01-06-2002
A hint if you're trying to find information on any command - use the man page.
Just type in "man command_name".
Now if you don't know what the command is - as I figure you didn't in this instance - then try using "man -k search_word"
The -k does a keyword search through man and gives you a list of instances where this keyword is in the command name or command description....i.e for the "permissions" on a file
$ man -k permissions
chmod chmod (1) - change the permissions mode of a file
fbtab logindevperm (4) - login-based device permissions
logindevperm logindevperm (4) - login-based device permissions
uucheck uucheck (1m) - check the uucp directories and permissions file
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LEARN ABOUT POSIX
logindevperm
logindevperm(4) File Formats logindevperm(4)
NAME
logindevperm, fbtab - login-based device permissions
SYNOPSIS
/etc/logindevperm
DESCRIPTION
The /etc/logindevperm file contains information that is used by login(1) and ttymon(1M) to change the owner, group, and permissions of
devices upon logging into or out of a console device. By default, this file contains lines for the keyboard, mouse, audio, and frame buffer
devices.
The owner of the devices listed in /etc/logindevperm is set to the owner of the console by login(1). The group of the devices is set to the
owner's group specified in /etc/passwd. The permissions are set as specified in /etc/logindevperm.
Fields are separated by TAB and/or SPACE characters. Blank lines and comments can appear anywhere in the file; comments start with a hash-
mark, ` # ', and continue to the end of the line.
The first field specifies the name of a console device (for example, /dev/console). The second field specifies the permissions to which the
devices in the device_list field (third field) will be set. These permissions must be expressed in octal format. For example, O774. A
device_list is a colon-separated list of device names. Note that a device name must be a /dev link. A device entry that is a directory
name and ends with "/*" specifies all entries in the directory (except "." and ".."). For example, "/dev/fbs/*" specifies all frame buffer
devices.
Once the devices are owned by the user, their permissions and ownership can be changed using chmod(1) and chown(1), as with any other user-
owned file.
Upon logout the owner and group of these devices will be reset by ttymon(1M) to owner root and root's group as specified in /etc/passwd
(typically other). The permissions are set as specified in the /etc/logindevperm file.
FILES
/etc/passwd File that contains user group information.
SEE ALSO
chmod(1), chown(1), login(1), ttymon(1M), passwd(4)
NOTES
/etc/logindevperm provides a superset of the functionality provided by /etc/fbtab in SunOS 4.x releases.
SunOS 5.10 22 Oct 2003 logindevperm(4)