Day Program September 2020
Oracle Tutoring will offer a day program to commence after Sept 1: Middle to high school levels Emphasis on math and academic subjects Help with online courses
JavaScript regex: boundaries
Self-tutoring about regular expressions with JavaScript: the tutor mentions the idea of the boundary condition. In JavaScript regex, a boundary condition can mean a whitespace or punctuation before or after a word. That’s my understanding, anyway. Source: developer.mozilla.org
[Li|U]nix: “other” characters in file names
Self-tutoring about Unix: the tutor mentions accessing a file name that has non-word characters. Sometimes you’ll look in a directory and you might see a file name such as this(file).txt Yet, if you try to refer to that file in …
Can “tack” mean “-“?
Self-tutoring about comp sci terminology: the tutor looks into a point of usage. Apparently one spoken way to indicate “-” (dash, hyphen, minus, or whatever you call it) is “tack.” I encountered this today: apparently it’s common in some circles. …
Retrospect: Judy
Self-tutoring about people and events from the past: the tutor mentions a good memory. When I arrived at a new elementary school in April, grade 4, I think Judy might’ve been in my class. Yet, it had more than 25 …
Word: underline color
Self-tutoring about using MS Word: the tutor mentions underline color. I asked someone the other day if they realize that, in MS Word, you can underline text in a different color from the text itself. While they’ve used Word much …
[Li|U]nix: awk, part 0
Self-tutoring about Linux: the tutor mentions awk. awk is a utility for getting values from tabulated data. It works line by line. For instance, awk ‘{print $2}’ input.txt will print the second field in each record of input.txt. Source: geeksforgeeks.org
[Li|U]nix: how to get your uid
Self-tutoring about using Linux: the tutor mentions a way to find your own uid. Set a task going such as sleep 360 & & in the command above puts it to the background so you can still run the terminal. …
(Li|U)nix: the dot command
Self-tutoring about (Li|U)nix: the tutor mentions another neat command. The “dot” is just a period. A simple example of the dot command is . file0 If file0 contains Unix commands, they will be executed. Interestingly, with the dot command, file0 …
Linux: tr command
Self-tutoring about Linux: the tutor mentions its neat tr command. tr target replacement is one form of tr, with input being piped to it or redirected to it. For instance, tr “8” “9” < infile.txt will display the file infile.txt …
Retrospect: can’t
Self-tutoring about people and events of the past: the tutor reflects…. At my school grades 4-7, the gym was definitely central. Sports events were popular, and of course every kid had to take PE class, athletic or not. I wasn’t …