Networking I
Fall '97
UNIX Quiz 1


1.  I have three directories in my home directory.  Each has a different purpose.
    For each directory, fill in the appropriate value for the chmod command.  (3 pts)

    a)	public_html	holds the web pages I want available for public viewing

	chmod	755	public_html

    b)	data_files	holds files that my students may read, but may not change


	chmod	755	data_files

    c)	course_files	holds programs that only I may read or change

    
	chmod	700	course_files

2.  Your directory contains the following:  (4 pts)
    files:		directories:
    prog1.pas		public_html
    script1		mail
    file1.txt
    rain.dat
    page.html
    picture.jpg

    Explain the results of the following commands:

    a)	mv page.html index.html

rename page.html to index.html

    b)	mv index.html public_html

move ./index.html to public_html directory

    c)	mv picture.jpg public_html

move ./picture.jpg to public_html directory

    d)	mv rain.dat data_files

rename ./rain.dat to ./data_files (still a file)


3.  Write a description of the outcome of each command (be as detailed as possible):  (6 pts)

    a)	who | sort

print a sorted list of currently logged in users

    b)	who | grep mshibla

print "who" output of mshibla's login session

    c)	ps | sort | wc -l

sort a list of my currently running processes (?), then print a count of them
(why sort them?)

    d)	head -5 filename

print the first 5 lines of a file "filename"


4.  Write the command which will print to the screen the long listing (including
    file permissions, etc.) of the directory one screen at a time.  (1 pt)

ls -l | more


5.  In my directory, I have several files named netclass1, netclass2, netclass3, etc.
    Write a single command which will make all of these files readable, writeable,
    and executable by me only.	(1 pt)

chmod 700 ~/netclass*


6.  Laura Goldhar has a gif file of the Blair banner (banner.gif) in her public_html
    directory.  You want to copy it to your public_html directory.  You are currently
    in your home directory.  Write the commands you would use to do this.  (2 pts)

cp ~lgoldhar/public_html/banner.gif public_html


7.  You have two versions of a program in your directory.  One is called version1.pas
    and the other is called version2.pas.  You have decided to submit version2.pas to 
    your teacher for grading.  Your teacher requires that your program be named
    "yourlastname.pas" and that you send it to her as an attachment.  Write the
    commands you will type in order to meet these requirements.  (2 pts)

mv version2.pas youlastname.pas
pine
c (fill out address and subject)
^J (or fill out Attchmnt: field)
yourlastname.pas
^X (to send)

-or- (not fulfilling the requirements of the question, but what I'd do)

cat version2.pas | mail teacher -s "yourlastname.pas"


8.  Write the command you need to change your password and describe the guidelines
    for a good password.  (1 pt)

passwd

5-8 characters, not a dictionary word, not a name, with at least two different
types of characters in it (letters and numbers, letters and punctuation, etc.)