Bash: Absolute Manage FileVault 2 status script

gistfile1.sh

#!/bin/bash

# Based on the FileVault 2 Encryption Check script by rtrouton
# https://github.com/rtrouton/rtrouton_scripts/blob/master/rtrouton_scripts/filevault_2_encryption_check/regular_script/filevault_2_encryption_check.sh

PATH='/usr/bin:/usr/sbin'

ST_NOTENABLED='Not Enabled'
ST_ENCRYPTING='Encrypting (%s%%)'
ST_ENCRYPTED='Encrypted'
ST_DECRYPTING='Decrypting (%s%%)'
ST_DECRYPTED='Decrypted'
ST_UNKNOWN='Unknown'

OS_VERSION="$(sw_vers | awk '/ProductVersion/ {print $2}')"
IFS=. read _ OS_MAJOR_POINT _ <<< "$OS_VERSION"

if ((OS_MAJOR_POINT >= 7)); then
	CORE_STORAGE_STATUS="$(diskutil cs list)"
	
	case "$CORE_STORAGE_STATUS" in
		*'No CoreStorage'* ) printf "$ST_NOTENABLED\n" ;;
		*'Logical Volume Family'* )
			ENCRYPTION_CONTEXT="$(awk '/Encryption Context/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
			
			if [[ "$ENCRYPTION_CONTEXT" = Present ]]; then
				ENCRYPTION_TYPE="$(awk '/Encryption Type/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
				
				case "$ENCRYPTION_TYPE" in
					AES-XTS ) 
						CONVERSION_STATUS="$(awk '/Conversion Status/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
						
						case "$CONVERSION_STATUS" in
							*Complete* ) printf "$ST_ENCRYPTED\n" ;;
							*Converting* )
								CONVERSION_DIRECTION="$(awk '/Conversion Direction/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
								
								if [[ "$CONVERSION_DIRECTION" = *forward* ]]; then
									SIZE_CONVERTED="$(awk '/Size \(Converted\)/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
									SIZE_TOTAL="$(awk '/Size \(Total\)/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
									CONVERTED_PERCENT="$(bc <<< "scale=1; $SIZE_CONVERTED * 100 / $SIZE_TOTAL")"
									printf "$ST_ENCRYPTING\n" "$CONVERTED_PERCENT"
								else
									printf "$ST_UNKNOWN\n"
								fi
							;;
						esac
					;;
					None )
						CONVERSION_DIRECTION="$(awk '/Conversion Direction/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
						
						case "$CONVERSION_DIRECTION" in
							*backward* )
								SIZE_CONVERTED="$(awk '/Size \(Converted\)/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
								SIZE_TOTAL="$(awk '/Size \(Total\)/ {print $3}' <<< "$CORE_STORAGE_STATUS")"
								CONVERTED_PERCENT="$(bc <<< "scale=1; $SIZE_CONVERTED * 100 / $SIZE_TOTAL")"
								printf "$ST_DECRYPTING\n" "$CONVERTED_PERCENT"
							;;
							*-none-* ) printf "$ST_DECRYPTED\n" ;;
							* ) printf "$ST_UNKNOWN\n" ;;
						esac
					;;
				esac
			fi
	esac
fi

exit 0