Study Notes

Front 1

main()

Back 1

Most important part of a C program

Determines the beginning of the program's execution

Always followed by braces {...}

Front 2

functions

Distinguished from a command by the () that follow the function name.

Back 2

For example

main ()

printf()

strlen()

Front 3

Terminal

Alias

Back 3

Short cut

ie/

alias test="echo 'test'" will return the word test

alias the new word or symbol="the things you want it to do or say"

Front 4

mk dir Make a new directory

ls List

mv Move

cp Copy

Front 5

Commands

Back 5

Have 3 elements

1. the command itself which calls a specific tool

2. an option which modifies the command's output

3. an argument which calls the resource on which the command will operate

Front 6

esc + y = list of commands, press space bar for more

Back 6

tba

Front 7

Arrays

int arr[10]

Here int is the data type, arr is the name of the array, and 10 is the size of the array. It means that the array can only contain 10 elements of int type.

Back 7

Arrays are a list of variables of the same data type.

Two dimensional arrays are declared like this:

int a[3][4]

Front 8

Initializing an array

Back 8

Can be done at compile time or at runtime.