Prune unused suppressions - default: false
  --pass-on-unpruned-suppressions Ignore unused suppressions - default: false

Miscellaneous:
  --init                          Run config initialization wizard - default: false
  --env-info                      Output execution environment information - default: false
  --no-error-on-unmatched-pattern  Prevent errors when pattern is unmatched
  --exit-on-fatal-error           Exit with exit code 2 in case of fatal error - default: false
  --no-warn-ignored               Suppress warnings when the file list includes ignored files
  --pass-on-no-patterns           Exit with exit code 0 in case no file patterns are passed
  --debug                         Output debugging information
  -h, --help                      Show help
  -v, --version                   Output the version number
  --print-config path::String     Print the configuration for the given file
  --stats                         Add statistics to the lint report - default: false
  --flag [String]                 Enable a feature flag
  --mcp                           Start the ESLint MCP server
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

eslintrc Mode Only. Disables use of configuration from .eslintrc.* and package.json files. For flat config mode, use --no-config-lookup instead.

• Argument Type: No argument.

npx eslint --no-eslintrc file.js 
1

yarn dlx eslint --no-eslintrc file.js 
1

pnpm dlx eslint --no-eslintrc file.js 
1

bunx eslint --no-eslintrc file.js 
1

This option allows you to specify an additional configuration file for ESLint (see Configure ESLint for more).

• Argument Type: String. Path to file.
• Multiple Arguments: No

npx eslint -c ~/my.eslint.config.js file.js 
1

yarn dlx eslint -c ~/my.eslint.config.js file.js 
1

pnpm dlx eslint -c ~/my.eslint.config.js file.js 
1

bunx eslint -c ~/my.eslint.config.js file.js 
1

This example uses the configuration file at ~/my.eslint.config.js, which is used instead of searching for an eslint.config.js file.

Flat Config Mode Only. This option runs npx @eslint/config-inspector@latest to start the config inspector. You can use the config inspector to better understand what your configuration is doing and which files it applies to. When you use this flag, the CLI does not perform linting.

• Argument Type: No argument.

npx eslint --inspect-config 
1

yarn dlx eslint --inspect-config 
1

pnpm dlx eslint --inspect-config 
1

bunx eslint --inspect-config 
1

eslintrc Mode Only. This option enables specific environments.

• Argument Type: String. One of the available environments.
• Multiple Arguments: Yes

Details about the global variables defined by each environment are available in the Specifying Environments documentation. This option only enables environments. It does not disable environments set in other configuration files. To specify multiple environments, separate them using commas, or use the option multiple times.

npx eslint --env browser,node file.js 
1

yarn dlx eslint --env browser,node file.js 
1

pnpm dlx eslint --env browser,node file.js 
1

bunx eslint --env browser,node file.js 
1

npx eslint --env browser --env node file.js 
1

yarn dlx eslint --env browser --env node file.js 
1

pnpm dlx eslint --env browser --env node file.js 
1

bunx eslint --env browser --env node file.js 
1

This option allows you to specify additional file extensions to lint.

• Argument Type: String. File extension.
• Multiple Arguments: Yes
• Default Value: By default, ESLint lints files with extensions .js, .mjs, .cjs, and additional extensions specified in the configuration file.

This option is primarily intended for use in combination with the --no-config-lookup option, since in that case there is no configuration file in which the additional extensions would be specified.

npx eslint . --ext .ts 
1
2

yarn dlx eslint . --ext .ts 
1
2

pnpm dlx eslint . --ext .ts 
1
2

bunx eslint . --ext .ts 
1
2

npx eslint . --ext .ts --ext .tsx 
1
2

yarn dlx eslint . --ext .ts --ext .tsx 
1
2

pnpm dlx eslint . --ext .ts --ext .tsx 
1
2

bunx eslint . --ext .ts --ext .tsx 
1
2

npx eslint . --ext .ts,.tsx 
1
2

yarn dlx eslint . --ext .ts,.tsx 
1
2

pnpm dlx eslint . --ext .ts,.tsx 
1
2

bunx eslint . --ext .ts,.tsx 
1
2

This option defines global variables so that they are not flagged as undefined by the no-undef rule.

