codeck

#apt-get install bundler
git clone https://github.com/stellar/xdrgen.git
bundle install --path vendor/bundle
bundle exec bin/xdrgen

codeck

#!/bin/bash
#
# edit fetsh.lst as a TSV file and press 'q' to stop polling
# poll period: 1 second
#
while [ 1 ]
do
    read -t 1 -n 1 char
    if [[ $char == 'q' ]]
    then

codeck

(mainly quoted from http://n3mesisfixx.blogspot.com/2013/07/configuring-exim4-to-route-to-many.html)

0. manage domain "enterprisedomain.com" and mx record and PTR/ip reverse name
1. install debian
2. setup exim4 domains
   run $dpkg-reconfigure exim4-config'
   set "type" as internet
   set "mail name" to *somelocalname* eg. debian or change /etc/mailname+/etc/hosts
   set "other dest domain"/dc_other_hostnames as "*somelocalname*; enterprisedomain.com;", make sure *somelocalname* in the list.
3. enable virtual alias

codeck

openssl rand 256|tr -dc '12345!@#$%qwertQWERTasdfgASDFGzxcvbZXCVB'|head -c12

codeck

wget https://download.libsodium.org/libsodium/releases/libsodium-0.6.0.tar.gz
tar zvfx libsodium-0.6.0.tar.gz
cd libsodium-0.6.0/
./configure --prefix=`realpath .`-bin
make && make install
cd ..

#diff --git a/SConstruct b/SConstruct
#index a4dca74..024e5e0 100644
#--- a/SConstruct

codeck

set _JAVA_OPTIONS=-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=8181
rem alternatively, 
rem set JAVA_TOOL_OPTIONS=-DsocksProxyHost=127.0.0.1 -DsocksProxyPort=8181
"SDK Manager"

codeck

#/bin/bash
#
#command to monitor a rippled stared by `./rippled --fg --net` with "full ledger_history" config
#
while [ 1 ];
do ./rippled -q server_info|grep "complete_ledger"|egrep -o '[[:digit:]]*'|head -n1|xargs -I{} ./rippled -q ledger {} |grep close_time_human;
sleep 5;
done

codeck

-- run by
-- "C:\Program Files\Wireshark\tshark" -Q -r ftp.pcapng -X lua_script:tcpflow.lua
local server = "1.1.1.1"
local tap = Listener.new("tcp", "ip.addr == "..server)

function gen_acc(seq) 
	local datas = {}
	local sum = 0
	local last_sum = 0

codeck

def timeit[T](f:()=>T)(count:Int=1) = {
  val st = System.nanoTime()
  var ti = 0
  var accu =  collection.mutable.ListBuffer.empty[T]
  while (ti < count) {
    f() +=: accu
    ti=ti+1
  }
  val ed = System.nanoTime()
  println(s"${(ed-st)/1000000} ms")

codeck

val arg1 = Iterator(2, 3, 4, 8, 9,  12, 14, 17)
val arg2 = Iterator(1, 2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 14, 17)
//??(arg1, arg2)=> Iterator((2, 4), (8, 9), (12, 12),(14, 17))

case class CeRange(start:Int, end:Option[Int]) {
  def passed(br: Int) = {
    end.map(br < _).getOrElse(true)
  }
}