Command 'shell' not found, did you mean:

  command 'qshell' from deb qtile
  command 'spell' from deb spell
  command 'shelr' from deb shelr
  command 'jshell' from deb openjdk-11-jdk-headless
  command 'bshell' from deb avahi-ui-utils
  command 'pshell' from deb python-pyramid

Try: apt install <deb name>

root@wzy-VirtualBox:~#