C

1
C Unix Final Session

• Review
• ( because I, too,
• can do PowerPoint )

2
Intro to Linux

• Kernel (Linus Thorwal) GNU Utilities Linux
• Un-certified Unix variation
• Many distros with various highlights. E.g.
• Kernel GNU Utils X-Server Gnome
• Kernel GNU Utils X-Server KDE
• Closely related to C programming language
• Text-file based configuration
• TCP/IP stack build-in from early on

3
Technical Details

• RAID
• Partitions
• DHCP
• Permissions and ownership

4
Shell Scripting

• Bourne-again shell bash
• Variables
• Loops
• Conditionals
• Pipes
• Redirection
• Job control

5
Special Utilities

• pico
• more
• grep
• sort
• uniq
• tar
• last, uptime, top, who (w)
• tail, head
• gzip, gunzip

6
Installing a tar-ball

• download file.tar.gz
• unzip untar
• ./configure
• make
• make install
• configure program options
• Our choice httpd

7
Web Server Configuration

• httpd process owner
• document root
• index files and permissions
• access rights
• alias redirect
• password protected web page
• CGI scripts
• Script (grep) driven phone-book db with search
• Httpd access log file

8
C Programming

• Simple C program
• Compile and link C program
• CGI script in C
• Makefile
• Makefile targets, dependencies, and commands
• Makefile dummy targets
• C program with complex numbers

9
Encryption

• SSH
• Public/private key encryption
• GPG
• Cluster computing

10
Other Programming Languages

• Awk BEGIN init-actionltsearch pattern 1gt
  action 1ltsearch pattern 1gt action 1 END
  final-action
• Count how many times a user logged in
• Perl Swiss-Army Knife of Scripting
  Languagesscalarsarrays (lists index)hashes
• Program to count frequencies of words in a text
  file

11
VM Virtual Machine

• VMware-player-2.0.3-80004.exe
• Free VM player can execute VMs packaged for it
• Ubuntu_710_VMware_EN-2.rar
• User-friendly Linux distro with Gnome Desktop
• 7z457.exe
• FOSS compression/uncompress program
• Setup and configure to your taste
• See configuration document