DSK=$(lsblk -l -oPATH,FSTYPE,TYPE  -p /dev/sda |grep 'part')
Pp=()
Pt=()
IFS=$'\n'   #newline ist separator (=ws wird mitgenommen)
pat='^([^ ]*) +([^ ]+) +.*$'
for line in $DSK; do
    echo $line
    if [[ $line =~ $pat ]]; then
        #li=${BASH_REMATCH[1]}${BASH_REMATCH[2]};
        pp=${BASH_REMATCH[1]}
        fs=${BASH_REMATCH[2]}
        #echo " pp $pp - fs $fs"
        Pp+=($pp)
        Pt+=($fs)
#    Pp+=("")
    fi
done

if [ "${Pt[0]}" != "vfdat" ]; then
 echo "OK1"
fi

if [ "${Pt[1]}" == "btrdfs" ]; then
 echo "OK2"
fi