root@vps708645:~# ukuu --help
ukuu v18.9.3
Distribution: Ubuntu 18.04.3 LTS
Architecture: amd64
Running kernel: 5.2.8-050208-generic
Kernel version: 5.2.8-050208-generic

Ubuntu Kernel Update Utility v18.9.3 by Tony George (teejeetech@gmail.com)

Syntax: ukuu <command> [options]

Commands:

  --check             Check for kernel updates
  --notify            Check for kernel updates and notify current user
  --list              List all available mainline kernels
  --list-installed    List installed kernels
  --install-latest    Install latest mainline kernel
  --install-point     Install latest point update for current series
  --install <name>    Install specified mainline kernel
  --remove <name>     Remove specified kernel
  --purge-old-kernels Remove installed kernels older than running kernel
  --download <name>   Download packages for specified kernel
  --clean-cache       Remove files from application cache

Options:

  --clean-cache     Remove files from application cache
  --yes             Assume Yes for all prompts (non-interactive mode)

Notes:
1. Comma separated list of version strings can be specified for --remove and --d                                                                                                             ownload

root@vps708645:~# ukuu --check
ukuu v18.9.3
Distribution: Ubuntu 18.04.3 LTS
Architecture: amd64
Running kernel: 5.2.8-050208-generic
Kernel version: 5.2.8-050208-generic
Cache: /root/.cache/ukuu
Temp: /tmp/ukuu/5X958dUy
aria2c version: 1.33.1
Fetching index from kernel.ubuntu.com...
OK
----------------------------------------------------------------------
Found installed: 5.2.8-050208.201908091630
----------------------------------------------------------------------
No updates found
----------------------------------------------------------------------
root@vps708645:~# ukuu --list-installed
ukuu v18.9.3
Distribution: Ubuntu 18.04.3 LTS
Architecture: amd64
Running kernel: 5.2.8-050208-generic
Kernel version: 5.2.8-050208-generic
Cache: /root/.cache/ukuu
Temp: /tmp/ukuu/bmbRqLHN
----------------------------------------------------------------------
Found installed: 5.2.8-050208.201908091630
----------------------------------------------------------------------
root@vps708645:~#