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Full Discussion: Why files get created with srwxrwxrwt under /dev/?
Operating Systems Solaris Why files get created with srwxrwxrwt under /dev/? Post 302955153 by YShivak on Tuesday 15th of September 2015 02:08:29 AM
Old 09-15-2015
Why files get created with srwxrwxrwt under /dev/?
Code:
$ uname -a
SunOS myhost 5.11 11.2 sun4v sparc sun4v

I see following 0 byte (regular)files getting created under /dev/mydisks directory :

Code:
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 VF_10
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 DATA1
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 DATA2

Code:
$ echo test > testfile
bash: testfile: Permission denied

Even though the command above returns an error I see the file being created with 'srwxrwxrwt'
Code:
$ ls -ltr
total 0
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 testfile
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 VF_10
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 DATA1
srwxrwxrwt   1 gusr   dba       0 Sep 14 23:57 DATA2

$ file testfile
testfile:       socket

Note that this happens for regular files only under /dev directory. What setting or env. is causing this behavior?
Why 0 byte files? Why regular files get 'srwxrwxrwt' under /dev?
Are these really 'socket' files?
Last edited by DukeNuke2; 09-15-2015 at 03:56 AM..
 

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LEARN ABOUT XFREE86

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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