Assignment #1

The following exercises are to be completed in an electronic file and then
mailed to lingras using pine (do not attach). 
 
Use the 'script' command to record your terminal session for each question
and then edit the resulting file (using vi, ed or pico) to 'annotate' the
file showing which part is for question 1, etc. (use man script for more
information on how to use script) Note: The annotation can also be done by
using comment lines

      $# This is a comment line
 
You should also show the results of redirecting output into a file by
using 'cat filename' to display the contents. 
 
Caution:
Remember to rename the typescript file created by one session of using
script before you start another script session. Another possibility is to
specify the name of the output file as argument to the typescript command.
 
1)   Create a header file to be used for assignments by combining
     the ECHO command and redirection.
 
      ECHO          Assignment \#2 for COSC 2904  > assignhdr
      ECHO          Submitted by  Your Name     >> assignhdr
      ECHO          Date yy/mm/dd               >> assignhdr
 
     
     Use cp to make a copy of this called assign2 and do a ls 
     to show you have both files on your account.
 
     The script sessions for all questions are to be included in 
     the assign2 file.        
 
2) Exercises from Kernighan & Pike
 
     1-4 page 29
     1-5 page 31
     1-6 page 31
 
3)   Set the PATH variable to an empty string and attempt a few commands
     including echo, type, grep, and ls. Explain why each of the
     commands worked or failed. Restore PATH variable to the
     original value.
 
4)   Create a shell variable called USERNAME containing your full
     name including spaces and place it in the environment.
     Redirect the output of the set command to the assignment
     file to show the result and also ECHO the variable with
     redirection to the assignment file. 
 
 
Reminder: Be sure you have properly annotated the file to show
which question and what commands were used to generate any
results sent to the file using redirection.