MARKDOWNLINT(1)

NAME
markdownlint - Markdown lint tool

SYNOPSIS
mdl [ options ] [FILE.md|DIR ...]

DESCRIPTION
markdownlint checks an individual markdown file, or a directory of markdown files against a set of rules for syntax consistency. In its report back to the CLI, the Ruby based implementation reports the line(s) with an issue identified and how to improve it.

OPTIONS

-c, --config FILE
    The configuration file to use

-g, --git-recurse
    Only process files known to git when given a directory

-i, --[no]-ignore-front-matter
    Ignore YAML front matter

-j, --json
    JSON output

-l, --list-rules
    Don't process any files, just list enabled rules

-r, --rules RULE1,RULE2
    Only process these rules

-u, --rulesets RULESET1,RULESET2
    Specify additional ruleset files to load

-S, --sarif
    SARIF output

-a, --[no]show-aliases
    Show rule aliases instead of rule ID when viewing rules

-w, --[no]warnings
    Show kramdown warnings

-d, --skip-default-ruleset
    Don't load the default markdownlint ruleset

-s, --style STYLE
    Load the given style

-t, --tags TAG1,TAG2
    Only process rules with these tags

-v, --[no-]verbose
    Increase verbosity

-h, --help
    Show this message

-V, --version
    Show version

EXAMPLES
List the objectives of rules MD012, MD022, MD031 and MD032:

        mdl -r MD012,MD022,MD031,MD032 -l

Scrutinize file example.md only by rules MD012, MD022, MD031 and MD032:

        mdl -r MD012,MD022,MD031,MD032 ./example.md

Scrutinize file example.md by all rules available except MD033 and MD034:

        mdl -r ~MD033,~MD034 ./example.md

List all rules associated to the tag indentation:

        mdl -t indentation -l

Scrutinize file example.md by all rules without tag indentation:

        mdl -t ~indentation ./example.md

By default, markdownlint reports sort the issues by their rule. With GNU coreutils, your shell may resort the output by the corresponding line number of the file:

        mdl ./example.md | sort -t ":" -k 2 -n

Recurrent (personalized) check criteria can be saved as a style. Snippet mystyle.rb below showcases the keywords for comments, rules, tags, as well as the general syntax available:

        all  # initiate with all rules implemented
        rule 'MD013', :line_length => 100, :ignore_code_blocks => true
        exclude_rule 'MD014'
        # tag :blockquote
        exclude_tag :indentation

Rules a style file activates can be listed by

        mdl -s ./mystyle.rb -l

A personalized local style is applied during a check by markdownlint by

        mdl -s ./mystyle.rb ./example.md

AUTHOR
Mark Harrison, Ciro Santilli, Making GitHub Delicious, Brandon High, Matt Jankowski, David Anson, Tobias Bengfort, Loic Nageleisen, Will Fleming, Jean-Christophe Gay, sudodoki, David Rodríguez, Garth Braithwaite, Alexander Köplinger, Simon Symeonidis, Jakub Wilk, Eitan Adler, David Rodríguez, Phil Dibowitz, David Somers-Harris, copperwalls, John Trammell, Waylan Limberg, Ash, Paul B, Andrew Janke, Adam Strickland, Naomi Reeves, Olle Jonsson, Lauritz Hilsøe, Andrew Janke Roman Kolesnev, Alex Harvey, Tim Smith, Tim Smith, tsuburin, Mikael Kjaer, Caleb Buxton, Mark E. Schill, Waldir Pimenta, Ben van B, Jose Angel Pardillo Vela, androidseb, jtcarnes, Gene Gotimer, Sami Ahmed Siddiqui, Karol Babioch, Eric Knibbe, Alexander Jaust, orviz, Lennart Jern, Benjamin Quorning, Ting Chen, Kai, adamroyjones, Bengt Lüers, JP Hastings-Spital, nbehrnd, iafelix, ColemanTom, Levente Polyak, Gunes Bayir, Mathieu Rul, Markus Lehtonen

LICENSE
MIT

REPORTING BUGS
Report bugs to and suggest improvements on the project page,
https://github.com/markdownlint/markdownlint

VERSION
This is about markdownlint version 0.13.0 (October 2nd, 2023).