Custom bash function to generate a new markdown file for Jekyll, first arg is assumed to be post title, which becomes the filename in the format Jekyll is expecting. Auto open and save in Vim, if the post doesn't exist.

gistfile1.txt

function new_post() {
  cd ~/Sites/kevinquillen.com/_posts
  today=$(date +"%F")
  title=$1:l
  clean_title=${title//[^a-zA-Z0-9]/-}
  filename="$today-$clean_title.markdown"

  if [[ ! -a ./$filename ]]; then
    vim $filename -c 'w'
  else
    echo "File $filename already exists. Aborting."
  fi
}