what is my rrdtools version?

[goude]

Hello

Can somebody please tell me how I can find out the version of rrdtools installed in my system?
I am about to install cacti and I need to select the correct version of rrdtools I've got.

Many thanks

[goude]

Very sorry, I've got it.

I just got cacti working and got excited as a result I was typing:
rpm -qa | grep rrdtools instead of rpm -qa | grep rrdtool