mdlc

mdlc scans markdown files for links and checks their status using a HTTP HEAD request. This includes checking both, status code and any redirects.

Note: mdlc does not verify whether fragment URLs (starting with '#') are correct.

Installation

Run make to compile mdlc. Run make install to install mdlc and completions to /usr/local/. Clean up with make clean and make uninstall, respectively.

To override /usr/local/ PREFIX variable use make -e PREFIX=/foo/bar/baz/.

Usage

mdlc - Markdown Link Checker

Description:
  mdlc scans markdown files for links and checks their status using a HTTP HEAD
  request. This includes checking both, status code and any redirects.

Notes:
  - mdlc does not verify whether fragment URLs (starting with '#') are correct.
  - '-' can be used as a file to read from stdin. Using it multiple times has
    no effect past the first occurence.

Usage:
  mdlc [flags] file [...]

Flags:
      --flat            flatten JSON output to a single array
      --format format   output format: columns, json, or tsv (default "columns")
  -h, --help            help for mdlc
  -v, --version         version for mdlc

Examples

Given a following README.md:

[byocss](https://sr.ht/~tymek/byocss) is a batteries excluded [Hugo](https://gohugo.io) theme.
It provides semantic HTML layout without any styling (see an example at [byocss.tymek.dev](https://byocss.tymek.dev)).
Only one CSS class and two IDs are used throughout byocss! IDs also double down as anchors for sections.
**If you know CSS and want to heavily customize a theme without building it from scratch, then byocss is for you!**

Running mdlc README.md yields the following output:

README.md	https://byocss.tymek.dev   	1	200	OK
README.md	https://gohugo.io          	1	200	OK
README.md	https://sr.ht/~tymek/byocss	1	200	Indirect URL to: https://sr.ht/~tymek/byocss/

mdlc handles link aliases too:

Here is an [example link][] and [another][], twice: [another][]. [This errors](incorrect#content). [This gets ignored](#content)

[example link]: https://example.com
[another]: https://example.com/another

Output:

-       #content                        1       0       Skip: fragment URL
-       https://example.com             1       200     OK
-       https://example.com/another     2       404     Not Found
-       incorrect#content               1       0       Head "incorrect#content": unsupported protocol scheme ""

Note: '-' come from the input being passed via stdin.

Name

[M]ark[d]own [L]ink [C]hecker.