Hello World
Unix
- Operating System - Windows/Mac
- Unix –> Linux
- Command Line –> different way to navigate without graphics (no double-clicking on icons, etc.)
Terminal
text1@text2 ~ % ##
-
text1= username -
text2= computer -
~= home directory -
%= end
Commands
-
cd [dir]= change directory (beneath or in folder) -
cd ..= change directory (go to parent directory) -
cd [dive deep directory]= using forward slash -
cd [tab button]= view preview of directories -
mkdir [new name]= make directory (folder) -
ls= list contents current directory -
ls -a= list all hidden files in a directory -
ls -l= list files with more information like access time and size -
clear= clear screen -
whoami= shows your username
Vim
- vim/nano/emacs –> Text Editor
vim hello.cpp- type
i→ insert mode - write code
-
escapeto exit insert mode -
:w- write/save -
:q- quit -
:wq- save then quit