web url to markdown command line function

html_to_md

#!/bin/zsh -e

function clipcopy() {
  emulate -L zsh
  local file=$1
  if [[ $OSTYPE == darwin* ]]; then
    if [[ -z $file ]]; then
      pbcopy
    else
      cat $file | pbcopy
    fi
  elif [[ $OSTYPE == cygwin* ]]; then
    if [[ -z $file ]]; then
      cat > /dev/clipboard
    else
      cat $file > /dev/clipboard
    fi
  else
    if (( $+commands[xclip] )); then
      if [[ -z $file ]]; then
        xclip -in -selection clipboard
      else
        xclip -in -selection clipboard $file
      fi
    elif (( $+commands[xsel] )); then
      if [[ -z $file ]]; then
        xsel --clipboard --input 
      else
        cat "$file" | xsel --clipboard --input
      fi
    else
      print "clipcopy: Platform $OSTYPE not supported or xclip/xsel not installed" >&2
      return 1
    fi
  fi
}

if [ -t 0 ]; then
  if [ -n "$1" ]; then
    pandoc -s -r html $1 -t markdown_github | clipcopy
    echo "  Markdown saved to clipboard"
  else
    echo "  a url is required like './html_to_md https://foo.bar'"
  fi
fi