oldratlee

#!/bin/bash
set -eEuo pipefail

# https://stackoverflow.com/questions/6928946/mysterious-lineno-in-bash-trap-err
# https://stackoverflow.com/questions/64786/error-handling-in-bash
# https://stackoverflow.com/questions/24398691/how-to-get-the-real-line-number-of-a-failing-bash-command
# https://unix.stackexchange.com/questions/39623/trap-err-and-echoing-the-error-line
# https://unix.stackexchange.com/questions/462156/how-do-i-find-the-line-number-in-bash-when-an-error-occured
# https://unix.stackexchange.com/questions/365113/how-to-avoid-error-message-during-the-execution-of-a-bash-script
# https://shapeshed.com/unix-exit-codes/#how-to-suppress-exit-statuses

oldratlee

@peng_gong的程序员必读书单不错，核对了一下自己。

“读完”指从头到尾读完的；“读过”是指有读但中途放下了。
当然有些书是在自己年轻时读完的，当时阅历尚浅理解吸收有限，要再读！ 😊

PS：
这里个人强调于区分“读完” vs. “读过”，是因为对于编程了解原则还远远不够，循环往复的理解操练是标配，按这个节奏打穿一本书的体系是开始也是过程。
个人觉得如果连“读完”好书建立书中的体系这样级别的磨练都不行，那路是不是走得着急了！ 😄

PPS： 📚我的豆瓣读书

oldratlee

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
 
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
 
public class HttpServerTest {

oldratlee

static boolean sslVerificationDisabled = false;

public static synchronized void disableSslVerification() {
    if (sslVerificationDisabled) return;
    try {
        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return null;
            }

oldratlee

#!/bin/bash
PROG=`basename $0`
timestamp=`date "+%Y%m%d_%H%M%S"`
TMP=/tmp/${PROG}_${timestamp}

ge() {
    [ $(echo "$1 >= $2" | bc) == 1 ]
}

dumpMemBiter() {

oldratlee

Description

ssh break the while loop.

0</dev/null or -n option of ssh can resolve this problem.

Sample Code

oldratlee

#!/bin/bash
# comment-coverage-report.sh
#     generate comment coverage report, markdown table format
#
# NOTE:
# 1. run at project root dir
# 2. install ohcount: https://github.com/blackducksw/ohcount
#    if you use mac install by brew: brew install ohcount

set -euo pipefail

oldratlee

• https://www.slf4j.org
• https://www.slf4j.org/legacy.html

SLF4J Binding

LOG4J-12

oldratlee

gcor() {
  # http://stackoverflow.com/questions/5188320/how-can-i-get-a-list-of-git-branches-ordered-by-most-recent-commit
  # --sort=-committerdate : sort branch by commit date in descending order
  # --sort=committerdate : sort branch by commit date in ascending order
  git branch -a --sort=committerdate "$@" |
  awk -F'remotes/origin/' '/remotes\/origin\//{print $2}' |
  tail -1 |
  xargs git checkout
}

oldratlee

import scala.collection.immutable.ListSet

object ScalaLinearization {

  case class Clazz(className: Symbol, superClasses: ListSet[Clazz])

  // Ignore Any, AnyRef. Simplify demo implementation
  val animal = Clazz('Animal, ListSet())
  val furry = Clazz('Furry, ListSet(animal))
  val hasLegs = Clazz('HasLegs, ListSet(animal))