osx make memory disk

gistfile1.sh

#!/usr/bin/env ruby -w
# OSX 创建内存盘

puts '================================================================'
cmd="hdiutil attach -nomount ram://1048576"
puts ">>> #{cmd}"
new_disk=`#{cmd}`
new_disk.strip!
puts new_disk

puts '================================================================'
cmd="newfs_hfs -v RamDisk#{new_disk[-1]}  #{new_disk}"
puts ">>> #{cmd}"
puts `#{cmd}`

tmp_dir=''
['','2','3','4','5','6'].each do |i|
  tmp_dir="/tmp/ttt#{i}"
  if !File.directory?(tmp_dir) && !File.file?(tmp_dir)
    Dir.mkdir(tmp_dir) 
    break
  end
end
puts '================================================================'
cmd="ls -ld #{new_disk}  #{tmp_dir}"
puts ">>> #{cmd}"
puts `#{cmd}`

puts '================================================================'
cmd="mount -t hfs #{new_disk}  #{tmp_dir}"
puts ">>> #{cmd}"
puts `#{cmd}`

puts "\n\n\n DESTROY RAMDISK COMMAND  !!!"
puts '================================================================'
cmd="DESTROY:   hdiutil detach #{new_disk}"
puts cmd
cmd="RMDIR:     rmdir #{tmp_dir}"
puts cmd

puts '================================================================'


__END__
# # create
# hdiutil attach -nomount ram://1048576
# newfs_hfs -v RamDisk1 /dev/disk1
# mkdir /tmp/ttt
# mount -t hfs /dev/disk1  /tmp/ttt
# 
# # destroy
# hdiutil detach /dev/disk1
# rmdir /tmp/ttt



----

# # create
# hdiutil attach -nomount ram://1048576
# newfs_exfat  /dev/disk1
# mkdir /tmp/ttt
# mount -t exfat /dev/disk1  /tmp/ttt
# 
# #destroy
# hdiutil detach /dev/disk1