paper vs. digital

https://twitter.com/ProfessMoravec/status/953992067189002240

how computers work

• series of commands
• binary
• layers of abstraction
• humans!

command line

• vs. GUI
• container = shell
• tree structure

syntax

$ command parameters -flag

• $ says start after me
• command = what to do
• parameters = how to do it flag = use this option

command line crash course

https://learnpythonthehardway.org/book/appendixa.html

print working directory

$ pwd

list

$ ls

change directory

$ cd

go to desktop

$ cd ~/Desktop

make directory

$ mkdir bananas

change into bananas

$ cd bananas

return to desktop

$ cd ..

next:

1. return to bananas
2. make a new directory
3. change into that directory

touch

$ touch file.txt

open

$ open file.txt

next:

1. type something
2. save.
3. cat file.txt

copy

$ cp file.txt newfile.txt

delete

$ rm file.txt

trace route

$ traceroute

vim!

$ vim file.txt

Use Google to figure out how to edit the file, save, then exit.

Lab 3

1. Type history.
2. Copy and paste contents to new file.
3. Save as lab3.txt in Box.