sudo fallocate -l 3G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon --show
sudo cp /etc/fstab /etc/fstab.bak;
echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab
sudo apt-get update
sudo apt-get install libgdbm-dev libncurses5-dev automake libtool bison libffi-dev
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2B...
If you have a ton of uploaded files you need to have a visitor download, you will want to compress said information to decrease size and combine many files into one single zip. We will do this using the rubyzip gem. Keep in mind that if the files are audio or video, compressing them may not have any effect on the size.
We will first add the gem to our project.
= link_to 'Download Zip', route_path(format: ...
Sometimes when you have a project, you'll want to run really long scripts and have them daemonized and running in the background. This allows your server to scale and not hang a http request and cause long latency requests on your box.
Let's install a few gems that will help us do exactly this. I chose to use delay jobs gem over sidekiq, because I felt it would be better for my usage of it. Keep in mind that active job was added in Rails 4.2, so if you are running a versi...
A great place to start concatenating git commands is in your shell's rc file. I currently use Oh-My-Zsh, in which case I'd vim into it and add aliases like so.
You can add in extra aliases to fit your needs, but below is just a list of the main git commands one would use most of the time.
# Insert these main aliases
alias gaa = "git add ."
alias gstat = "git status"
alias gdiff = "git diff"
alias gcm = "git commit -m"...
Let's install Crystal first so we have the language on our machine. Keep in mind that you can also omit
--with-llvm on the installation if you do not plan to do any contributing to the Crystal Lang.
brew install crystal-lang --with-llvm
If you run in to any errors, it could be because you don't have xcode installed and using its command line tools.
xcode-select --switch /Librar...
If you need to create a private and public ssh key, run the following command.
ssh-keygen -t rsa -b 4096 -C "email@example.com"
By default, AWS will give you a .pem key when you create your server. The key is automatically added into the authorized keys upon creation. If you like this way, you can keep it, but you can specify it even more if you were going to give your team access too, and wanted an easy way to remove them afterwards ...
To start, you'll need to have a developer account, click the link to download the appropriate tool to manage your codec libraries Mac Developer Tools. Search for “Additional Tools for Xcode”, the latest version is 9.0.
Extract the dmg and search for “Bluetooth Explorer.app”. Move it into your Application Folder within your Mac.
Run the Bluetooth Explorer and then go to Tools -> Aud...
rails g migration AddOmniauthToUsers provide...
Just a list of things I've done with CSS that I'd like to keep note of for future styling. Most of these will be in SASS format.
Been running into this a lot, helped me center images in middle of the screen even when resizing it. Percentages may need to be adjusted by case scenario along with media queries.
/* OR */
Let's start off by installing Docker on our Mac. Visit the docker site to download the Mac application.
Then we will need to create a directory in which to start building our image.
cd ~ && mkdir first-docker-image
After creating your directory, let's create an image in which we can create our own container. We will first start off by cre...