Web:
http://www.ececs.uc.edu/~achokhan/unix
Course Scheduling Information
Meets: Tues., Thurs. 7:30-9:30 in Braunstein 300
Important Information, Announcements and News
Note that a sample file with records for homework 2 has been given below (see
Homework section below). To test hw2
create a file records and copy records from
below into this file (can use cut and paste). Include this file called
records in your special subdirectory
20ECES620801.
If you are having trouble with your oz account. In particular if you
are registered for the course, but do
not have the special subdirectory 20ECES620801
set up for you
(it usually takes about a day for it to be set up when you create a new oz
account), you can get help my e-mailing Ellen Davis at
ozhelp.uc.edu
Here is the
Course Syllabus
All students need an account on OZ. The machine is part of
the Student Access Network and running under Digital UNIX. If you do not
have an account on OZ, you can apply for one via the Web at
http://OZ.UC.EDU/apply.html.
If you are registered for the course 20-ECES-620
a subdirectory with the name 20ECES620801 will be
set up automatically in your home directory.
If the subdirectory is not created automatically,
then you are either not registered, or you are using an account that is
not associated with your student ID.
All completed assignments have
to be placed into that subdirectory. I have access to the subdirectory
and thus
can test your assignments. I can not access any
other subdirectories of your account, and I will not test programs residing
on other machines.
The User's Guide for OZ can be found at
http://www.docs.uc.edu/docs/oz.
A quick reference guide to OZ can be found at
http://www.uc.edu/ucitdocs/ozqg.html.
Lecture notes
Supplementary notes
Sample Shell Scripts
User enters input - using metavariable $<
Look up phone number - using the here document
Time stamp a file - using the here document
Lists directory files
Clean directory
Conditional copy directory
Total bytes in directory hierarchy - recursive script
Script for grading hw1
Sum of numbers
Clean directory - Bourne Shell Script
Sample C Programs
C program for echo command
C program for filter to convert to lowercase
Double space
Convert to lowercase - file updating
Invoke vi editor - system command with C program
Simulating a shell
Convert ls -l to uppercase - using pipelining in C program
Accessing file status
Test whether file given in first argument is more recent than file in second
argument
Rewrite "convert to lowercase" filter using
systems calls read and write
Version of low.c where input file is first arguments, instead of
standard input
Version of low.c where input and output files are taken from first two arguments, instead of
standard input and standard output
Testing for read permission using access system call
Testing for read, write and execute permissions using access system call
Searching directory for given file using system calls
Displays current working directory using system call
getwd
Rewrite of conditional copy using system calls
Example C program using a fork
Child computes partial sums and parent compute partial products using fork
C program to implement a simple shell using
fork and execv
Application of popen that counts total number
of words in a list of files
Example C program where a parent process
writes a message (i.e., "Hello Dolly") to a child process through a pipe
Homework