• Argument Type: String. Name of the global variable. Any specified global variables are assumed to be read-only by default, but appending :true to a variable’s name ensures that no-undef also allows writes.
• Multiple Arguments: Yes

npx eslint --global require,exports:true file.js 
1

yarn dlx eslint --global require,exports:true file.js 
1

pnpm dlx eslint --global require,exports:true file.js 
1

bunx eslint --global require,exports:true file.js 
1

npx eslint --global require --global exports:true 
1

yarn dlx eslint --global require --global exports:true 
1

pnpm dlx eslint --global require --global exports:true 
1

bunx eslint --global require --global exports:true 
1

This option allows you to specify a parser to be used by ESLint.

• Argument Type: String. Parser to be used by ESLint.
• Multiple Arguments: No
• Default Value: espree

npx eslint --parser @typescript-eslint/parser file.ts 
1
2

yarn dlx eslint --parser @typescript-eslint/parser file.ts 
1
2

pnpm dlx eslint --parser @typescript-eslint/parser file.ts 
1
2

bunx eslint --parser @typescript-eslint/parser file.ts 
1
2

This option allows you to specify parser options to be used by ESLint. The available parser options are determined by the parser being used.

• Argument Type: Key/value pair separated by colon (:).
• Multiple Arguments: Yes

echo '3 ** 4' | npx eslint --stdin --parser-options ecmaVersion:6 
1
2

echo '3 ** 4' | yarn dlx eslint --stdin --parser-options ecmaVersion:6 
1
2

echo '3 ** 4' | pnpm dlx eslint --stdin --parser-options ecmaVersion:6 
1
2

echo '3 ** 4' | bunx eslint --stdin --parser-options ecmaVersion:6 
1
2

echo '3 ** 4' | npx eslint --stdin --parser-options ecmaVersion:7 
1
2

echo '3 ** 4' | yarn dlx eslint --stdin --parser-options ecmaVersion:7 
1
2

echo '3 ** 4' | pnpm dlx eslint --stdin --parser-options ecmaVersion:7 
1
2

echo '3 ** 4' | bunx eslint --stdin --parser-options ecmaVersion:7 
1
2

eslintrc Mode Only. Changes the directory where plugins are resolved from.

• Argument Type: String. Path to directory.
• Multiple Arguments: No
• Default Value: By default, plugins are resolved from the directory in which your configuration file is found.

This option should be used when plugins were installed by someone other than the end user. It should be set to the project directory of the project that has a dependency on the necessary plugins.

For example:

• When using a config file that is located outside of the current project (with the --config flag), if the config uses plugins which are installed locally to itself, --resolve-plugins-relative-to should be set to the directory containing the config file.
• If an integration has dependencies on ESLint and a set of plugins, and the tool invokes ESLint on behalf of the user with a preset configuration, the tool should set --resolve-plugins-relative-to to the top-level directory of the tool.

npx eslint --config ~/personal-eslintrc.js --resolve-plugins-relative-to /usr/local/lib/ 
1

yarn dlx eslint --config ~/personal-eslintrc.js --resolve-plugins-relative-to /usr/local/lib/ 
1

pnpm dlx eslint --config ~/personal-eslintrc.js --resolve-plugins-relative-to /usr/local/lib/ 
1

bunx eslint --config ~/personal-eslintrc.js --resolve-plugins-relative-to /usr/local/lib/ 
1

This option specifies a plugin to load.

• Argument Type: String. Plugin name. You can optionally omit the prefix eslint-plugin- from the plugin name.
• Multiple Arguments: Yes

Before using the plugin, you have to install it using npm.

npx eslint --plugin jquery file.js 
1

yarn dlx eslint --plugin jquery file.js 
1

pnpm dlx eslint --plugin jquery file.js 
1

bunx eslint --plugin jquery file.js 
1

npx eslint --plugin eslint-plugin-mocha file.js 
1

yarn dlx eslint --plugin eslint-plugin-mocha file.js 
1

pnpm dlx eslint --plugin eslint-plugin-mocha file.js 
1

bunx eslint --plugin eslint-plugin-mocha file.js 
1

This option specifies the rules to be used.

• Argument Type: Rules and their configuration specified with levn format.
• Multiple Arguments: Yes

These rules are merged with any rules specified with configuration files. If the rule is defined in a plugin, you have to prefix the rule ID with the plugin name and a /.

