vagrant_start.rb

#!/usr/bin/ruby
def startup_oracle_vm
  puts "Executing startup..."
  system('cd $ORACLE_HOME && vagrant up')
  exit!
end
startup_oracle_vm \
unless 
  %x(cd $ORACLE_HOME \
    && vagrant status | \
    grep default | \
    awk '{split($0,a," "); print a[2]}' \
    | xargs echo -n\
    ) == \
    "running"