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Signal handling with multiple threads in Linux
...ogram (that possibly has multiple threads) receives a signal, like SIGTERM or SIGHUP?
2 Answers
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Aborting a shell script if any command returns a non-zero value?
...ero exit value. A simple command is any command not part of an if, while, or until test, or part of an && or || list.
See the bash(1) man page on the "set" internal command for more details.
I personally start almost all shell scripts with "set -e". It's really annoying to have a script ...
Ruby sleep or delay less than a second?
...h of a second between sending the commands. What is the best way to sleep for less than a second?
2 Answers
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textarea - disable resize on x or y?
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resize: vertical;
or
resize: horizontal;
Quick fiddle: http://jsfiddle.net/LLrh7Lte/
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Are static class instances unique to a request or a server in ASP.NET?
On an ASP.NET website, are static classes unique to each web request, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them?
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Rails: Why does find(id) raise an exception in rails? [duplicate]
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Because that's the way the architects intended find(id) to work, as indicated in the RDoc:
Find by id - This can either be a specific id (1), a list of ids (1, 5, 6), or an array of ids ([5, 6, 10]). If no record can be found for all of the listed ids, then RecordNotFound will be ...
Saving an Object (Data persistence)
...ndard library.
Here's an elementary application of it to your example:
import pickle
class Company(object):
def __init__(self, name, value):
self.name = name
self.value = value
with open('company_data.pkl', 'wb') as output:
company1 = Company('banana', 40)
pickle.dump(...
What does the brk() system call do?
According to Linux programmers manual:
8 Answers
8
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What does !! mean in ruby?
...nvention stand.
Think of it as
!(!some_val)
One thing that is it used for legitimately is preventing a huge chunk of data from being returned. For example you probably don't want to return 3MB of image data in your has_image? method, or you may not want to return your entire user object in the ...
API Keys vs HTTP Authentication vs OAuth in a RESTful API
I'm working on building a RESTful API for one of the applications I maintain. We're currently looking to build various things into it that require more controlled access and security. While researching how to go about securing the API, I found a few different opinions on what form to use. I've seen ...