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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...
How can I get Docker Linux container information from within the container itself?
...
Unless overridden, the hostname seems to be the short container id in Docker 1.12
root@d2258e6dec11:/project# cat /etc/hostname
d2258e6dec11
Externally
$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED ...
Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?
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I would check that the file is not empty first:
import os
scores = {} # scores is an empty dict already
if os.path.getsize(target) > 0:
with open(target, "rb") as f:
unpickler = pickle.Unpickler(f)
# if file is not empty scores will be equal
...
What is 'Context' on Android?
...ot be able to do if it didn't have the context?
– dinosaur
Apr 22 '16 at 17:33
15
A piece of code...
bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...f Ruby (it is itself packaged as a gem), but it a "de facto standard" for most applications (you will not find many people not using it, and no good reasons not to use it, actually).
RVM is a tool allowing you to install multiple versions of Ruby on a machine, switching between them when needed. Th...
How to install therubyracer gem on 10.10 Yosemite?
I don't manage to install therubyracer gem on Yosemite 10.10.
18 Answers
18
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Match two strings in one line with grep
...nswered Dec 20 '10 at 6:16
dheerosaurdheerosaur
11.6k66 gold badges2727 silver badges3030 bronze badges
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Is MonoTouch now banned on the iPhone? [closed]
A recent post by John Gruber notes that the following legalese:
18 Answers
18
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Should you commit .gitignore into the Git repos?
...mally yes, .gitignore is useful for everyone who wants to work with the repository. On occasion you'll want to ignore more private things (maybe you often create LOG or something. In those cases you probably don't want to force that on anyone else.
...
What is “android.R.layout.simple_list_item_1”?
...a reference to an built-in XML layout document that is part of the Android OS, rather than one of your own XML layouts.
Here is a further list of layouts that you can use:
http://developer.android.com/reference/android/R.layout.html
(Updated link thanks @Estel: https://github.com/android/platform_...