To ignore rules in .eslintrc configuration files and only run rules specified in the command line, use the --rule flag in combination with the --no-eslintrc flag.

npx eslint --rule 'quotes: [error, double]' 
1
2

yarn dlx eslint --rule 'quotes: [error, double]' 
1
2

pnpm dlx eslint --rule 'quotes: [error, double]' 
1
2

bunx eslint --rule 'quotes: [error, double]' 
1
2

npx eslint --rule 'guard-for-in: error' --rule 'brace-style: [error, 1tbs]' 
1
2

yarn dlx eslint --rule 'guard-for-in: error' --rule 'brace-style: [error, 1tbs]' 
1
2

pnpm dlx eslint --rule 'guard-for-in: error' --rule 'brace-style: [error, 1tbs]' 
1
2

bunx eslint --rule 'guard-for-in: error' --rule 'brace-style: [error, 1tbs]' 
1
2

npx eslint --rule 'jquery/dollar-sign: error' 
1
2

yarn dlx eslint --rule 'jquery/dollar-sign: error' 
1
2

pnpm dlx eslint --rule 'jquery/dollar-sign: error' 
1
2

bunx eslint --rule 'jquery/dollar-sign: error' 
1
2

npx eslint --rule 'quotes: [error, double]' --no-eslintrc 
1
2

yarn dlx eslint --rule 'quotes: [error, double]' --no-eslintrc 
1
2

pnpm dlx eslint --rule 'quotes: [error, double]' --no-eslintrc 
1
2

bunx eslint --rule 'quotes: [error, double]' --no-eslintrc 
1
2

Deprecated: Use rules from plugins instead.

eslintrc Mode Only. This option allows you to specify another directory from which to load rules files. This allows you to dynamically load new rules at run time. This is useful when you have custom rules that aren’t suitable for being bundled with ESLint.

• Argument Type: String. Path to directory. The rules in your custom rules directory must follow the same format as bundled rules to work properly.
• Multiple Arguments: Yes

Note that, as with core rules and plugin rules, you still need to enable the rules in configuration or via the --rule CLI option in order to actually run those rules during linting. Specifying a rules directory with --rulesdir does not automatically enable the rules within that directory.

npx eslint --rulesdir my-rules/ file.js 
1

yarn dlx eslint --rulesdir my-rules/ file.js 
1

pnpm dlx eslint --rulesdir my-rules/ file.js 
1

bunx eslint --rulesdir my-rules/ file.js 
1

npx eslint --rulesdir my-rules/ --rulesdir my-other-rules/ file.js 
1

yarn dlx eslint --rulesdir my-rules/ --rulesdir my-other-rules/ file.js 
1

pnpm dlx eslint --rulesdir my-rules/ --rulesdir my-other-rules/ file.js 
1

bunx eslint --rulesdir my-rules/ --rulesdir my-other-rules/ file.js 
1

This option instructs ESLint to try to fix as many issues as possible. The fixes are made to the actual files themselves and only the remaining unfixed issues are output.

• Argument Type: No argument.

Not all problems are fixable using this option, and the option does not work in these situations:

1. This option throws an error when code is piped to ESLint.
2. This option has no effect on code that uses a processor, unless the processor opts into allowing autofixes.

If you want to fix code from stdin or otherwise want to get the fixes without actually writing them to the file, use the --fix-dry-run option.

npx eslint --fix file.js 
1

yarn dlx eslint --fix file.js 
1

pnpm dlx eslint --fix file.js 
1

bunx eslint --fix file.js 
1

This option has the same effect as --fix with the difference that the fixes are not saved to the file system. Because the default formatter does not output the fixed code, you’ll have to use another formatter (e.g. --format json) to get the fixes.

• Argument Type: No argument.

This makes it possible to fix code from stdin when used with the --stdin flag.

This flag can be useful for integrations (e.g. editor plugins) which need to autofix text from the command line without saving it to the filesystem.

getSomeText | npx eslint --stdin --fix-dry-run --format json 
1

getSomeText | yarn dlx eslint --stdin --fix-dry-run --format json 
1

getSomeText | pnpm dlx eslint --stdin --fix-dry-run --format json 
1

getSomeText | bunx eslint --stdin --fix-dry-run --format json 
1

This option allows you to specify the type of fixes to apply when using either --fix or --fix-dry-run.

