CSCI 57 and 65: Introduction to Unix Courses

Laboratory Assignment 3

ASSIGNMENT DUE: see calendar on the web

• On all homework please include
• Your Name
• Course Number
  
• Date
• ecst login name
  

• This homework is to be printed from unix.  You must include the printing cover page (details given in lab).
• To print use the command lpr -Pparrot <filename>
• To view the printer queue use the command lpq -Pparrot
• (parrot is the name of the printer in our lab)
  

• Please answer the following questions (answers and/or help given in lab).  Use pico (or other editor) to type your answers.
  

1. How can you customize the Bash shell prompt?
2. How do you create a Bash alias (Give an example)?
   
3. What is the command for changing your default shell?
4. What machine do we have to go to in order to change our default shell on campus?
5. What does a .forward file do?
6. What is the PATH variable for?
7. How can you view your current PATH variable?
   
8. What command can you use to search for a term in a man page?
9. How do you exit from viewing a man page?
10. How can you go back a screenful when viewing a man page?
11. What does a pipe do?  Give an example of using one.
    
12. What wildcard matches zero or more characters?
    
13. What does the ln command do?
14. What command do you use to change your password in unix?
15. What command do you use to exit from a shell in unix?
16. What does the -R option for the command ls do (read the man page, type man ls)?
17. Take a look at the man page for bash. What person or organization holds the copyright for bash?
18. What do the -f and -i options for rm do (read the man page, man rm)?
19. What does the -r option for rm do (read the man page, man rm)?
20. What is inside the file /user/s/toddj/somefile.txt (view the file)?
    
21. Start the pico editor by typing pico, next type <control>-G to view the help, <control>-V to view the next page of help, <control>-X to exit.  Alternatively read the man page for pico which will also have this information (type man pico).  Note: none of the following answers should mention arrow keys.
    
1. How can you move forward a character (without the arrow keys)?
2. How can you move backward a character (without the arrow keys)?
3. How can you move forward a page of text?
4. How can you move backward a page of text?
5. How can you move to the beginning of the current line?
6. How can you move to the end of the current line?
7. How can you search for text neglecting case?
8. How can you cut and paste text in pico?
22. Read the preamble to the GNU General Public License, there is a copy at /user/s/toddj/gpl.txt 
    
1. In your own words what does this license mean (2-5 sentences)?