Attempting to create an RAID array in Ubuntu server 20.10

I'm attempting to create a RAID 0 RAID array on Ubuntu server 21.10, but I keep getting the following error: mdadm: An option must be given to set the mode before a second device Here is the syntax I used:

~$ sudo mdadm –create –verbose /dev/md0 –level=0 –raid-devices=2 /dev/sdb1 /dev/sdc1
mdadm: An option must be given to set the mode before a second device
(–verbose) is listed

I've seen some websites that list the syntax as:

sudo mdadm -–create -–verbose /dev/md0 -–level=0 -–raid-devices=2 /dev/sdb1 /dev/sdc1

To which I get:

mdadm: invalid option -- '?'
Usage: mdadm --help
for help

I've tried removing the partitions and attempting the command without partitions, still no joy. I've tried the -c vs the --create option, still no fun.

Do I need to install any additional packages in order to create an array?

I've seen some websites that list the syntax

The first place to look to find the behaviour/syntax of a command is the man pages on your local machine. That way you will be reading the documentation for the binary installed on your machine.

I don't know what version is installed on your machine, but on the one in front of me and others I have used 'create' is directive and not an option; it shouldn't be prefixed with a '-'/