• Argument Type: String. One of the following fix types:
  1. problem - fix potential errors in the code
  2. suggestion - apply fixes to the code that improve it
  3. layout - apply fixes that do not change the program structure (AST)
  4. directive - apply fixes to inline directives such as // eslint-disable
• Multiple Arguments: Yes

This option is helpful if you are using another program to format your code, but you would still like ESLint to apply other types of fixes.

npx eslint --fix --fix-type suggestion . 
1

yarn dlx eslint --fix --fix-type suggestion . 
1

pnpm dlx eslint --fix --fix-type suggestion . 
1

bunx eslint --fix --fix-type suggestion . 
1

npx eslint --fix --fix-type suggestion --fix-type problem . 
1

yarn dlx eslint --fix --fix-type suggestion --fix-type problem . 
1

pnpm dlx eslint --fix --fix-type suggestion --fix-type problem . 
1

bunx eslint --fix --fix-type suggestion --fix-type problem . 
1

npx eslint --fix --fix-type suggestion,layout . 
1

yarn dlx eslint --fix --fix-type suggestion,layout . 
1

pnpm dlx eslint --fix --fix-type suggestion,layout . 
1

bunx eslint --fix --fix-type suggestion,layout . 
1

eslintrc Mode Only. This option allows you to specify the file to use as your .eslintignore.

• Argument Type: String. Path to file.
• Multiple Arguments: No
• Default Value: By default, ESLint looks for .eslintignore in the current working directory.

Note: --ignore-path is only supported when using deprecated configuration. If you want to include patterns from a .gitignore file in your eslint.config.js file, please see including .gitignore files.

npx eslint --ignore-path tmp/.eslintignore file.js 
1

yarn dlx eslint --ignore-path tmp/.eslintignore file.js 
1

pnpm dlx eslint --ignore-path tmp/.eslintignore file.js 
1

bunx eslint --ignore-path tmp/.eslintignore file.js 
1

npx eslint --ignore-path .gitignore file.js 
1

yarn dlx eslint --ignore-path .gitignore file.js 
1

pnpm dlx eslint --ignore-path .gitignore file.js 
1

bunx eslint --ignore-path .gitignore file.js 
1

Disables excluding of files from .eslintignore files, --ignore-path flags, --ignore-pattern flags, and the ignorePatterns property in config files.

• Argument Type: No argument.

npx eslint --no-ignore file.js 
1

yarn dlx eslint --no-ignore file.js 
1

pnpm dlx eslint --no-ignore file.js 
1

bunx eslint --no-ignore file.js 
1

This option allows you to specify patterns of files to ignore. In eslintrc mode, these are in addition to .eslintignore.

• Argument Type: String. The supported syntax is the same as for .eslintignore files, which use the same patterns as the .gitignore specification. You should quote your patterns in order to avoid shell interpretation of glob patterns.
• Multiple Arguments: Yes

npx eslint --ignore-pattern "/lib/" --ignore-pattern "/src/vendor/*" . 
1

yarn dlx eslint --ignore-pattern "/lib/" --ignore-pattern "/src/vendor/*" . 
1

pnpm dlx eslint --ignore-pattern "/lib/" --ignore-pattern "/src/vendor/*" . 
1

bunx eslint --ignore-pattern "/lib/" --ignore-pattern "/src/vendor/*" . 
1

This option tells ESLint to read and lint source code from STDIN instead of from files. You can use this to pipe code to ESLint.

• Argument Type: No argument.

cat myFile.js | npx eslint --stdin 
1

cat myFile.js | yarn dlx eslint --stdin 
1

cat myFile.js | pnpm dlx eslint --stdin 
1

cat myFile.js | bunx eslint --stdin 
1

This option allows you to specify a filename to process STDIN as.

• Argument Type: String. Path to file.
• Multiple Arguments: No

This is useful when processing files from STDIN and you have rules which depend on the filename.

cat myFile.js | npx eslint --stdin --stdin-filename myfile.js 
1

cat myFile.js | yarn dlx eslint --stdin --stdin-filename myfile.js 
1

cat myFile.js | pnpm dlx eslint --stdin --stdin-filename myfile.js 
1

cat myFile.js | bunx eslint --stdin --stdin-filename myfile.js 
1

This option allows you to disable reporting on warnings and running of rules set to warn. If you enable this option, only errors are reported by ESLint and only rules set to error will be run.

