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  Saint Louis MO - STL Unix Users Group


The Saint Louis Unix Users Group (SLUUG) is an IRS 501c(6) designated not-for-profit professional association dedicated to education and communication among computer users. SLUUG members include many Linux and UNIX professionals, Networking experts, System experts, hobbyists, students, plus many who are interested in Unix, Unix-like Operating Systems, Linux, BSD and other Free Open Source Software (FOSS) applications, products, projects and services.

ONLINE Sessions

  • NO PHYSICAL MEETINGS until further notice.
  • ONLINE session will use remote video service on 9 June 2021.
  • Connection Instructions are here and on our mailing lists.
  • BASE: SQLite 3 Database

    by Robert Hansen and Ed Howland

    A database is used to collect, store, manage, organize and analyze information. There are many database systems. This session will introduce simple database concepts. Then it will cover the free SQLite database system that is likely the single most popular and widely deployed choice.

    MAIN: git: peering behind the curtain

    by Robert Citek

    After Robert's "A Gentle Introduction To git" last February, this will be a deeper dive, getting into some of the "behind the scenes" stuff that git does: where it stores files, how it stores metadata about the files, and how the files are organized.

    In a previous talk, we went over the basics of using git as a version control system, covering the working folder, the staging area, and the repository. In this talk, we will go behind the scenes to see how git works its magic. We will cover the abstractions git uses, in particular, a key-value store, hashes, and graphs. We will then dig into how git implements and uses those abstractions to create a version control system using files and the file system. We will walk through examples of using the back-end commands to build a commit history just like git does. Our hope is that by peering behind the curtain we can begin to demystify the magic of git.

    SLUUG Sponsored meetings in the STL Metro Area

    Click here if you do not see mini-calendar below

    Monthly Meetings

    We open the room for the general meeting about 6:00 PM.

    Then we start at 6:30 PM with our BASE introductory level session (usually focused on personal computing); which may include either amazing graphical packages, blinking lights, command line wonders, demonstrations of useful applications, displays of newly discovered web sites, major resolution of long standing anomalies, quantum discoveries, smoke and mirrors, superb tutorials, or shifts in both time and space.

    Sometime after 7:00 PM we attempt a quick welcome, introductions, announcements, current events of interest, and a general CALL FOR HELP (Questions and Answers) segment.

    Sometime after 7:30 PM, we may take a short break before our MAIN topic (usually focused on enterprise computing),

    All of our meetings are free and open to the public. There is no individual membership fee.


  • NO PHYSICAL MEETINGS until further notice.
  • ONLINE session will use remote video service.
  • Instructions will be given here when available. They will first be sent to our Mailing Lists.
  • When!

    Wednesday June 9th, 2021

    from 6:30PM till 9:00PM Central Time

    We will open the remote session at about 6:00 PM

    Next scheduled meeting dates

    Past Meetings

    We have been meeting continuously since at least July 1992.

    Contact SLUUG if you have a presentation you would like to have considered for selection.

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