October 2018 – GEOS F436/636: Beyond the Mouse

BtM 2018, Week 10

More Unix/Linux shell, and some introduction to shell scripting!

Slides
The lab instructions are, again, on GitHub here: https://github.alaska.edu/Fall2018-BtM/Lab10

Reading:

Shell scripting tutorial (Bourne shell): https://www.shellscript.sh/
If you write more complex scripts, you may want to learn the Bash scripting, because it has some features (like arrays, and how variables are handled) that make certain operations less clunky than the simple Bourne shell. Good resources are https://ryanstutorials.net/bash-scripting-tutorial/bash-script.php and https://en.wikibooks.org/wiki/Bash_Shell_Scripting

(Note: Week 7 had a double dose of lecture, while week 8 had two labs. Back to normal in week 9.)

This week’s goals:

What is an operating system (OS)? What is Unix/a Unix-like OS and why would we want to use it?
*ix history and philosophy
Get your own virtual Linux computer!
Elementary Unix/Linux command line.

Documents for this week:

A small schedule change this week!

Tuesday will be class as usual.
Thursday we will have class, not lab, taught by me (Chris). We will proceed more deeply into plots with MATLAB: plotting rasters, images and, finally, maps, as well as outstanding small topics I haven’t mentioned. I’ll also reserve the last 30 min for question hour in which you can ask about any open issues you have with labs.
Next Tuesday we will have Lab 07 (taught by Andrew), which is about plotting. It will be a very guided step-by-step lab in which you apply the topics from this (last) Tuesday: creating a scientific plot, changing colors, fonts, other properties, to create a publication-ready result.
Next Thursday we will have Lab 08 (taught by Andrew), which will be a review lab to give you the opportunity to practice MATLAB coding going back to the very first steps (variables, operators, if-statements, loops).
I’ll be back the week after.

The slides are here (one document for both parts).

Also a brand new repository for this week: https://github.alaska.edu/Fall2018-BtM/Class_Lab07

Hi students! Week 6 takes us back to MATLAB coding. The big topic is: How to get data into MATLAB and write it back out.

The basic steps in many scientific data processing task are:

The material for this week is here”

Download the expanded slides.
From now on, labs will use git/GitHub: the repository is here. . (The code files are in the “examples” folder.)
Optional reading:
- Allaway, ch 9;
- The blog post “An alarming number of scientific papers contain Excel errors” by Christopher Ingraham in the Washington Post.