Unit 0 - Orientation

0.0. Welcome to the Class

• Intro to course - classroom, my schedule, website
• Computer Programming vs Computer Science: This course favors CS
• Expectations:
  • You have a computer that works and is charged.
  • You know how to look at error messages and diagnose typos in your programs: typos are not bugs.
  • You have a notebook for this class that you write in.
• The material in this class will get challenging, but a combination of technical ability, creativity, good attitude, and perseverance can unlock almost anything!

0.1. Activities

• Install Miniconda
• Install VS Code
• Your computer's filesystem is well-organized?
• Facility with Terminal commands (below)
• hello_world_personal.py
• Worksheets
  1. Encapsulation and Binary
  2. Organizing Files
  3. Files and Folders
  4. Navigating with the Command Line
• Student Info form
• Reading in our online textbook, Problem Solving with Algorithms and Data Structures using Python, by Bradley N. Miller and David L. Ranum

0.2. Interacting with a POSIX terminal

• Common terminal addresses
  • ~ → shortcut to the user's home directory
  • . → the current directory
  • .. → the next higher ("parent") directory
  • / → the root directory, which contains all other files and directories
• Common shell commands:
  • pwd
  • ls path/to/directory
  • cd directory
  • mkdir directoryname
  • cp source destination
  • mv source destination
  • rm path/to/filename
  • cat path/to/filename
  • less (f, b, /, n, gg, G, q)
  • ssh userid@servername
  • scp source destination
  • man command
  • nano filename

0.3. Interacting with the course server

The two most common things people do with the course server in here are:

• Log in to the server using ssh
  Note the lowercase p in this command.

  $ ssh -p 1030 username@crashwhite.polytechnic.org
  username@crashwhite.polytechnic.org's password:
  Welcome to Ubuntu 18.04.3 LTS (GNU/Linux 4.15.0-74-generic x86_64)
  
  
  23 packages can be updated.
  0 updates are security updates.
  
  Last login: Fri Jan 17 10:20:29 2020 from 10.30.238.111
   ________________________________________
  / Mr. White, you are an evil, evil, man. \
  \ - M. Greenwell                         /
   ----------------------------------------
          \   ^__^
           \  (oo)\_______
              (__)\       )\/\
                  ||----w |
                  ||     ||
  username@crashwhite:~$

  While on the server you can use the shell to run programs, work on programs, etc.

  When done, press ctrl-d to exit the server:

  username@crashwhite:~$ logout
  Connection to crashwhite.polytechnic.org closed.

• Upload work from their own computer onto the server
  Note the uppercase P in this command.

  $ scp -P 1030 sourcefile username@crashwhite.polytechnic.org:~/forInstructor/