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Difference between single and double square brackets in Bash
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89
Behavior differences
Tested in Bash 4.3.11:
POSIX vs Bash extension:
[ is POSIX
[[ is a Ba...
Python matplotlib multiple bars
...dd labels to x axis? As in to each group of bars?
– x89
Aug 2 at 18:02
change the xticks of the plot, e.g. plt.xticks(...
Is there any difference between a GUID and a UUID?
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89
This is why astronauts are not allowed to install Windows on the ISS.
– intuited
Jul 28 '15 at 22:02...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
...00 0.00 0.00 0.00
02:40:59 PM eth0 6093.00 1135.00 8970988.00 82942.00 0.00 0.00 0.00
02:40:59 PM eth1 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Average: IFACE rxpck/s txpck/s rxbyt/s txbyt/s rxcmp/s txcmp/s...
How can I check if a URL exists via PHP?
....0 (Windows NT 6.0) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1"); // pretend we're a regular browser
@curl_exec($ch);
if(@curl_errno($ch)){ // should be 0
@curl_close($ch);
return false;
}
$code = @curl_getinfo($...
Access-control-allow-origin with multiple domains
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abatishchev
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answered Aug 17 '13 at 16:00
bsandhubsa...
Browser detection in JavaScript? [duplicate]
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kennebeckennebec
89.8k2828 gold badges9696 silver badges123123 bronze badges
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What is the best way to programmatically detect porn images? [closed]
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89
votes
This is actually reasonably easy. You can programatically detect skin tones ...
How to assign from a function which returns more than one value?
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ShaneShane
89.7k3131 gold badges215215 silver badges215215 bronze badges
...
How do I remove the Devise route to sign up?
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89
you can do this in your model
# typical devise setup in User.rb
devise :database_authenticatab...