1. The Unix Environment for Programming (Comp433)
12:00-12:50 Sun/Tues
Room Number: 4-19
Solane Duque

2. Introduction
Developed as a Research Project at the AT&T Bell Labs in 1969
Characteristics of Unix
Portable
Multi-user
Multi-tasking

3. About the Shell
You interact with unix through a special program called the shell
The shell prompt will hand over the program to the operating system after you typed in.

4. About UNIX Commands Commands come in two parts: Command Arguments
Example:
ls –l myfile

5. UNIX Flavors
Bourne Shell (sh)
C shell (sch)
Others
Ksh
Bash
tsch

6. Login and Logout Login to start the session using your
Username
Password
Logout to end your session

7. Password Dont’s
Don’t use your login name, real name, nickname, dog’s name, or any name;
Don’t use a word that appears in dictionary;
Don’t use easily guessed combinations of characters;
Don’t write your password down.

8. Password Do’s Make your password at least 6 characters;
Include at least one number or punctuation, and at least 2 letters;
Use both upper and lower case letters;
Choose a password you can remember without writing it down.

9. Password Example
Four of five dentists recommend Trident
4oo5drT

10. Thank You
Any questions?