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C & Unix Final Session

C & Unix Final Session. Review (… because I, too, can do PowerPoint …). 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

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C & Unix Final Session

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  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-action}<search pattern 1> {action 1}<search pattern 1> {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

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