CS209-01 Summer 1 2005 - Lab 4 / HW 3

read man page on all the commands below that we covered in class (try them while reading)
describe what is each command  / daemonfor. Choose 3 different options for each command  listed 
and discuss when and why would you use them. Provide an example for each case.
	fdisk
	umask
	useradd
	usermod
	userdel
	pwconv
	newgrp
	grunpconv
	crontab
	at

create user "John Class" without using useradd,  groupadd, 
     or any other high level program
	login name: jclass
	home directory: /cs209/jclass
	everything else : choose and discuss your choices -what did you do, how and why
	log into the system as jclass
	in your report list all the steps needed to add the user above

as user jclass write both rotate scripts as discussed in the class
	try them
	modify them so that the log files are in /cs209/jclass/logs/

create crontab entries for jclass that will run the rotate scripts every 10 minutes:
		rotate.csh 	0,10,20,...
		rotate.sh	5,15,25,..
	once all running how far back will the log files go ?
	modify the scripts and crontab so that each file contains info for a whole day and
		you can check the logs 2 weeks back and also
		each script identifies itself

create another script (sh or csh) and entry in the crontab for jclass 
		that will append info below to the log file every minute:
	current date and time
	current load and users logged in
	all processes running on the machine (long listing)
	information about disk partitions  (how much disk space is used in KBytes - df)
	
while working on your lab machine create EXT2 file system on a floppy disk 
	and copy all files you created  or modified on it while preserving 
	the directory tree structure and file attributes
	(/etc/fstab will be etc/fstab on a floppy): 
		passwd, shadow, fstab, jclass's home dir,..

	describe ALL steps 

submit the floppy disk together with your report 
	you can also attach the files to your e-mail 
	+ add directory listing from floppy (ls -alR)
Do these exercises from the book:
	E6.1
	E6.2
	E6.3
	E8.2