CentralNotice From Wikipedia, the free encyclopedia Jump to: navigation , search For the electropop band, see Null Device . This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed. (March 2014) Special device files /dev/full /dev/null /dev/random and /dev/urandom /dev/zero This box: view talk edit In some operating systems , the null device is a device file that discards all data written to it but reports that the write operation succeeded. This device is called /dev/null on Unix or Unix-like systems, NUL: or NUL on DOS and CP/M , \Device\Null on Windows NT , NIL: on Amiga operating systems, and the NL: on OpenVMS . In Windows Powershell , the equivalent is $null . It provides no data to any process that reads from it, ...