Convert Markdown to HTML, PDF or MS Word (DOCX) from the command line using https://documentalchemy.com/

md2x.sh

#!/bin/bash
# Converts a Markdown file into an HTML, PDF or Microsoft Word document

# USAGE: md2x.sh <MARKDOWN-FILE> <FORMAT>
#
# EXAMPLE: md2x.sh README.md pdf

# This is your DocumentAlchemy API key.  It may be set via the
# environment variable named `DA_API_KEY`.
# (See <https://documentalchemy.com/> to get one of your own.)
API_KEY=${DA_API_KEY:-"403l1zh3dkbakyb9"}

# This is a flag that can prevent this script from `echo`ing
# unnecessary information.  It can be set via the environment
# variable `QUIET`.
# A clever person could make this into a command line parameter
# like `-q`.
QUIET=${QUIET:-FALSE}

# Note that you can set environment variables on a per-invocation
# basis by prefixing NAME=VALUE before the command.  For example:
#   API_KEY=my-key QUIET=true doc2docx *.doc

# utility function to show simple help
function usage {
  echo "USE: $0 <MARKDOWN-FILE> <pdf|html|docx>";
}

md_file="$1"
format="$2"
if [ -z "$md_file" ] || [ -z "$format" ]; then
  usage;
  exit 1;
else
  if ! [ -s "$md_file" ]; then
    usage;
    echo "File \"$md_file\" not found. Aborting.";
    exit 2;
  elif [ "$format" != "pdf" ] &&  [ "$format" != "html" ] &&  [ "$format" != "docx" ]; then
    usage;
    echo "Format must be one of 'pdf', 'html' or 'docx'. Found  \"$format\". Aborting.";
    exit 3;
  else
    outfile="`echo "${md_file}" | sed -E 's/\.[a-z]+$//'`.$format";
    $QUIET || echo "Converting '$md_file' into '`basename "$outfile"`'...";
    response=$(curl --silent \
                    --write-out %{http_code} -H "Authorization: da.key=$API_KEY" \
                    -X POST --form "document=@$md_file" \
                    https://documentalchemy.com/api/v1/document/-/rendition/$format \
                    -o "$outfile")
    if ! [ "$response" -eq "200" ]; then
      $QUIET || echo "WARNING: Expected a 200 response. Found $response instead.";
      exit 4;
    else
      $QUIET || echo "...OK. File '$outfile' created."
    fi
  fi
fi

See https://documentalchemy.com/ for information.