use environment variables to decide where to store temporary files : ENV « Development « Ruby

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Ruby » Development » ENV 
use environment variables to decide where to store temporary files


# , or to find out what sort of features your operating system offers, in real time

tmp_dir = '/tmp'
if ENV['OS'] =~ /Windows_NT/
  puts "This program is running under Windows NT/2000/XP!"
  tmp_dir = ENV['TMP']
elsif ENV['PATH'] =~ /\/usr/
  puts "This program has access to a UNIX-style file system!"
else
  puts "I cannot figure out what environment I'm running in!"
  exit
end

 
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