README file for the admutils V1.11 for Linux.

LICENSE:
This software is distributed as is without any warranty what so ever.
With respect to copyrights it is covered by the GNU Public License.

This is version 1.11 (18-Ayg-94):
	Finally got around to making it a non-alpha version. Just a
	little cleanup in Makefile

Version 1.10b (8-Jun-94):
	David A. Holland <dholland@husc.harvard.edu> made me aware of a
	security leak in passwd and chsh. /etc/ptmp could be forced to
	be world-writeable. Fixed by hardwiring an umask of 022 into
	passwd and chsh.

	Vesa Ruokonen <ruokonen@taivas.lut.fi> sent me a new pathnames.h
	file that shouldn't conflict with paths.h.

	Cleaned the source a bit for -Wall

Version 1.10a (31-May-94):
	Vesa Ruokonen <ruokonen@taivas.lut.fi> provided a patch for
	passwd.c such that it will work for multiple usernames for
	the same uid. I mimicked his actions on chsh.c. In both cases
	I added a check to ensure that even if utmp is hacked, one can
	only change the password for users with the same uid.

Version 1.9 (9-Feb-94):
	Vesa Ruokonen suggested that newgrp should support passwords in
	/etc/group. It now does. I mostly rewrote newgrp to make it
	cleaner.

Version 1.8 (19-Jan-94):
	Rick Faith provided several patches, especially for passwd.c and
	some man-pages.

Version 1.7 (3-Nov-93): changes since 1.6
	Shutdown can now be used as a login shell. I forget who sent me the
	patch. Example /etc/passwd entry:

	shutdown:dLbVbIMx7bVHw:0:0:Stopper:/:/etc/halt

	The package should now be prepared to have shutdown in /sbin as well
	as in /etc. utmp and wtmp are allowed in /usr/adm too. Both things 
	are configurable in the Makefile.

	<flebbe@cygnus.tat.physik.uni-tuebingen.de> Olaf Flebbe provided a
	patch for chsh.c to make it work.

	This version is built under linux 0.99.13 with gcc 2.4.3 and 
	libc 4.4.1

Version 1.6 (1-Jun-93)
	Shutdown now looks more like shutdown on SunOS, but not quite. Most
	of this was done by Scott Telford (s.telford@ed.ac.uk), but I 
	butchered his patches somewhat. This version was built under Linux
	0.99.9 with GCC 2.3.3 and libc 4.3.3.

	"make install" will now install shutdown in /etc instead of /usr/bin

Version 1.5 (13-Dec-92)
	This version is tested and built under Linux 0.98P6 with gcc-2.2.2d7
	You will have a hard time making it work with the older compilers and
	libraries.

	Su is now deprecated. I believe that the GNU/FSF version is better.

CONTENTS.
last	-	A new and better last command, a port from BSD done by
		Michael Haardt.
		I put a couple of if's in so LOGIN_PROCESS entries in wtmp
		are not printed.

chsh	-	CHangeSHell changes the shell entry in the passwd file.
		Written from scratch by me.

passwd	-	Changes the password in the passwd file.
		Also done from scratch by me.

su	-	A su(1) command by me.

newgrp	-	Sets the gid if possible, ala su(1), written by Michael
		Haardt.

shutdown -	Shuts down linux. Supports timed shutdowns, and sends
		warnings to all users currently logged in. It then
		kills all processes and unmounts file-systems etc.

		Shutdown also doubles as halt and reboot commands.

		Shutdown leaves the file /etc/nologin behind after shutdown,
		it is wise to have a "rm -f /etc/nologin" in ones /etc/rc

		Shutdown now supports a -s switch, that works in connection 
		with the init program in poeigl-1.7 or later, so a singleuser
		reboot is possible.

		Rick Sladkey <jrs@world.std.com> provided patches for better
		umounting code, needed in connection with NFS.

		Remy Card <card@masi.ibp.fr> provided patches for support for
		fastboot/fasthalt. These create a /fastboot file on shutdown,
		and /etc/rc may check for the existance of this file, to 
		optionally skip fsck.

example.rc	An example of an /etc/rc file. Edit it to suit your own setup.

ctrlaltdel -	Sets the behaviour of the Ctrl-Alt-Del combination.
		"ctrlaltdel hard" makes the key-combination instantly reboot
		the machine without syncing the disk or anything. This may
		very well corrupt the data on the disk.

		"ctrlaltdel soft" makes the key-combination send a SIGINT to
		the init process. Such a command would typically be in /etc/rc.
		For this to make sense you must run the init from the
		poeigl-1.4 package or later. The System V compatible init in
		this package won't reboot the machine when it gets a SIGINT.
		Linux version 0.96b-PL1 or later is also needed for this
		feature to work.

init is gone as of V1.5, it was outdated and buggy. If you want a 
SYSV compatible init get the newest one from Mike Smoorenburg, called
sysvinit.tar.Z

INSTALLATION.
Simply do a

	make

and then (optionally) as root:

	make install


	- Peter (poe@daimi.aau.dk)