GRIB2 installation of environnement and conversion to CSV

makefile

#!/usr/bin/env make
# DESCRIPTION
#   GRIB2 installation of environnement and conversion
#	see: https://gis.stackexchange.com/questions/26356/conversion-of-grib-and-netcdf-to-my-database
#
# USAGE
# 	make extract-data
#
# @author: Édouard Lopez <dev+mec@edouard-lopez.com>

gribFile=FranceHD10-grib2.grb
csvFile=FranceHD10-grib2.csv
csvFilteredFile=FranceHD10-grib2.light.csv
binDir=wgrib2-v0.1.9.4/bin
binFile=${binDir}/wgrib2

default: extract-data

# alias
install: wgrib2-v0.1.9.4/bin/wgrib2
get-data: ${gribFile}
convert2csv: ${csvFile}
extract-data: ${csvFilteredFile}

# @alias: extract-data
# Select only interesting data (considerably reduce file size)
${csvFilteredFile}: ${csvFile}
	@echo "Select only interesting data (considerably reduce file size)"
	@awk 'BEGIN {FS=OFS=","} {print $$3,$$5,$$6,$$7}' ${csvFile} > ${csvFilteredFile}

# @alias: convert2csv
# Convert GRIB2 file to CSV
${csvFile}: ${binFile} ${gribFile}
	@echo "Convert GRIB2 file to CSV"
	wgrib2 ${gribFile} -csv ${csvFile}

# @alias: get-data
# Get GRIB2 file dynamically
${gribFile}: 
	@echo "Get GRIB2 file dynamically"
	@echo "add a curl/wget command here"

# @alias: install
# Install executable if missing
${binFile}:
	@echo "Install executable if missing"
	@wget --quiet http://freefr.dl.sourceforge.net/project/opengrads/wgrib2/0.1.9.4/wgrib2-v0.1.9.4-bin-i686-glib2.5-linux-gnu.tar.gz
	@tar xvzf wgrib2-v0.1.9.4-bin-i686-glib2.5-linux-gnu.tar.gz

clean: 
	rm -rf ${csvFile} ${csvFilteredFile} ${binDir}/*
	# @clear
	echo "Cleaning Environment"

Dear Edouard,
Do you know any way or script that can convert a GRIB file to CSV file ?
Thank you for your kind help