No newline at end of file? These bash snippets will help you add new line at end of files.

add_newline.sh

#define file extensions that should be regarded

EXT=(css ejs erb gemspec gitignore html js json md mustache rake rb rdoc rspec ru scss sh sql txt ui xml xsd yardopts yml)
EXT=$(printf "\|%s" "${EXT[@]}")
EXT=${EXT:2}

# git:
git ls-files "*.*" | grep "\.\($EXT\)$" | sed "s/^/\'/; s/$/\'/;" | xargs sed -i -e '$a\'


# plain:
find . -name "*.*" | grep "\.\($EXT\)$" | sed "s/^/\'/; s/$/\'/;" | xargs sed -i -e '$a\'


# Explained:
#   EXT=(ext1 ext2 ...)               # Array of strings that will be used as file extensions
#
#   EXT=$(printf "\|%s" "${EXT[@]}")  # Join elements with '\|' for file name filtering later
#
#   EXT=${EXT:2}                      # Prepend first element of file extensions array (without leading '\|')
#
#   find . -name "*.*"                # List all files recursivly that contain a '.'
#   git ls-files "*.*"                # List all tracked files recursivly that contain a '.'
#
#   grep "\.\($EXT\)$"                # Filter output for defined file extensions
#
#   sed "s/^/\'/; s/$/\'/;"           # Quote file names
#
#   xargs sed -i -e '$a\'             # Actually add "\n" at end of file