markdown-link-check
markdown-link-check documentation
- Version in MegaLinter: 3.11.2
 - Visit Official Web Site
 - See How to configure markdown-link-check rules
- If custom 
.markdown-link-check.jsonconfig file isn't found, .markdown-link-check.json will be used 
 - If custom 
 - See How to disable markdown-link-check rules in files
 
Configuration in MegaLinter
- Enable markdown-link-check by adding 
MARKDOWN_MARKDOWN_LINK_CHECKin ENABLE_LINTERS variable - Disable markdown-link-check by adding 
MARKDOWN_MARKDOWN_LINK_CHECKin DISABLE_LINTERS variable 
| Variable | Description | Default value | 
|---|---|---|
| MARKDOWN_MARKDOWN_LINK_CHECK_ARGUMENTS | User custom arguments to add in linter CLI call Ex: -s --foo "bar" | 
|
| MARKDOWN_MARKDOWN_LINK_CHECK_FILTER_REGEX_INCLUDE | Custom regex including filter Ex: (src\|lib) | 
Include every file | 
| MARKDOWN_MARKDOWN_LINK_CHECK_FILTER_REGEX_EXCLUDE | Custom regex excluding filter Ex: (test\|examples) | 
Exclude no file | 
| MARKDOWN_MARKDOWN_LINK_CHECK_CLI_LINT_MODE | Override default CLI lint mode - file: Calls the linter for each file- list_of_files: Call the linter with the list of files as argument- project: Call the linter from the root of the project | 
list_of_files | 
| MARKDOWN_MARKDOWN_LINK_CHECK_FILE_EXTENSIONS | Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all filesEx: [".py", ""] | 
[".md"] | 
| MARKDOWN_MARKDOWN_LINK_CHECK_FILE_NAMES_REGEX | File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: ["Dockerfile(-.+)?", "Jenkinsfile"] | 
Include every file | 
| MARKDOWN_MARKDOWN_LINK_CHECK_PRE_COMMANDS | List of bash commands to run before the linter | None | 
| MARKDOWN_MARKDOWN_LINK_CHECK_POST_COMMANDS | List of bash commands to run after the linter | None | 
| MARKDOWN_MARKDOWN_LINK_CHECK_CONFIG_FILE | markdown-link-check configuration file nameUse LINTER_DEFAULT to let the linter find it | 
.markdown-link-check.json | 
| MARKDOWN_MARKDOWN_LINK_CHECK_RULES_PATH | Path where to find linter configuration file | Workspace folder, then MegaLinter default rules | 
| MARKDOWN_MARKDOWN_LINK_CHECK_DISABLE_ERRORS | Run linter but consider errors as warnings | false | 
| MARKDOWN_MARKDOWN_LINK_CHECK_DISABLE_ERRORS_IF_LESS_THAN | Maximum number of errors allowed | 0 | 
| MARKDOWN_MARKDOWN_LINK_CHECK_CLI_EXECUTABLE | Override CLI executable | ['markdown-link-check'] | 
MegaLinter Flavours
This linter is available in the following flavours
| Flavor | Description | Embedded linters | Info | |
|---|---|---|---|---|
![]()  | 
all | Default MegaLinter Flavor | 113 | |
| cupcake | MegaLinter for the most commonly used languages | 81 | ||
| documentation | MegaLinter for documentation projects | 47 | ||
| dotnet | Optimized for C, C++, C# or VB based projects | 59 | ||
| go | Optimized for GO based projects | 49 | ||
| java | Optimized for JAVA based projects | 51 | ||
| javascript | Optimized for JAVASCRIPT or TYPESCRIPT based projects | 56 | ||
| php | Optimized for PHP based projects | 50 | ||
| python | Optimized for PYTHON based projects | 58 | ||
| ruby | Optimized for RUBY based projects | 47 | ||
| rust | Optimized for RUST based projects | 47 | ||
| salesforce | Optimized for Salesforce based projects | 50 | ||
| swift | Optimized for SWIFT based projects | 47 | ||
| terraform | Optimized for TERRAFORM based projects | 51 | 
Behind the scenes
How are identified applicable files
- File extensions: 
.md 
How the linting is performed
- markdown-link-check is called once with the list of files as arguments (
list_of_filesCLI lint mode) 
Example calls
markdown-link-check myfile.md
markdown-link-check -c .markdown-link-check.json myfile.md
Help content
Usage: markdown-link-check [options] [filenamesOrUrls...]
Options:
  -V, --version           output the version number
  -p, --progress          show progress bar
  -c, --config [config]   apply a config file (JSON), holding e.g. url specific
                          header configuration
  -q, --quiet             displays errors only
  -v, --verbose           displays detailed error information
  -a, --alive <code>      comma separated list of HTTP codes to be considered
                          as alive
  -r, --retry             retry after the duration indicated in 'retry-after'
                          header when HTTP code is 429
  --projectBaseUrl <url>  the URL to use for {{BASEURL}} replacement
  -h, --help              display help for command
Installation on mega-linter Docker image
- NPM packages (node.js):
 
