Partitions the disk for putting /Users on a separate partition

partition-disk.sh

#!/bin/bash
#----------VARIABLES---------
echo "Checking hard disk ID..."
hardDiskID=$(diskutil list | awk '/GUID_partition_scheme/ {print $5}')

#----------------------------
#-----------SCRIPT-----------
#----------------------------
echo "Checking if Users partition exists..."
    
# List the disks available and grep for Users  
diskutil list | grep "Users HD"
    
# If the last command exits with status 1 (failed--meaning no Users partition was found), then
if [ $? = 1 ];then
	echo -e "Creating Users and Recovery partitions...\n"
	
        # Partition the disk with three partitions using GPT
        # The first should be JHFS+, named Macintosh HD, and use the first 30% of the disk
        # The second should be the same as above, but use 68%
        # The last partition should use the Remainder of the disk
        diskutil partitionDisk $hardDiskID 3 GPT JHFS+ "Macintosh HD" 30% JHFS+ "Users HD" 68% JHFS+ "Recovery HD" R;

else
	echo "Users partition already exists...no changes made."
fi