You can check the OpenVZ version in Linux by running the following command in the terminal:
```
uname -r
```
If OpenVZ is installed and running, you should see an output similar to this: `2.6.32-042stab108.5`. The numbers after ‘stab’ represent the version of your OpenVZ kernel.
Alternatively, use the command:
```
vzctl —version
```
to get the version of vzctl utility. OpenVZ kernel and vzctl utility versions can be different.
Note: You must have root or sudo access to run these commands.