• Argument Type: No argument.

npx eslint --quiet file.js 
1

yarn dlx eslint --quiet file.js 
1

pnpm dlx eslint --quiet file.js 
1

bunx eslint --quiet file.js 
1

This option allows you to specify a warning threshold, which can be used to force ESLint to exit with an error status if there are too many warning-level rule violations in your project.

• Argument Type: Integer. The maximum number of warnings to allow. To prevent this behavior, do not use this option or specify -1 as the argument.
• Multiple Arguments: No

Normally, if ESLint runs and finds no errors (only warnings), it exits with a success exit status. However, if --max-warnings is specified and the total warning count is greater than the specified threshold, ESLint exits with an error status.

When used alongside --quiet, this will cause rules marked as warn to still be run, but not reported.

npx eslint --max-warnings 10 file.js 
1

yarn dlx eslint --max-warnings 10 file.js 
1

pnpm dlx eslint --max-warnings 10 file.js 
1

bunx eslint --max-warnings 10 file.js 
1

Write the output of linting results to a specified file.

• Argument Type: String. Path to file.
• Multiple Arguments: No

npx eslint -o ./test/test.html 
1

yarn dlx eslint -o ./test/test.html 
1

pnpm dlx eslint -o ./test/test.html 
1

bunx eslint -o ./test/test.html 
1

This option specifies the output format for the console.

• Argument Type: String. One of the built-in formatters or a custom formatter.
• Multiple Arguments: No
• Default Value: stylish

If you are using a custom formatter defined in a local file, you can specify the path to the custom formatter file.

An npm-installed formatter is resolved with or without eslint-formatter- prefix.

When specified, the given format is output to the console. If you’d like to save that output into a file, you can do so on the command line like so:

npx eslint -f json file.js > results.json 
1
2

yarn dlx eslint -f json file.js > results.json 
1
2

pnpm dlx eslint -f json file.js > results.json 
1
2

bunx eslint -f json file.js > results.json 
1
2

Use the built-in json formatter:

npx eslint --format json file.js 
1

yarn dlx eslint --format json file.js 
1

pnpm dlx eslint --format json file.js 
1

bunx eslint --format json file.js 
1

Use a local custom formatter:

npx eslint -f ./customformat.js file.js 
1

yarn dlx eslint -f ./customformat.js file.js 
1

pnpm dlx eslint -f ./customformat.js file.js 
1

bunx eslint -f ./customformat.js file.js 
1

Use an npm-installed formatter:

npm install eslint-formatter-pretty
1

yarn add eslint-formatter-pretty
1

pnpm add eslint-formatter-pretty
1

bun add eslint-formatter-pretty
1

Then run one of the following commands

npx eslint -f pretty file.js 
1

yarn dlx eslint -f pretty file.js 
1

pnpm dlx eslint -f pretty file.js 
1

bunx eslint -f pretty file.js 
1

or alternatively

npx eslint -f eslint-formatter-pretty file.js 
1

yarn dlx eslint -f eslint-formatter-pretty file.js 
1

pnpm dlx eslint -f eslint-formatter-pretty file.js 
1

bunx eslint -f eslint-formatter-pretty file.js 
1

These options force the enabling/disabling of colorized output.

• Argument Type: No argument.

You can use these options to override the default behavior, which is to enable colorized output unless no TTY is detected, such as when piping eslint through cat or less.

npx eslint --color file.js | cat 
1

yarn dlx eslint --color file.js | cat 
1

pnpm dlx eslint --color file.js | cat 
1

bunx eslint --color file.js | cat 
1

npx eslint --no-color file.js 
1

yarn dlx eslint --no-color file.js 
1

pnpm dlx eslint --no-color file.js 
1

bunx eslint --no-color file.js 
1

This option prevents inline comments like /*eslint-disable*/ or /*global foo*/ from having any effect.

• Argument Type: No argument.

This allows you to set an ESLint config without files modifying it. All inline config comments are ignored, such as:

• /*eslint-disable*/
• /*eslint-enable*/
• /*global*/
• /*eslint*/
• /*eslint-env*/
• // eslint-disable-line
• // eslint-disable-next-line

npx eslint --no-inline-config file.js 
1

yarn dlx eslint --no-inline-config file.js 
1

pnpm dlx eslint --no-inline-config file.js 
1

bunx eslint --no-inline-config file.js 
1

This option causes ESLint to report directive comments like // eslint-disable-line when no errors would have been reported on that line anyway.

