windwiny

def oo(cylinder, sector)
  sector *= 512
  aa=<<-EOS
echo "cylinder: #{cylinder}"
losetup -o #{sector} /dev/loop1 /dev/sdb3
if [ $? -eq 0 ] ; then
  mount /dev/loop1 /tmp/11 2>/dev/null
  if [ $? -eq 0 ] ; then
    echo "offset #{sector} byte find a file system!!"

windwiny

# proc, lambda difference
# Proc.new/proc  -->  not check parameter, return outside method
# lambda/->      -->  check parameter, return just return lambda

p '------------------'
def test_1
  p 'begin'
  p1 = Proc.new do |x,y| p [x,y]; return end
  p1.call
  p 'end'

windwiny

require 'zlib'

def show_lba0(rawdata)
  puts "LBA0 ( MBR  or  PMBR )"
  mbr = rawdata[446...512]
  if mbr.size!=66 ||  mbr[-2..-1].unpack('CC') != [0x55, 0xaa]
    puts "Not valid MRB part data"
    puts
    return
  end

windwiny

#!/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

windwiny

$load = []
File.foreach 'LOAD.out' do |line|
  if line =~/^\* LOAD:\s*table(.*)$/
    $load << $cc if $cc
    tbs = $1.gsub /\s/,''
    $cc=[tbs, -1, -1, -1, -1, -1]
    
  elsif line =~ /Rows read:(.*)$/
    $cc[1] = $1.to_i
  elsif line =~ /Loaded:(.*)$/

windwiny

----

Linux 基于策略的路由(Linux Policy Routing)

Linux 有传统的基于数据包目的地址的路由算法，和新的基于策略的路由算法
新算法优点：支持多个路由表，支持按数据报属性（源地址、目的地址、协议、端口、数据包大小、内容等）选择不同路由表


# 查看规则命令，后面可跟其它参数，默认为 show(list) 显示全部
ip rule

windwiny

=begin


 fdisk -l  output sector to CHS

=end

def sect2chs sec
        sec = sec.to_i
        return "" if sec == 0

windwiny

require 'net/ssh'

host = "the.host"
user = "joe"
su_user = "bob"
password = "password"
su_password = "password"

commands = ['export PS1="\n[$?] [\t] $PS1----\n"', "cd /", "pwd", "ls -l", "exit"]
finished = ("%08x" * 8) % Array.new(8) { rand(0xFFFFFFFF) }

windwiny

with timeout of 3600 seconds
	tell application "Finder"
		set sel to (get selection)
		if not sel = {} then --selected file/dir
			repeat with f in sel
				set _cwd to POSIX path of (folder of f as alias)
				exit repeat --first item path
			end repeat
		else --not select

windwiny

class String
  # like python expandtabs
  def expandtabs tabsize=8
    self.gsub(/[^\r\n]*/) do |line|
      next line if line == ''
      ss = line.split("\t", -1)
      next line if ss.size == 1
      sa = []
      lasts = ss.pop