Want to connect webcam to BBB, but have some problems

I want to connect webcam to BBB

So I put the webcam’s USB into the BBB’s port,

and checked the connection with bash of cloud9ide by ‘lsusb’.

then it says

Bus 001 Device 002: ID 1b71:0056
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

also I checked the connection by ‘ls’,

and there was video0.

But if I try to do something with ‘v4l2-ctl’ command,

it doesn’t work and always says

bash: v4l2-ctl: command not found

How can I solve this problem??

And I want to know the way to show video from the webcam on website…

Help me plz

Do you have the debian package: "v4l-utils" installed?

Regards,