Add to ~/.bashrc to ensure that ~/bin is in PATH if the directory exists and if not already present

bashrc.sh

# Checks if the "$HOME/bin" directory exists
if [ -d "$HOME/bin" ]; then
	# If "$HOME/bin" is not in PATH then add it
	case ":${PATH}:" in
		*:"$HOME/bin":*)
			;;
		*)
			export PATH="$HOME/bin:$PATH"
			;;
		esac
fi