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python: how to send mail with TO, CC and BCC?
...
Don't add the bcc header.
See this: http://mail.python.org/pipermail/email-sig/2004-September/000151.html
And this: """Notice that the second argument to sendmail(), the recipients, is passed as a list. You can include any number of addresses in the list to ha...
Match whole string
...var pat = /\b(abc)\b/g;
console.log(str.match(pat));
Live example: http://jsfiddle.net/uu5VJ/
If the former solution works for you, I would advise against using it.
That means you may have something like the following:
var strs = ['abc', 'abc1', 'abc2']
for (var i = 0; i < strs.length...
How does Amazon RDS backup/snapshot actually work?
...es.
This article helps explain EBS limitations and snapshot functionality http://blog.rightscale.com/2008/08/20/amazon-ebs-explained/ Again, while it's not explicit, it would make sense for Amazon to be using this infrastructure to provide RDS services.
Typically, a MySQL backup, in contrast to a ...
Loading/Downloading image from URL on Swift
...ypically from a nib.
print("Begin of code")
let url = URL(string: "https://cdn.arstechnica.net/wp-content/uploads/2018/06/macOS-Mojave-Dynamic-Wallpaper-transition.jpg")!
downloadImage(from: url)
print("End of code. The image will continue downloading in the background and it will b...
Useful example of a shutdown hook in Java?
...antee on the order in which shutdown hooks are started.For more info refer http://techno-terminal.blogspot.in/2015/08/shutdown-hooks.html
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Remove whitespaces inside a string in javascript
...)); // $Q$W$E$R$TY$
Performance comparison - /\s+/g is faster. See here: http://jsperf.com/s-vs-s
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How many files can I put in a directory?
...tion to this speed problem. I wrote a pretty detailed article about it at: http://www.olark.com/spw/2011/08/you-can-list-a-directory-with-8-million-files-but-not-with-ls/
The key take away is: use getdents() directly -- http://www.kernel.org/doc/man-pages/online/pages/man2/getdents.2.html rather th...
Uninstall old versions of Ruby gems
...rvm/gems/ruby-2.1.1@project/cache/nokogiri-1.6.6.2.gem
For more detail:
http://blog.grepruby.com/2015/04/way-to-clean-up-gem-or-remove-old.html
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
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http://jeremy.zawodny.com/blog/archives/010717.html :
#!/bin/bash
FAIL=0
echo "starting"
./sleeper 2 0 &
./sleeper 2 1 &
./sleeper 3 0 &
./sleeper 2 0 &
for job in `jobs -p`
do
echo $job
wait $job || ...
Rails 3 datatypes?
...nto a column.
I hope that helps someone! Also, here's the official list: http://guides.rubyonrails.org/migrations.html#supported-types
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