Download and install Fira fonts in Linux or Mac OS X

getFirafonts.sh

#!/bin/bash

## cf from http://programster.blogspot.com/2014/05/ubuntu-14-desktop-install-fira-sans-and.html

cd /tmp

# install unzip just in case the user doesn't already have it.
if [[ `uname` = Linux ]]; then
    sudo apt-get install unzip -y
    wget "http://www.carrois.com/downloads/fira_4_1/FiraFonts4106.zip"
    wget "http://www.carrois.com/downloads/fira_mono_3_2/FiraMonoFonts3206.zip"
    unzip FiraSans4106.zip
    unzip FiraMono3206.zip
    sudo mkdir -p /usr/share/fonts/truetype/FiraSans
    sudo mkdir -p /usr/share/fonts/opentype/FiraSans
    sudo cp Fira*/WEB/*.ttf /usr/share/fonts/truetype/FiraSans/
    sudo cp Fira*/OTF/Fira* /usr/share/fonts/opentype/FiraSans/
    sudo fc-cache -fv
else
    wget https://github.com/mozilla/Fira/archive/4.202.zip
    unzip 4.202.zip
    font_dir="$HOME/Library/Fonts"
    mkdir -p $font_dir
    cp Fira-4.202/otf/* $font_dir/
fi

How do I install font-fira-code on Linux currently?

When I try the currently provided commands:

brew tap homebrew/cask-fonts

brew install --cask \
  font-fira-code \
  font-fira-mono \
  font-fira-mono-for-powerline \
  font-fira-sans

I receive the following error:

Error: Invalid `--cask` usage: Casks do not work on Linux

Any workaround on Linux?

On macOS, it worked like a charm for me.

for linux :)

mkdir -p ~/.fonts/
wget https://github.com/tonsky/FiraCode/raw/master/FiraCode-Regular.otf -O ~/.fonts/FiraCode-Regular.otf
fc-cache -v

more info here https://github.com/tonsky/FiraCode/wiki/Linux-instructions#installing-with-a-package-manager

Using brew cask, this would be:

brew tap caskroom/fonts
brew cask install \
  font-fira-code \
  font-fira-mono \
  font-fira-mono-for-powerline \
  font-fira-sans

this does not seem to work anymore under macos... for me worked brew install --cask font-fira-sans as written under https://formulae.brew.sh/cask/font-fira-sans#default