jpuyy的网志

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  • 连上openvpn后，几分钟后所有网站都打不开

    连上openvpn后，一段时间后就什么都打不开了

    但还是连接状态

    这能上的时间区间里，一直不流畅

    客户端中出现

    Replay-window backtrack occurred [1]
Replay-window backtrack occurred [2]...

    根据Linode VPS OpenVPN安装配置教程(基于Debian/Ubuntu)

     

  • ubuntu vps使用zh_CN.utf8编码

    使用

    locale -a

    发现只有英文编码，使用命令

    bash /usr/share/locales/install-language-pack zh_CN

    install-language-pack脚本内容如下：

    #!/bin/sh -e

if [ -z "$1" ]; then
    echo "Usage: $0 <language code> <class> [<version>]"
    exit 0
fi

# install locales for base packages (not for gnome/kde)
# (use "--no-purge" in case PURGE=yes is used in config, which would remove
#  all other locale files)
if [ -z "$2" ]; then
    /usr/sbin/locale-gen --no-purge --lang "$1"
fi

# ensure that .desktop caches are up to date
dpkg-trigger gmenucache || true

    通过如下命令，使默认编码为 zh_CN.utf8

    echo LANG="zh_CN.utf8" >> /etc/environment

    这样

    echo $LANG显示是
    zh_CN.utf8

    加其他语言编码雷同

    追加：
    使用dpkg-reconfigure来改变语言包更简单

    # dpkg-reconfigure locales

    CentOS7设置 locale

    localectl status # to display locale settings
localectl set-locale LANG=en_GB.utf8 # to set the Language

  • shell 毕业倒计时

    参考鸟哥linux私房菜p389

    #!/bin/bash
#for use:
#author: jpuyy date  jpuyy.com [email protected]
#modified by xx at date
#version:
#history:
#relate on:
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

echo "count down script"
echo "how many time to graduate"
read -p "please input your graduate time format like 20120620:" date2

date_d=$(echo $date2 | grep '[0-9]\{8\}')
if [ "$date_d" == "" ]; then
    echo "your input is wrong"
    exit 1
fi

declare -i date_dem=`date --date="$date2" +%s`
declare -i date_now=`date +%s`
declare -i date_total_s=$(($date_dem-$date_now))
declare -i date_d=$(($date_total_s/60/60/24))

if [ "$date_total_s" -lt "0" ]; then
    echo "you have graduated $((-1*$date_d)) days"
else
    declare -i date_h=$(($(($date_total_s-$date_d*60*60*24))/60/60))
    echo "you left $date_d days and $date_h hours."
fi

    执行

    其实不光有倒计时功能，也可以看已发生的事件到现在多长时间了

    收获：

    打代码时候vim颜色提醒了标点符号，节省了很多力气

    找码一定要打出来才知道掌握了多少，空想不可取，再少代码也不可复制。

    用到知识：date 和 时间换算常识

    root@www:/home/jpuyy/shellstudy# bash sh11.sh
count down script
how many time to graduate
please input your graduate time format like 20120620:20120620
you left 203 days and 11 hours.

    离毕业不远了啊

     

  • win7的上帝模式

    在任何一个地方新建一个文件夹

    重命名为

    GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

    :)EOT

  • 批处理生成以今天为名的文件夹

     

    @echo on
if not exist %date:~0,10% (md %date:~0,10%)

    RT

    :)EOT

  • windows显示当前目录下文件和文件夹的绝对路径

    执行下面脚本

    @echo on
@echo > txt.txt
@echo ========输出当前目录下的文件夹 >> txt.txt
@for /d %%i in (*.*) do @echo %~dp0%%%i>> txt.txt

@echo ========输出当前目录下的文件 >> txt.txt
@for %%c in (*.*) do @echo %~dp0%%%c>> txt.txt
@pause;

    会在txt.txt中出现

    ========输出当前目录下的文件夹
    F:\剧集\法证先锋III
    F:\剧集\法证先锋粤语大结局抢先版
    F:\剧集\美剧
    ========输出当前目录下的文件
    F:\剧集\txt.txt
    F:\剧集\xx.bat