Meetings:2004-04

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Advanced shell scripting: network sockets and other techniques.

Presented by Chris F.A. Johnson.

Date
April 13, 2004
Time
7:30pm
Location
Galbraith Building, U of T
Directions
http://oracle.osm.utoronto.ca/map/
Room
GB244
Speaker
Chris F.A. Johnson
Topic
Advanced shell scripting: network sockets and other techniques
Summary
When the SWEN virus hit last September, I was receiving more than 2,000 150K e-mails a day. Downloading them from the POP3 server was slowing my computer to a crawl.

The solution is a shell script which connects to the server, downloads the headers and the first few lines of each message, deletes those I didn't want, and downloads the rest.

The presentation will look at:

  • writing to and reading from network sockets
  • notification when mail is on the server
  • viewing headers
  • deleting messages
  • retrieving messages

and will cover many tips and tricks for shell programming.

Speaker Bio
Chris Johnson learned shell scripting in 1990, after becoming Unix Systems Administrator at a local charity. When not writing shell scripts for fun or profit, Chris makes his living writing cryptic crossword puzzles and teaching chess
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