abranhe

#301 Redirects for .htaccess

#Redirect a single page:
Redirect 301 /pagename.php http://www.domain.com/pagename.html

#Redirect an entire site:
Redirect 301 / http://www.domain.com/

#Redirect an entire site to a sub folder
Redirect 301 / http://www.domain.com/subfolder/

abranhe

CREATE TABLE books (
  id serial,
  title varchar(100) NOT NULL,
  author varchar(100) NOT NULL,
  published_date timestamp NOT NULL,
  isbn char(12),
  PRIMARY KEY (id),
  UNIQUE (isbn)
);

abranhe

Total props to Brian Cray: http://briancray.com/posts/estimated-reading-time-web-design/

abranhe

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

abranhe

Go to Play with docker and login. Once logged in:

Download pgAdmin

docker pull dpage/pgadmin4

Start the pgAdmin server

abranhe

// F# is Microsofts functional language
// It provides a way to develop predictable
// code that is often way shorter
// Functional languages apply functions
// to data rather then focus on state changes
// like most OO languages

// Functional languages are great when you
// must execute multiple processes at once.
// Because all variables are immutable it

abranhe

# You can add comments like this
all: gpa

gpa: lab1.o
  gcc lab1.o -o gpa

lab1.o: lab1.c
  gcc -c lab1.c -o lab1.o

clean:

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# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.

abranhe

Get domain name

document.domain

or

window.location.hostname.match(/\w*\.\w*$/gi)[0]

abranhe

Convert Java Executable to Linux Executable

Introduction

Java program is universal and applicable to most operating systems, but if someone intends to create a native executable binary file for certain operation system, is that possible?

The answer is yes. Here is the instruction to create an executable program for Linux with .run as its extension name.

Create a text file use your favorite text editor (In this case it is gedit) and type these code below: