hamidreza-s

-module(file_mode_calc).

-export([run/0]).

-include_lib("kernel/include/file.hrl").

%% source: https://jameshfisher.github.io/2017/02/24/what-is-mode_t.html

-define(S_IRWXU, 8#0000700).
-define(S_IRUSR, 8#0000400).

hamidreza-s

-module(calc).
-export([prime_numbers/1]).

% Source: https://wbear.wordpress.com/2011/12/08/prime-numbers-with-erlang/
% Sieve of Eratosthenes algorithm for finding all prime numbers up to N.
% http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes

% Generate list of prime numbers up to N.
prime_numbers(N) when is_number(N) ->
prime_numbers(N, generate(N)).

hamidreza-s

## node 1
$ erl
1> erl_epmd:start().
2> erl_node:register_node(ejabberd, 23456).
## Emergency 'epmd' Recovery

## node 2
$ erl -sname repair
1> net_adm:ping(ejabberd@hostname).

hamidreza-s

/*****************************************************************/
/* Super Simple Unix/Linux "Display" commands.                   */
/*                                                               */
/* file   : unixcommands.txt                                     */
/* Date   : 02/02/2013                                           */
/* Version: 0.3                                                  */
/* By     : Albert van der Sel                                   */
/* Remarks: The Commands will only display information and not   */
/*          change anything at all.                              */
/*****************************************************************/

hamidreza-s

* Erlang Source Code
   * Scanning
   * Parsing
   * Parse Trasform
   * Linter
* Erlang AST ('P')
* Erlang Expanded AST ('E')
* Core Erlang
* Core Erlang AST
* Kernel Erlang

hamidreza-s

%% part 1: utility module
%% ======================
-module(utility).
-export([count/2]).

%% part 2: count function
%% ======================
count(Dir, Word) ->
   Accumulator = 0,
   CounterPid = spawn(fun() -> counter(Accumulator) end),

hamidreza-s

-module(direct_msg_to_rabbit).

%% Define Record
-record('P_basic', {
	content_type, 
	content_encoding, 
	headers, 
	delivery_mode, priority, 
	correlation_id, 
	reply_to, 

hamidreza-s

-module(main).
-export([hi/0, bye/0, hey/1]).
-compile({parse_transform, main_pt}).

hi() -> io:format("Hi there!~n").
bye() -> io:format("Bye there!~n").
hey(foo) -> io:format("Hey foo!~n");
hey(bar) -> io:format("Hey bar!~n").

hamidreza-s

# in command mode

Ctrl+E (move screen up)
Ctrl+Y (move screen down)

H (move cursor to head of screen)
M (move cursor to middle of screen)
L (move cursor to end of screen)

gg (move cursor to head of file)

hamidreza-s

%% move cursor to beginning of the line
io:format("\e[H").

%% clear the console 
io:format("\e[J").

%% both
io:format("\e[H\e[J").