Mayday….mayday, my /dev/null no longer exist help me…..

mknod /dev/null c 2 2
chmod 666 /dev/null

from man of mknod :

c ->      Type of device.  If the device is a block type device such as a
             tape or disk drive which needs both cooked and raw special files,
             the type is b.  All other devices are character type devices,
             such as terminal and pseudo devices, and are type c.

mknod name [b | c] major minor [owner:group]

NAME
     null — the null device

DESCRIPTION
     The null device accepts and reads data as any ordinary (and willing) file
     – but throws it away.  The length of the null device is always zero.

FILES
     /dev/null

Fiuhhhh…… 😉