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Full Discussion: Determine Linux Version.
Operating Systems Linux Slackware Determine Linux Version. Post 92625 by scotbuff on Tuesday 13th of December 2005 08:59:19 AM
Old 12-13-2005
Be Careful With /etc/issue

I would not count on /etc/issue. I would venture to guess that possibly you could apply a major update and /etc/issue never changes. The file /etc/issue is sort of like a message of the day type file. On a SuSe machine I updated from 8.2 to 9.1 a year or so ago, that type of file did not update and the login prompt greeted you with an 8.2 banner despite the machine having been updated.

Just something to think about. The release and version files did update in my case but I would say that there is a chance these could be wrong also. But the /etc/issue would be lowest on my list to check.
 

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FGETTY(8)						   System Administrator's Manual						 FGETTY(8)

NAME
fgetty - a small getty for linux SYNOPSIS
fgetty tty [--noclear] [--long-hostname] DESCRIPTION
The command fgetty is normally invoked by init(8), opens a tty port, prompts for a login name and invokes the /bin/login command. OPTIONS
--noclear makes fgetty not clear the screen before displaying the login prompt. --long-hostname makes fgetty display the full hostname in the login prompt. FILES
/etc/issue printed before the login prompt /etc/inittab init(8) configuration file /var/run/utmp the system status file ISSUE ESCAPES
The issue-file (/etc/issue or the file may contain certain escape codes to display the system name, date and time etc. All escape codes consist of a backslash () immediately followed by one of the letters explained below. d the current date. (eg: 2002-01-19) s the system name, the name of the operating system. (eg: Linux) l the name of the current tty line. (eg: tty3) m the architecture identifier of the machine (eg: i586) n the nodename of the machine, also known as the hostname. (eg: sirius) o the domainname of the machine. (eg: (none)) r the release number of the OS. (eg: 2.4.3-i) t the current time. (eg: 14:51:51) u the number of current users logged in. (eg: 4) U the string "1 user" or "<n> users", where <n> is the number of current users logged in. (eg: 4 users) v Insert the version of the OS. (eg: #2 Fre Jan 18 23:05:45 CET 2002) ENVIRONMENT VARIABLES
HOST is set to your hostname TERM is set to linux TTY is set to the current tty line RETURN VALUES
1 could not chown/chmod tty device 3 could not open tty device 4 not a typewriter 5 vhangup failed 6 could not open tty (can't happen) 7 dup failed 8 could not exec login 9 read returned an unexpected error 10 unprintable character in login name 11 login name too long (>40) 13 user name started with a dash 23 received SIGQUIT AUTHOR
Felix von Leitner <felix-fgetty@fefe.de> Homepage: http://www.fefe.de/fgetty/ fgetty 2002-01-19 FGETTY(8)
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