YOUSEF RABAH 
CS256, Spring 2002
Lab 3, 1/Feb

Answer the following questions:

o How do you change your password?
 You change password with command yppasswd.
o What is the name or your shell program?
 name is  /bin/bash
o What does apropos do?
 It searchs the what is data base files containing short descriptions of
     system commands for keywords and displays the result on the standard out-
     put.
o What does pwd do?
  return working directory name. ex:/clients/users/rabahyo/cs256
o What is the absolute pathname of your home directory?
  /clients/users/rabahyo/
o What is the difference between cp and mv?
   cp - copy files and mv - move files.
o What is the difference between cp and ln?
  cp - copy files, and ln ==> link - make links
o How do you rename a file? 
  mv source_name target_name
o What does rm do?
  rm, unlink - remove directory entries.
o How can you remove a group of files with the system asking you, for each
  file, whether to remove it or not?
  rm -i file_name
o How can you remove a directory?
  rm -d file_name
o What happens if you try to remove a directory that has files in it?
  It tells you that directory is not empty. Does not delete until you delete files first.
o How can you remove a directory along with all of the files in it, all of
  the directories in it, all of the files in those directories, etc.?
  rm -R
o How do you create a directory?
  With command    mkdir
o How do you rename one?
  mv name_of_directory new_name
o What does ls -l do?
  -l(The lowercase letter ``ell.'')  List in long format. If the output is to a       
  terminal, a total sum for all the file sizes is output on a line before the   
  long listing.
o What does the the stuff in the first column of the ls -l listing
  mean? 
  tells you if people have access to read, write ...etc
o Who can read the files in your home directory?  Who can write to them?

o What does chmod do?
  chmod - change file modes
o How do you make it so others can not access the files in one of your
  directories?
  
o How can you tell what your disk quota is?  What is a disk quota?

o How can you find out who is logged into the machine you are on?
o How can you find out who you are logged in as?

o What are lpr and lpq?

o What does a2ps do?