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Why does sudo change the PATH?
...a feature of sudo on many distributions.
To work around this "problem" on ubuntu I do
the following in my ~/.bashrc
alias sudo='sudo env PATH=$PATH'
Note the above will work for commands that don't reset the $PATH themselves.
However `su' resets it's $PATH so you must use -p to tell it not to. I...
Restoring MySQL database from physical files
...the database, and same name of database in mysql mode.
sudo cp -rf /mnt/ubuntu_426/var/lib/mysql/database1 /var/lib/mysql/
Step 3: Change own and change mode the folder:
sudo chown -R mysql:mysql /var/lib/mysql/database1
sudo chmod -R 660 /var/lib/mysql/database1
sudo chown mysql:mysql /var/...
Keyboard shortcut for Jump to Previous View Location (Navigate back/forward) in IntelliJ IDEA
...ord.
Alt Graph+Left and Alt Graph+Right works well for me (IDEA 13.1.4 on Ubuntu under IceWM).
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...t have a default command.
When you run docker like this:
docker run -i -t ubuntu bash
the entrypoint is the default /bin/sh -c, the image is ubuntu and the command is bash.
The command is run via the entrypoint. i.e., the actual thing that gets executed is /bin/sh -c bash. This allowed Docker to...
How to change the default GCC compiler in Ubuntu?
I have installed gcc-3.3/g++-3.3 on ubuntu 11.04 which already has gcc/g++-4.4. So in my system both gcc-3.3 and 4.4 are available. I am able to call both compilers as I want. If I just call the command gcc then gcc-4.4 will get called. To call gcc-3.3, I have to use the command gcc-3.3 .
...
如何抓住痛点做出让用户尖叫的产品 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的情况下，体验到产品的优化改进。比如在微信（iOS版，Android版没有试用，不是很确定，理论上体验是会一致的）中有这样一个功能，当你做了手机屏幕截图的操作后，打开微信的任一聊天窗口，选择“+”号发送其他内容时，...
那些微信公众大号是如何赚钱的？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...入那蓝天白云，永远不会消逝。
微信公众大号变现养成系统
起步要早、内容要好、盈利模式要对路
“我的公众号招一个美术设计，你有兴趣吗？”“不好意思，我刚辞职自己做了个公众号。”如今的微信公众号与两年前已大...
【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
...地有计划地开和关，而且开的时间非常短，从而大大降低系统功耗并大大提高系统效率。现在我们看看连接状态下是如何把数据0x53发送出去的，从中大家可以体会到蓝牙协议栈分层的妙处。对开发者来说，很简单，他只需要调...
Learning Ruby on Rails
...leaner on linux.
Currently I'm dual booting and getting closer to running Ubuntu full time. I'm using gedit with various plugins for the development environment. And as of late 2010, I'm making the push to use Vim for development, even over Textmate on OS X.
A large amount of the Rails developers...
How to get the instance id from within an ec2 instance?
...s you can do:
$ ec2-metadata -i
instance-id: i-1234567890abcdef0
Or, on Ubuntu and some other linux flavours, ec2metadata --instance-id (This command may not be installed by default on ubuntu, but you can add it with sudo apt-get install cloud-utils)
As its name suggests, you can use the command...