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git add only modified changes and ignore untracked files
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No definite answer, only "works-for-most-people" answers? I have to use another process to do this correctly? How is this not built into git add? It seems like such a common thing to want to do.
– Samuel
Mar 30 '15 at 21:48...
How to determine if a process runs inside lxc/Docker?
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The most reliable way is to check /proc/1/cgroup. It will tell you the control groups of the init process, and when you are not in a container, that will be / for all hierarchies. When you are inside a container, you will see the ...
Set breakpoint in C or C++ code programmatically for gdb on Linux
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Yes, this should work across operating systems/compilers/debuggers.
– Håvard S
Dec 1 '10 at 16:24
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How to erase the file contents of text file in Python?
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In python:
open('file.txt', 'w').close()
Or alternatively, if you have already an opened file:
f = open('file.txt', 'r+')
f.truncate(0) # need '0' when using r+
In C++, you could use something similar.
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How to simulate a higher resolution screen? [closed]
...mments, tools for responsive design testing have been rolled out since in most browsers since the below solution was posted. They are likely the best/easiest option now.]
You could, correct me if I'm wrong, simply create an iframe with style="desired width & height" and src="your/test.site" as...
Best way to create a simple python web service [closed]
...thon web programming. I'd like to create a very simple web service that exposes some functionality from an existing python script for use within my company. It will likely return the results in csv. What's the quickest way to get something up? If it affects your suggestion, I will likely be adding m...
How to find and turn on USB debugging mode on Nexus 4
... see the option for USB debugging mode in Nexus 4 or Android 4.2 or higher OS, do the following:
Open up your device’s “Settings”. This can be done by pressing the
Menu button while on your home screen and tapping “System settings”
Now scroll to the bottom and tap “About phone” or ...
How does one remove an image in Docker?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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...”是一套为P2P机构、小额信贷机构和银行信贷部门设计的系统，实现了信用评分、个人借款数据、个人风险名单数据的三合一。宜信公司CEO唐宁深知，P2P公司在初期最难的就是风控，而市面上存在的两三千家P2P公司，规模和实力...
How can i take an UIImage and give it a black border?
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With OS > 3.0 you can do this:
//you need this import
#import <QuartzCore/QuartzCore.h>
[imageView.layer setBorderColor: [[UIColor blackColor] CGColor]];
[imageView.layer setBorderWidth: 2.0];
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