# cgclassify > Move running task(s) to given `cgroups`. > More information: . - Move the process with a specific PID to the control group student in the CPU hierarchy: `cgclassify -g {{cpu:student}} {{1234}}` - Move the process with a specific PID to control groups based on the `/etc/cgrules.conf` configuration file: `cgclassify {{1234}}` - Move the process with a specific PID to the control group student in the CPU hierarchy. Note: The daemon of the service `cgred` does not change `cgroups` of the specific PID and its children (based on `/etc/cgrules.conf`): `cgclassify --sticky -g {{cpu:/student}} {{1234}}`