Computers and Computer Networks

• Computer Science documentation, etc.


• Computer Science Research and Services at the Lab


• Super Computing


• Computer Graphics


• Computer & Internet information via yahoo.com, categorized by subject


• Perl


• UNIX documentation


• Shareware sites


• MBONE and Videoconferencing

Computer Networks and related documentation

Computer Documentation

• World Wide Web


• UNIX Documentation


• TeX, LaTeX FAQ, documents, archives, etc.


• MacInTouch -- current Macintosh information, from vendor & others


• Shareware sites


• The Free On-line Dictionary of Computing


• PDS: The Performance Database Server of Computer Benchmark

Newsgroups, USEnet, and Mailing Lists

• Usenet (Internet News Groups)


• Mailing list software & information

Networks: Documentation

• InterNIC Information Services Home Page


• Country Codes (ISO-3166)Previously at http://www.lib.uwaterloo.ca/country_codes.html and ftp://info.ripe.net/iso3166-codes


• RIPE Network Coordination Centre (support service to Internet Service Providers in Europe)


• WinSock-L Home Page

Computer Science Research and Services at the Lab

• Computing Sciences

Computer Science information -- offsite

• Computer Science Bibliographies


• Association for Computing Machinery's (ACM) World Wide Web services.
  The information available through ACM's Internet services includes details on: conferences, calls for papers, ACM periodicals and books, ACM special interest groups, members services, chapters, technical outreach programs, and the ACM International Collegiate Programming Contest.


• IEEE Computer Society

Super Computing

• NERSC: National Energy Research Scientific Computing Center


• National HPCC Software Exchange (NHSE) for the High Performance Computing and Communications community.

Perl (Practical Extraction and Report Language) resources

• Perl home page


• perldoc.com Perl documentation (up-to-date repository of online Perl and CPAN module documentation)


• Perl resources (CPAN)


• UNIX Review Perl column


• Perl Idioms

Some perl tips & tricks

• checking syntax of a file:
  perl -wc file.pl
  -c: checks syntax of script.
  -w: prints warnings.



• 'die' often troublesome in CGI scripts
  

  [Netscape server] would not run a script this morning. Author ran the script through "perl -wc" as recommended. It came back telling her that there was an error at line 417. When we "vi"ed the file and went to line 417 we discovered that line 417 was a "die" statement at the bottom of the main routine. As you know "die" produces an abnormal termination return code which the netscape server tests. So the Netscape server sends an error message to the browser. [author] deleted the "die" statement and [then] It worked fine. Bottom line - "die" is for abnormal termination.



• Replacing a string in many files:

  perl -pi.bak -e 's/OLDSTRING/NEWSTRING/g' FILELIST
  



• Reversing lines of a file:

  From "Programming Perl", by Wall and Schwartz, page 227:
  perl -e 'print reverse <>' FILES
  will take one or more concatenated files (or stdin) and print all of the lines in reverse order from beginning to end. FILES must file in memory.

  For example,
  perl -e 'print reverse <>' /etc/motd

UNIX Documentation

• UNIX Frequently Asked Questions (FAQ)


• Yahoo UNIX information

Computer Graphics

Berkeley Lab Computer Graphics

• Imaging and Distributed Computing Group


• Visualization Group home page

Other Computer Graphics sites

• mpeg_play (animation player), Geomview, Evolver, Snappea, etc.


• Computer Vision Home Page

MBONE (IP Multicast Backbone on the Internet)

• Berkeley Lab Video Services (part of our Technical and Electronic Information Department (TEID)


• Berkeley Lab Video Broadcast & Teleconferencing services


• LBLnet & MBone


• Berkeley Lab Network Research Group


• MBONE -- Communications for the Next Millennium (July 28, 1995)


• Building the Internet's MBONE: LBL's Van Jacobson a Principal Architect (December 9, 1994)


• Videoconferencing Debuts on the Internet(Feb. 28, 1995)


• Building the Information Superhighway


• The IP Multicast Initiative (IPMI)