• Argument Type: No argument.

This can be useful to prevent future errors from unexpectedly being suppressed, by cleaning up old eslint-disable and eslint-enable comments which are no longer applicable.

When using this option, it is possible that new errors start being reported whenever ESLint or custom rules are upgraded.

For example, suppose a rule has a bug that causes it to report a false positive, and an eslint-disable comment is added to suppress the incorrect report. If the bug is then fixed in a patch release of ESLint, the eslint-disable comment becomes unused since ESLint is no longer generating an incorrect report. This results in a new reported error for the unused directive if the --report-unused-disable-directives option is used.

npx eslint --report-unused-disable-directives file.js 
1

yarn dlx eslint --report-unused-disable-directives file.js 
1

pnpm dlx eslint --report-unused-disable-directives file.js 
1

bunx eslint --report-unused-disable-directives file.js 
1

Same as --report-unused-disable-directives, but allows you to specify the severity level (error, warn, off) of the reported errors. Only one of these two options can be used at a time.

• Argument Type: String. One of the following values:
  1. off (or 0)
  2. warn (or 1)
  3. error (or 2)
• Multiple Arguments: No
• Default Value: By default, linterOptions.reportUnusedDisableDirectives configuration setting is used (which defaults to "warn").

npx eslint --report-unused-disable-directives-severity warn file.js 
1

yarn dlx eslint --report-unused-disable-directives-severity warn file.js 
1

pnpm dlx eslint --report-unused-disable-directives-severity warn file.js 
1

bunx eslint --report-unused-disable-directives-severity warn file.js 
1

This option causes ESLint to report inline config comments like /* eslint rule-name: "error" */ whose rule severity and any options match what’s already been configured.

• Argument Type: String. One of the following values:
  1. off (or 0)
  2. warn (or 1)
  3. error (or 2)
• Multiple Arguments: No
• Default Value: By default, linterOptions.reportUnusedInlineConfigs configuration setting is used (which defaults to "off").

This can be useful to keep files clean and devoid of misleading clutter. Inline config comments are meant to change ESLint’s behavior in some way: if they change nothing, there is no reason to leave them in.

npx eslint --report-unused-inline-configs error file.js
1

Store the info about processed files in order to only operate on the changed ones. Enabling this option can dramatically improve ESLint’s run time performance by ensuring that only changed files are linted. The cache is stored in .eslintcache by default.

• Argument Type: No argument.

If you run ESLint with --cache and then run ESLint without --cache, the .eslintcache file will be deleted. This is necessary because the results of the lint might change and make .eslintcache invalid. If you want to control when the cache file is deleted, then use --cache-location to specify an alternate location for the cache file.

Autofixed files are not placed in the cache. Subsequent linting that does not trigger an autofix will place it in the cache.

npx eslint --cache file.js 
1

yarn dlx eslint --cache file.js 
1

pnpm dlx eslint --cache file.js 
1

bunx eslint --cache file.js 
1

Deprecated: Use --cache-location instead.

Path to the cache file. If none specified .eslintcache is used. The file is created in the directory where the eslint command is executed.

Specify the path to the cache location. Can be a file or a directory.

• Argument Type: String. Path to file or directory. If a directory is specified, a cache file is created inside the specified folder. The name of the file is based on the hash of the current working directory, e.g.: .cache_hashOfCWD.
• Multiple Arguments: No
• Default Value: If no location is specified, .eslintcache is used. The file is created in the directory where the eslint command is executed.

If the directory for the cache does not exist make sure you add a trailing / on *nix systems or \ on Windows. Otherwise, the path is assumed to be a file.

npx eslint "src/**/*.js" --cache --cache-location "/Users/user/.eslintcache/" 
1

yarn dlx eslint "src/**/*.js" --cache --cache-location "/Users/user/.eslintcache/" 
1

pnpm dlx eslint "src/**/*.js" --cache --cache-location "/Users/user/.eslintcache/" 
1

bunx eslint "src/**/*.js" --cache --cache-location "/Users/user/.eslintcache/" 
1

Strategy for the cache to use for detecting changed files.

