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Python Script execute commands in Terminal
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There are several ways to do this:
A simple way is using the os module:
import os
os.system("ls -l")
More complex things can be achieved with the subprocess module:
for example:
import subprocess
test = subprocess.Popen(["ping","-W","2","-c", "1", "192.168.1.70"], stdout=subprocess...
What languages are Windows, Mac OS X and Linux written in?
I was just wondering who knows what programming languages Windows, Mac OS X and Linux are made up from and what languages are used for each part of the OS (ie: Kernel, plug-in architecture, GUI components, etc).
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Meaning of acronym SSO in the context of std::string
...hes 16.
On the macbook, the jump happens when the length reaches 23. This confirms that SSO depends on the platform implementation.
Ubuntu
Macbook Pro
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What are the differences between virtual memory and physical memory?
...r head around have to do with specific implementations of virtual memory, most likely paging. There is no one way to do paging - there are many implementations and the one your textbook describes is likely not the same as the one that appears in real OSes like Linux/Windows - there are probably subt...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
记录一些Mac OS X技巧用了几个月Mac OS X，发现很多东西不记录下来就会找不到，于是就有了这篇日志。重启Finder有些设置更改以后需要重启Finder才能生效，最简...用了几个月Mac OS X，发现很多东西不记录下来就会找不到，于是就有...
MySQL: @variable vs. variable. What's the difference?
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In MySQL, @variables are global. This is easily confirmed. Set one outside of a function and then evaluate it inside of one. Conversely, set one inside of a function and evaluate it outside of it. You will see the function does not protect the scope of such. They step ...
Build fat static library (device + simulator) using Xcode and SDK 4+
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Can anyone confirm if this method works for XCode 4.5? I am trying to compile a static library and use it in my main project. I am able to run this on the device but not on the simulator. This is the error I get: missing required archit...
Android destroying activities, killing processes
... quotes above are come from: Android Developers Reference: Activity
It is confirmed that the system can destroy non-acitve activities and recycle memories when you launched some memory consuming applications. And you can implement like: isFinishing() in your activity and then using "kill" button in...
Codesign error: Certificate identity appearing twice
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+1: I can confirm that XCode does indeed keep a "cache" of the certificates and adds them on its launch-- it's terrible that it works this way! It causes so many problems! Shame on you Apple, this has caused hours of lost time due to f...
How to fix “Attempted relative import in non-package” even with __init__.py
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@MarkAmery Almost lost my mind trying to grok how all this works, relative imports within a project with subdirectories with py files that have __init__.py files yet you keep getting the ValueError: Attempted relative import in non-package...