.bashrc.d /.init.sh for directory based bashrc with "Colorful logging helper"

.init.sh

#!/usr/bin/env bash
# Originally from detro (Ivan De Marino)
# https://github.com/detro/.bashrc.d/blob/master/.init.sh

THIS_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &>/dev/null && pwd )"

# Common utilities
case "${OSTYPE}" in
  solaris*) OSNAME="SOLARIS" ;;
  darwin*)  OSNAME="MACOSX" ;;
  linux*)   OSNAME="LINUX" ;;
  bsd*)     OSNAME="BSD" ;;
  msys*)    OSNAME="WINDOWS" ;;
  *)        OSNAME="${OSTYPE}" ;;
esac

# Source all the 'bashrc.d' files
for BASHRC_D_FILE in `ls ${THIS_DIR}/*.sh`; do
    source $BASHRC_D_FILE
done

# Colorful logging helper: INFO (green) level
function info() {
	echo -e "\e[32m*\e[39m ${*}"
}

# Colorful logging helper: WARN (orange) level
function warn() {
	echo -e "\e[33m*\e[39m ${*}"
}

# Colorful logging helper: ERROR (red) level
function error() {
	echo -e "\e[31m*\e[39m ${*}"
}

# Colorful logging helper: just a new line
function nln() {
	echo ""
}

Changed shebang to #!/usr/bin/env bash