bionic

Ubuntu 18.04换国内源

≡放荡痞女 提交于 2019-12-04 17:31:07
参考文档: https://blog.csdn.net/zhangjiahao14/article/details/80554616 https://blog.csdn.net/xiangxianghehe/article/details/80112149 1.复制源文件备份,以防万一 我们要修改的文件是sources.list,它在目录/etc/apt/下,sources.list是包管理工具apt所用的记录软件包仓库位置的配置文件,同样类型的还有位于 同目录下sources.list.d文件下的各种.list后缀的各文件。 命令如下: sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak 2.编辑源列表文件 命令如下: sudo vim /etc/apt/sources.list 3.查看新版本信息 其实Ubuntu18.04版之前的任一版更改apt源为国内源方法早就有了,内容大同小异,我们应当掌握其规律了,其实每一版内容不同的地方就是版本号(或者官方一点的说:系统代号),所以我们先了解下新版本的系统代号: 使用如下命令: lsb_release -c 得到本系统的系统代号,如下图所示: 我们可以看到新版本的Ubuntu系统代号为bionic 同样的我们也可以得到之前任意版本的系统代号: Ubuntu 12.04

如何在Linux环境中运行Dynamic Web TWAIN的文件扫描上传示例

那年仲夏 提交于 2019-12-01 22:00:00
Dynamic Web TWAIN示例代码中,文件扫描上传只提供了ASP.NET的实现。要在Linux中运行.NET Framework的代码需要用Mono。 Ubuntu中安装Mono 通过命令行查看下系统版本: $lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic 下载对应的 Mono 。 安装 XSP : sudo apt install mono-xsp4 在Linux环境中部署Web文档扫描上传应用 从GitHub上获取 Dynamic Web TWAIN 示例源码 : cd ~ git clone https://github.com/Dynamsoft/Dynamic-Web-TWAIN.git cd ~/Dynamic-Web-TWAIN/samples/Upload Download/Visual Studio Demo 申请 30天试用的证书 。 打开 UploadWithHTTP.html 修改JS代码: <script type="text/javascript"> Dynamsoft.WebTwainEnv.ProductKey = 'Your

ubuntu换源

你离开我真会死。 提交于 2019-11-28 21:51:25
sudo vim /etc/apt/sources.list #清华源 deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-updates main restricted universe multiverse deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports main restricted universe multiverse deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ bionic-backports

Windows的Linux子系统搭建数据科学环境

孤者浪人 提交于 2019-11-28 16:07:33
近日看到R语言中文社区上一篇关于Windows的Linux子系统搭建Python和R环境的文章,加上虾神也在宣传,于是我也动手来玩一玩。之前很早就了解过WSL,但一直没动手使用,趁机来学习一下。 1 Windows Subsystem for Linux(WSL)简介 简介一下WSL。 Windows Subsystem for Linux(简称WSL)是一个为在Windows 10上能够原生运行Linux二进制可执行文件(ELF格式)的兼容层。它是由微软与Canonical公司合作开发,目标是使纯正的Ubuntu 14.04 "Trusty Tahr"映像能下载和解压到用户的本地计算机,并且映像内的工具和实用工具能在此子系统上原生运行。WSL提供了一个微软开发的Linux兼容内核接口(不包含Linux代码),来自Ubuntu的用户模式二进制文件在其上运行。该子系统不能运行所有Linux软件,例如那些图形用户界面,以及那些需要未实现的Linux内核服务的软件。不过,这可以用在外部X服务器上运行的图形X Window系统缓解。此子系统起源于命运多舛的Astoria项目,其目的是允许Android应用运行在Windows 10 Mobile上。此功能组件从Windows 10 Insider Preview build 14316开始可用。——维基百科 2 WSL安装 在开始菜单里搜索

What library does ld option -lrt refer to (Bionic libc)?

廉价感情. 提交于 2019-11-28 08:54:25
What does this option to ld mean? -lrt I know to some degree it means that ld is looking for the library with real-time extensions, but after searching extensively, I couldn't find an exact definition (or which library) this is referring to. With Bionic (android) libc, the android NDK docs detail that this (along with pthreads) has been integrated. I ask because it seems to be implicit (ie when I invoke the compiler, a custom-compiled gdc, directly, I get a message saying that ld cannot find -lrt) EDIT From the Bionic Overview Bionic's C library comes with its own pthread implementation

What library does ld option -lrt refer to (Bionic libc)?

末鹿安然 提交于 2019-11-27 02:30:28
问题 What does this option to ld mean? -lrt I know to some degree it means that ld is looking for the library with real-time extensions, but after searching extensively, I couldn't find an exact definition (or which library) this is referring to. With Bionic (android) libc, the android NDK docs detail that this (along with pthreads) has been integrated. I ask because it seems to be implicit (ie when I invoke the compiler, a custom-compiled gdc, directly, I get a message saying that ld cannot find