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dd: How to calculate optimal blocksize? [closed]
...ug mailing list, circa 2002, recommending a block size of 64K here: http://www.mail-archive.com/eug-lug@efn.org/msg12073.html
For determining THE optimal output block size, I've written the following script that tests writing a 128M test file with dd at a range of different block sizes, from the de...
What's the difference between a continuation and a callback?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
DateTime.ToString(“MM/dd/yyyy HH:mm:ss.fff”) resulted in something like “09/14/2013 07.20.31.371”
...n, this time though archive.org: web.archive.org/web/20161030193739/http://www.heikniemi.net/…
– Håkon Seljåsen
Jan 20 '17 at 10:39
...
Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...ance along with the requirements. You can find the full doc here:
https://www.pcisecuritystandards.org/security_standards/pci_dss.shtml
Long story short, create a separate network segment for whichever servers will be dedicated to storing CC info (usually DB server(s)). Isolate the data as much as...
Regex to validate date format dd/mm/yyyy
...1-9]|1[012])[- /.](19|20)\d\d$
you can test regular expression at http://www.regular-expressions.info/javascriptexample.html easily.
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Escaping HTML strings with jQuery
...
@amwinter, I extended script above adding "\n" : '<br>' to entity map and updated regexp to /[&<>"'\/]|[\n]/g
– walv
Jun 25 '14 at 16:30
...
Is errno thread-safe?
... is thread-specific. POSIX requires that errno be threadsafe.
See http://www.unix.org/whitepapers/reentrant.html
In POSIX.1, errno is defined as an
external global variable. But this
definition is unacceptable in a
multithreaded environment, because its
use can result in nondeterminist...
python: how to send mail with TO, CC and BCC?
...ngs I need to be able to send messages not only TO specific mailboxes, but CC and BCC them as well. It does not look like smtplib supports CC-ing and BCC-ing while sending emails.
...
SVG gradient using CSS
...Gradient);
}
<svg width="100" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg">
<style type="text/css">
rect{fill:url(#MyGradient)}
</style>
<defs>
<linearGradient id="MyGradient">
<stop offset="5%" stop...
Scala: Abstract types vs generics
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...