Thank you so much. Looks like it gets created on fly On Wed 19 Sep, 2018, 9:24 AM Anthony Thompson, <anthony.thomp...@nt.gov.au> wrote:
> From the USS User Guide, Ch. 14 (SA23-2279-30). > > A character special file defines one of the following: > – A terminal (/dev/ptypnnnn and /dev/ttypnnnn). > – The default controlling terminal for a process (/dev/tty). > – A null file (/dev/null). Data written to this file is discarded; hence, > it is known as the bit bucket. This file is always empty for reading. > – A zero file (/dev/zero). Data written to this file is discarded and > binary zeros are supplied for any amount read from it. > – The random number files (/dev/random and /dev/urandom). These files > provide random numbers for cryptographic purposes. > – A file descriptor file (/dev/fdn or /dev/fd/n). > – A system console file (/dev/console). Data that is written to this file > is sent to the console using a write-to-operator (WTO) that displays the > data on the system console. > – A UNIX domain socket name file. This is a path name that specifies the > socket address for a UNIX domain socket. The path name is assigned by the > application programmer; there is no convention for the name. The operating > system creates the file. > – A Communications Server remote tty file (for example, rtynnnn) that > corresponds to the requesting terminal on the originating Communications > Server node. The name is assigned by the Communications Server > administrator. > – The Communications Server character special file (/dev/ocsadmin) that > supports ioctl functions for Communications Server administrative functions. > Character special files are dynamically created by the operating system > when they are first referenced. However, they can also be explicitly > created by a superuser (for instance, in order to assign different > permissions). > > Ant. > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Jake Anderson > Sent: Wednesday, 19 September 2018 2:23 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: OMVS file type Char > > Hi > > I have got a dummy query > > I was going through /var/dpi_socket and see it's a Character special type > of file > > > I am going through the USS guide but I found any hit about this type of > file. Also I can't select or copy this files . > > Can someone please explain what are Character special type file ? > > Jake > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email > to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
