Auto format and correcting Ruby code using rubocop or rufo

rubocop.sh

# Install entr and silversearcher-ag
sudo aptitude install entr silversearcher-ag

# Install rubocop and add "gem 'rubocop'" to Gemfile
gem install rubocop

# Add rubocop to Gemfile
echo "gem 'rubocop', require: false" >> Gemfile

# Watch for changes
ag --ruby -l | entr -c bundle exec rubocop -a

rufo.sh

# Install entr and silversearcher-ag
sudo aptitude install entr silversearcher-ag

# Install rufo
gem install rufo

# Add rufo to Gemfile
echo "gem 'rufo'" >> Gemfile

# Waiting for changes in all files
ag -l | entr bundle exec rufo .

# or just ruby files
ag --ruby -l | entr -c bundle exec rufo lib spec