documentation

  aggiornamenti:
  sudo su
  apt update
  apt upgrade

  start ssh server:
  sudo /etc/init.d/ssh restart
  
  cat /etc/os-release
  cat /etc/issue
  lsb_release -d
  sistema operativo

  cat /proc/meminfo
  informazioni sulla memoria

  cat /proc/cpuinfo
  informazioni sul processore

  sudo -i
  superuser

  create bootable usb drive:
  mbroby$ sudo diskutil umountDisk /dev/disk2
  Unmount of all volumes on disk2 was successful
  mbroby$ sudo /bin/dd if=boot_centos7.iso of=/dev/disk2
  1153024+0 records in
  1153024+0 records out
  590348288 bytes transferred in 705.965774 secs (836228 bytes/sec)