• Argument Type: String. One of the following values:
  1. metadata
  2. content
• Multiple Arguments: No
• Default Value: metadata

The content strategy can be useful in cases where the modification time of your files changes even if their contents have not. For example, this can happen during git operations like git clone because git does not track file modification time.

npx eslint "src/**/*.js" --cache --cache-strategy content 
1

yarn dlx eslint "src/**/*.js" --cache --cache-strategy content 
1

pnpm dlx eslint "src/**/*.js" --cache --cache-strategy content 
1

bunx eslint "src/**/*.js" --cache --cache-strategy content 
1

Suppresses existing violations, so that they are not being reported in subsequent runs. It allows you to enable one or more lint rules and be notified only when new violations show up. The suppressions are stored in eslint-suppressions.json by default, unless otherwise specified by --suppressions-location. The file gets updated with the new suppressions.

• Argument Type: No argument.

npx eslint "src/**/*.js" --suppress-all 
1

yarn dlx eslint "src/**/*.js" --suppress-all 
1

pnpm dlx eslint "src/**/*.js" --suppress-all 
1

bunx eslint "src/**/*.js" --suppress-all 
1

Suppresses violations for specific rules, so that they are not being reported in subsequent runs. Similar to --suppress-all, the suppressions are stored in eslint-suppressions.json by default, unless otherwise specified by --suppressions-location. The file gets updated with the new suppressions.

• Argument Type: String. Rule ID.
• Multiple Arguments: Yes

npx eslint "src/**/*.js" --suppress-rule no-console --suppress-rule indent 
1

yarn dlx eslint "src/**/*.js" --suppress-rule no-console --suppress-rule indent 
1

pnpm dlx eslint "src/**/*.js" --suppress-rule no-console --suppress-rule indent 
1

bunx eslint "src/**/*.js" --suppress-rule no-console --suppress-rule indent 
1

Specify the path to the suppressions location. Can be a file or a directory.

• Argument Type: String. Path to file. If a directory is specified, a cache file is created inside the specified folder. The name of the file is based on the hash of the current working directory, e.g.: suppressions_hashOfCWD
• Multiple Arguments: No
• Default Value: If no location is specified, eslint-suppressions.json is used. The file is created in the directory where the eslint command is executed.

npx eslint "src/**/*.js" --suppressions-location ".eslint-suppressions-example.json" 
1

yarn dlx eslint "src/**/*.js" --suppressions-location ".eslint-suppressions-example.json" 
1

pnpm dlx eslint "src/**/*.js" --suppressions-location ".eslint-suppressions-example.json" 
1

bunx eslint "src/**/*.js" --suppressions-location ".eslint-suppressions-example.json" 
1

Prune unused suppressions from the suppressions file. This option is useful when you addressed one or more of the suppressed violations.

• Argument Type: No argument.

npx eslint "src/**/*.js" --prune-suppressions 
1

yarn dlx eslint "src/**/*.js" --prune-suppressions 
1

pnpm dlx eslint "src/**/*.js" --prune-suppressions 
1

bunx eslint "src/**/*.js" --prune-suppressions 
1

Ignore unused suppressions. By default, ESLint exits with exit code 2 and displays an error message if there are unused suppressions in the suppressions file. When you use this flag, unused suppressions do not affect the exit code and ESLint doesn’t output an error about unused suppressions.

• Argument Type: No argument.

npx eslint "src/**/*.js" --pass-on-unpruned-suppressions 
1

yarn dlx eslint "src/**/*.js" --pass-on-unpruned-suppressions 
1

pnpm dlx eslint "src/**/*.js" --pass-on-unpruned-suppressions 
1

bunx eslint "src/**/*.js" --pass-on-unpruned-suppressions 
1

This option runs npm init @eslint/config to start the config initialization wizard. It’s designed to help new users quickly create an eslint.config.js file by answering a few questions. When you use this flag, the CLI does not perform linting.

• Argument Type: No argument.

The resulting configuration file is created in the current directory.

This option outputs information about the execution environment, including the version of Node.js, npm, and local and global installations of ESLint.

• Argument Type: No argument.

The ESLint team may ask for this information to help solve bugs. When you use this flag, the CLI does not perform linting.

yarn dlx eslint --env-info 
1

pnpm dlx eslint --env-info 
1

This option prevents errors when a quoted glob pattern or --ext is unmatched. This does not prevent errors when your shell can’t match a glob.

