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How is Docker different from a virtual machine?
...ly known as libcontainer), which runs in the same operating system as its host. This allows it to share a lot of the host operating system resources. Also, it uses a layered filesystem (AuFS) and manages networking.
AuFS is a layered file system, so you can have a read only part and a write part wh...
How to check if a path is absolute path or relative path in cross platform way with Python?
...
os.path.isabs returns True if the path is absolute, False if not. The documentation says it works in windows (I can confirm it works in Linux personally).
os.path.isabs(my_path)
...
Copy file or directories recursively in Python
...yanything(src, dst):
try:
shutil.copytree(src, dst)
except OSError as exc: # python >2.5
if exc.errno == errno.ENOTDIR:
shutil.copy(src, dst)
else: raise
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Sound alarm when code finishes
...uency in Hz and the duration is in milliseconds.
On Linux and Mac
import os
duration = 1 # seconds
freq = 440 # Hz
os.system('play -nq -t alsa synth {} sine {}'.format(duration, freq))
In order to use this example, you must install sox.
On Debian / Ubuntu / Linux Mint, run this in your termin...
Detect iPad users using jQuery?
...e (and can be spoofed). It's preferred to use actual feature-detection in most cases, which can be done through a library like Modernizr.
As pointed out in Brennen's answer, issues can arise when performing this detection within the Facebook app. Please see his answer for handling this scenario.
R...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...态内存，文件描述符等，执行完是否有正确释放？指针等操作是否规范？
性能如何
是否有一些执行耗时的操作，I/O，网络文件下载，文件解析等，是否可以进行优化？是否会影响到功能体验？使用异步线程执行会更好吗？
...
Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...环境有大致的认识。
1.1． Linux进程及进程同步
进程是操作系统中执行特定任务的一个实体，在保护模式下每个进程拥有其特定的指令空间及内存空间，Linux环境下每一个程序可以对应一个或多个进程，可以由一个主进程管理多...
Most pythonic way to delete a file which may not exist
...
A more pythonic way would be:
try:
os.remove(filename)
except OSError:
pass
Although this takes even more lines and looks very ugly, it avoids the unnecessary call to os.path.exists() and follows the python convention of overusing exceptions.
It may be ...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
...：CD ROM
◆ 显示：VGA或更高级显示器，推荐SuperVGA。
◆ 操作系统：Microsoft Windows 95或以后版本或者MicrosoftWindows NT 4.0，NT要求Service Pack 3或更高版本(包括ServicePack 3)
◆ 外围设备/其它: Microsoft Internet Explorer 4.01 Service Pack1 (包含).
2...
Get Android Device Name [duplicate]
...t Android device name you have to add only a single line of code:
android.os.Build.MODEL;
Found here: getting-android-device-name
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