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Is file append atomic in UNIX?

... granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it possible that two lines get mangle...
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How to obtain a Thread id in Python?

...ython docs on Thread.name say "name - A string used for identification purposes only. It has no semantics. Multiple threads may be given the same name. The initial name is set by the constructor." – drevicko Dec 4 '12 at 6:10 ...
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How do I rename all files to lowercase?

... user2066039: This must must be a recent thing on the Mac, because most answers older than a year don't account for it. I accomplished the task by using an intermediate extension like 'jpg1'. So, JPG -> jpg1 -> jpg. Hope that helps. – Joyce Nov 1 '...
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How to make a countdown timer in Android?

... MainActivity.java package com.zeustechnocrats.countdown; import android.os.Bundle; import android.os.Handler; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; import java.text.SimpleDateFormat; import j...
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How can I create a directly-executable cross-platform GUI app using Python?

...gram that will convert your python scripts into standalone executables. Cross-platform GUI libraries with Python bindings (Windows, Linux, Mac) Of course, there are many, but the most popular that I've seen in wild are: Tkinter - based on Tk GUI toolkit (de-facto standard GUI library for python...
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What is the easiest way to get current GMT time in Unix timestamp format?

... Output: 1369550494.884832 For the standard CPython implementation on most platforms this will return a UTC value. share | improve this answer | follow | ...
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How to use Git for Unity3D source control?

...up to date version checkout Github maintained Unity.gitignore file without OS specifics. # =============== # # Unity generated # # =============== # Temp/ Library/ # ===================================== # # Visual Studio / MonoDevelop generated # # ===================================== # Exported...
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How to read a file without newlines?

... only works if the file ends with a newline, otherwise the last line will lose a character. This assumption is true in most cases (especially for files created by text editors, which often do add an ending newline anyway). If you want to avoid this you can add a newline at the end of file: with o...
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Go install fails with error: no install location for directory xxx outside GOPATH

... @RobertReiz while I share your frustration, I should point out that most other languages do in fact use these, but maybe they're not as visible. For example, Python (a language famous for its simplicity) has PYTHONHOME instead of GOROOT and PYTHONPATH instead of GOPATH. Even (GC)C has LIBRARY_...
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Why can't strings be mutable in Java and .NET?

...ss authentication which is necessary before the call will be passed to OS. If String was mutable it was possible somehow to modify its content after the authentication check before OS gets request from program then it is possible to request any file. So if you have a right to open te...