• Argument Type: No argument.

npx eslint --no-error-on-unmatched-pattern --ext .ts "lib/*" 
1

yarn dlx eslint --no-error-on-unmatched-pattern --ext .ts "lib/*" 
1

pnpm dlx eslint --no-error-on-unmatched-pattern --ext .ts "lib/*" 
1

bunx eslint --no-error-on-unmatched-pattern --ext .ts "lib/*" 
1

This option causes ESLint to exit with exit code 2 if one or more fatal parsing errors occur. Without this option, ESLint reports fatal parsing errors as rule violations.

• Argument Type: No argument.

npx eslint --exit-on-fatal-error file.js 
1

yarn dlx eslint --exit-on-fatal-error file.js 
1

pnpm dlx eslint --exit-on-fatal-error file.js 
1

bunx eslint --exit-on-fatal-error file.js 
1

Flat Config Mode Only. This option suppresses both File ignored by default and File ignored because of a matching ignore pattern warnings when an ignored filename is passed explicitly. It is useful when paired with --max-warnings 0 as it will prevent exit code 1 due to the aforementioned warning.

• Argument Type: No argument.

npx eslint --no-warn-ignored --max-warnings 0 ignored-file.js 
1

yarn dlx eslint --no-warn-ignored --max-warnings 0 ignored-file.js 
1

pnpm dlx eslint --no-warn-ignored --max-warnings 0 ignored-file.js 
1

bunx eslint --no-warn-ignored --max-warnings 0 ignored-file.js 
1

This option allows ESLint to exit with code 0 when no file or directory patterns are passed. Without this option, ESLint assumes you want to use . as the pattern. (When running in legacy eslintrc mode, ESLint will exit with code 1.)

• Argument Type: No argument.

npx eslint --pass-on-no-patterns 
1

yarn dlx eslint --pass-on-no-patterns 
1

pnpm dlx eslint --pass-on-no-patterns 
1

bunx eslint --pass-on-no-patterns 
1

This option outputs debugging information to the console. Add this flag to an ESLint command line invocation in order to get extra debugging information while the command runs.

• Argument Type: No argument.

This information is useful when you’re seeing a problem and having a hard time pinpointing it. The ESLint team may ask for this debugging information to help solve bugs.

npx eslint --debug test.js 
1

yarn dlx eslint --debug test.js 
1

pnpm dlx eslint --debug test.js 
1

bunx eslint --debug test.js 
1

This option outputs the help menu, displaying all of the available options. All other options are ignored when this is present. When you use this flag, the CLI does not perform linting.

• Argument Type: No argument.

This option outputs the current ESLint version onto the console. All other options are ignored when this is present. When you use this flag, the CLI does not perform linting.

• Argument Type: No argument.

yarn dlx eslint --version 
1

pnpm dlx eslint --version 
1

This option outputs the configuration to be used for the file passed. When present, no linting is performed and only config-related options are valid. When you use this flag, the CLI does not perform linting.

• Argument Type: String. Path to file.
• Multiple Arguments: No

npx eslint --print-config file.js 
1

yarn dlx eslint --print-config file.js 
1

pnpm dlx eslint --print-config file.js 
1

bunx eslint --print-config file.js 
1

This option adds a series of detailed performance statistics (see Stats type) such as the parse-, fix- and lint-times (time per rule) to result objects that are passed to the formatter (see Stats CLI usage).

• Argument Type: No argument.

This option is intended for use with custom formatters that display statistics. It can also be used with the built-in json formatter.

npx eslint --stats --format json file.js 
1

yarn dlx eslint --stats --format json file.js 
1

pnpm dlx eslint --stats --format json file.js 
1

bunx eslint --stats --format json file.js 
1

This option enables one or more feature flags for ESLint.

• Argument Type: String. A feature identifier.
• Multiple Arguments: Yes

npx eslint --flag x_feature file.js 
1

yarn dlx eslint --flag x_feature file.js 
1

pnpm dlx eslint --flag x_feature file.js 
1

bunx eslint --flag x_feature file.js 
1

This option starts the ESLint MCP server for use with AI agents.

• Argument Type: No argument.
• Multiple Arguments: No

When linting files, ESLint exits with one of the following exit codes:

• 0: Linting was successful and there are no linting errors. If the --max-warnings flag is set to n, the number of linting warnings is at most n.
• 1: Linting was successful and there is at least one linting error, or there are more linting warnings than allowed by the --max-warnings option.
• 2: Linting was unsuccessful due to a configuration problem or an internal error.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4