class Session::Command

def initialize(command) 

def initialize(command)
  @cmd = command.to_s
  @cmdno = self.class.cmdno
  self.class.cmdno += 1
  @err = ''
  @out = ''
  @cid = "%d_%d_%d" % [$$, cmdno, rand(Time.now.usec)]
  @begin_out = "__CMD_OUT_%s_BEGIN__" % cid
  @end_out = "__CMD_OUT_%s_END__" % cid
  @begin_out_pat = %r/#{ Regexp.escape(@begin_out) }/
  @end_out_pat = %r/#{ Regexp.escape(@end_out) }/
  @begin_err = "__CMD_ERR_%s_BEGIN__" % cid
  @end_err = "__CMD_ERR_%s_END__" % cid
  @begin_err_pat = %r/#{ Regexp.escape(@begin_err) }/
  @end_err_pat = %r/#{ Regexp.escape(@end_err) }/
end