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How to process SIGTERM signal gracefully?
...gnal":
signal.signal(signal.SIGTERM, sigterm_handler)
try:
print "Hello"
i = 0
while True:
i += 1
print "Iteration #%i" % i
sleep(1)
finally:
print "Goodbye"
Now see the Ctrl+C behaviour:
$ ./signals-test.py default
Hello
Iteration #1
Iteration #2
Iter...
Changing capitalization of filenames in Git
....
mv: allow renaming to fix case on case insensitive filesystems
"git mv hello.txt Hello.txt" on a case insensitive filesystem always triggers "destination already exists" error, because these two names refer to the same path from the filesystem's point of view and requires the user to give "--for...
How to create a cron job using Bash automatically without the interactive editor?
...ntab -l > mycron
#echo new cron into cron file
echo "00 09 * * 1-5 echo hello" >> mycron
#install new cron file
crontab mycron
rm mycron
Cron line explaination
* * * * * "command to be executed"
- - - - -
| | | | |
| | | | ----- Day of week (0 - 7) (Sunday=0 or 7)
| | | ------- Month (...
What is the difference between IEqualityComparer and IEquatable?
...comparisons. Note that a IEqualityComparer<String> which considers "hello" equal to both "Hello" and "hElLo" must consider "Hello" and "hElLo" equal to each other, but for most comparison methods that wouldn't be a problem.
– supercat
Mar 19 '13 at 20:03...
How to create an HTTPS server in Node.js?
...q, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
};
var server = http.createServer();
server.setSecure(credentials);
server.addListener("request", handler);
server.listen(8000);
s...
JavaScript: clone a function
...: "You shall not pass!" }); // this object is binded
newFunc.apply({ msg: "hello world" }); //logs "You shall not pass!" instead
Bound function object, instanceof treats newFunc/oldFunc as the same. Credit to @Christopher
(new newFunc()) instanceof oldFunc; //gives true
(new oldFunc()) instanceof...
Disable output buffering
...(self.stream, attr)
import sys
sys.stdout = Unbuffered(sys.stdout)
print 'Hello'
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...
Determine path of the executing script
...ing",other.name,"from",script.name))
source(other.name)
other.R:
print("hello")
output:
burner@firefighter:~$ main.R
[1] "Sourcing /home/burner/bin/other.R from /home/burner/bin/main.R"
[1] "hello"
burner@firefighter:~$ bin/main.R
[1] "Sourcing bin/other.R from bin/main.R"
[1] "hello"
burner@f...
Check if value exists in Postgres array
...ll throw error: ERROR: syntax error at or near "any"
select 1 where any('{hello}'::text[]) = 'hello';
Whereas below example works fine
select 1 where 'hello' = any('{hello}'::text[]);
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Blocks and yields in Ruby
... the block. In 1.8, you'd get something like the following:
>> a = "Hello"
=> "Hello"
>> 1.times { |a| a = "Goodbye" }
=> 1
>> a
=> "Goodbye"
Whereas 1.9 would give you:
>> a = "Hello"
=> "Hello"
>> 1.times { |a| a = "Goodbye" }
=> 1
>> a
=> ...