Python Booleans

Python Strings

Python Operators

Python Data Types

The basics of working with Python

Python 2 vs Python 3

Running Python programs

How to run programs written in Python

Installing Python 3 on macOS

A how-to guide on installing the latest version of Python on your Mac

Introduction to Python

Introduction to the Python Programming Language Series

JavaScript Algorithms: Bubble Sort

JavaScript Algorithms: Merge Sort

JavaScript Algorithms: Quicksort

JavaScript Algorithms: Selection Sort

JavaScript Algorithms: Binary Search

JavaScript Algorithms: Linear Search

Algorithm Complexity and Big O Notation

JavaScript, how to replace an item of an array

How to use Netcat

JavaScript, how to find duplicates in an array

How to find and remove duplicates in a JavaScript array

JavaScript, how to extend a class

How to extend a class in JavaScript

JavaScript, how to filter an array

How to filter an array in JavaScript

JavaScript, how to find a character in a string

How do you find a character in a string, using JavaScript?

JavaScript, how to exit a function

How to quickly end a JavaScript function, in the middle of it

JavaScript, how to export multiple functions

How to export multiple functions from a JavaScript file

JavaScript, how to export a function

How to export a function from a JavaScript file

JavaScript Data Structures: Linked lists

JavaScript Data Structures: Dictionaries

JavaScript Data Structures: Set

JavaScript Data Structures: Queue

Linux, no space left on device

A short guide to nano

A short guide to emacs

A short guide to vim

A short guide to the ed editor

The Stack JavaScript Data Structure

The Array JavaScript Data Structure

How to remove all items from a MongoDB collection

How to insert multiple items at once in a MongoDB collection

How to move around blocks of code with React and Tailwind

Using useState with an object: how to update

How to destructure an object to existing variables in JavaScript

Can I use React hooks inside a conditional?

How to fix the "cannot update a component while rendering a different component" error in React

A quick guide to how I solved a confusing React error

How to fix the: "EMFILE: too many open files, watch" error in macOS

A quick guide to how I solved a confusing React Native error

How to fix the `iphoneos cannot be located` error in macOS

A quick guide to how I solved a confusing React Native error

How to solve the "unrecognized command run-ios" error with React Native

A quick guide to how I solved a confusing React Native error

Linux commands: env

A quick guide to the `env` command, used to run commands and interact with environment variables

Linux commands: printenv

A quick guide to the `printenv` command, used to print the values of environment variables

Linux commands: basename

A quick guide to the `basename` command, used to return the filename portion of a path

Linux commands: dirname

A quick guide to the `dirname` command, used to get the directory portion of a path

Linux commands: crontab

A quick guide to the `crontab` command, used to schedule cron jobs

Linux commands: export

A quick guide to the `export` command, used to export variables to child processes

Linux commands: tar

A quick guide to the `tar` command, used to archive files

Linux commands: traceroute

A quick guide to the `traceroute` command, used to list all the nodes traversed to reach a host

Linux commands: ping

A quick guide to the `ping` command, used to ping a network host

Linux commands: gunzip

A quick guide to the `gunzip` command, used to unzip gzipped files

Linux commands: gzip

A quick guide to the `gzip` command, used to compress a file

Linux commands: xargs

A quick guide to the `xargs` command, used to pass output of a command and use it as argument to another command

Linux commands: df

A quick guide to the `df` command, used to get disk usage information

Linux commands: nohup

A quick guide to the `nohup` command, used to run a command that does not end when the terminal is killed

Linux commands: diff

A quick guide to the `diff` command, used to compare files and directories

Linux commands: uniq

A quick guide to the `uniq` command, used to work with duplicate records/lines in text

Linux commands: sort

A quick guide to the `sort` command, used to sort records/lines of text

Linux commands: uname

A quick guide to the `uname` command, used to print details about the current machine and the operating system running on it

Linux commands: man

A quick guide to the `man` command, used to learn how to use command line commands

Linux commands: grep

A quick guide to the `grep` command, used to match patterns in text

Linux commands: umask

A quick guide to the `umask` command, used to set the default permissions of files

Linux commands: du

A quick guide to the `du` command, used to calculate the space usage of files and directories

Linux commands: history

A quick guide to the `history` command, used to view the command line history

Linux commands: wc

A quick guide to the `wc` command, used to count lines, words or bytes

Linux commands: open

A quick guide to the `open` command, used to open files, directories and applications

Linux commands: passwd

A quick guide to the `passwd` command, used to change a user's password

Linux commands: chmod

A quick guide to the `chmod` command, used to change the file mode

Linux commands: chown

A quick guide to the `chown` command, used to change the owner of a file

Linux commands: sudo

A quick guide to the `sudo` command, used to run a command as another user

Linux commands: su

A quick guide to the `su` command, used to switch the shell to another user

Linux commands: clear

A quick guide to the `clear` command, used to clear the screen of the terminal.

Linux commands: who

A quick guide to the `who` command, used to show the users logged to the system

Linux commands: whoami

A quick guide to the `whoami` command, used to print the current user name

Linux commands: which

A quick guide to the `which` command, used to show where the command is stored

Linux commands: type

A quick guide to the `type` command, used to determine the _kind_ of a command

Linux commands: fg

A quick guide to the `fg` command, used to put a job that's running in the background to the foreground

Linux commands: bg

A quick guide to the `bg` command, used to resume a job that's been suspended

Linux commands: jobs

A quick guide to the `jobs` command, used to list the status of the jobs we started

Linux commands: alias

A quick guide to the `alias` command, used to create a shortcut to another command

Linux commands: killall

A quick guide to the `killall` command, used to send signals to multiple processes currently running

Linux commands: kill

A quick guide to the `kill` command, used to send a signal to a process currently running

Linux commands: top

A quick guide to the `top` command, used to list the processes running in real time

Linux commands: echo

A quick guide to the `echo` command, used to print the argument passed to it

Linux commands: ps

A quick guide to the `ps` command, used to list the processes currently running in the system

Linux commands: ln

A quick guide to the `ln` command, used to create links in the filesystem

Linux commands: find

A quick guide to the find command, used to find files and folders on the filesystem

Linux commands: cat

A quick guide to the cat command, used to add content to a file

Linux commands: touch

A quick guide to the touch command, used to create an empty file

Linux commands: tail

A quick guide to the tail command, used to watch files for changes

Linux commands: less

A quick guide to the less command, used to show the content of a file

Linux commands: cp

A quick guide to the cp command, used to move files and folders

Linux commands: mv

A quick guide to the mv command, used to move files and folders

Linux commands: ls

A quick guide to the ls command, used to list the files in a folder

Linux commands: rmdir

A quick guide to the rmdir command, used to remove a folder