test/xd.lua

   1 -- hex dump
   2 -- usage: lua xd.lua < file
   3
   4 local offset=0
   5 while true do
   6  local s=io.read(16)
   7  if s==nil then return end
   8  io.write(string.format("%08X  ",offset))
   9  string.gsub(s,"(.)",
  10         function (c) io.write(string.format("%02X ",string.byte(c))) end)
  11  io.write(string.rep(" ",3*(16-string.len(s))))
  12  io.write(" ",string.gsub(s,"%c","."),"\n")
  13  offset=offset+16
  14 end