#!/bin/bash

#trouver la quantité de mémoire
MEM=`free -m | grep "Mem:" | awk -F' '  '{print $2}'| sed 's/m//'`
#trouver la taille du disque sda
DISK=`fdisk -l | grep sda  | awk -F' '  '{print $3}'`
SDA="$DISK"000
SDA1=$(("$SDA"-"$MEM"))

# Partitioner ! 
(
echo o 			# Create a new empty DOS partition table
echo n 			# Add a new partition
echo p 			# Primary partition
echo 1 			# Partition number
echo   			# First sector (Accept default: 1)
echo +"$SDA1"M 	# Last sector (Accept default: varies)
echo n 			# Add a new partition
echo p 			# Primary partition
echo 2 			# partion number 2
echo   			# default, start immediately after preceding partition
echo   			# default, extend partition to end of disk
echo a 			# make a partition bootable
echo 1 			# bootable partition is partition 1 -- /dev/sda1
echo w 			# Write changes
) | sudo fdisk