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How can I get Docker Linux container information from within the container itself?
...r 1.12
root@d2258e6dec11:/project# cat /etc/hostname
d2258e6dec11
Externally
$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d2258e6dec11 300518d26271 "bash" 5 minu...
Merge two (or more) lists into one, in C# .NET
...
You can use the LINQ Concat and ToList methods:
var allProducts = productCollection1.Concat(productCollection2)
.Concat(productCollection3)
.ToList();
Note that there are more efficient ways to do this -...
favicon.png vs favicon.ico - why should I use PNG instead of ICO?
...updates and notes from various others in this thread:
ICOs and PNGs both allow full alpha channel based transparency
ICO allows for backwards compatibility to older browsers (e.g. IE6)
PNG probably has broader tooling support for transparency, but you can find tools to create alpha-channel ICOs as...
Responsive font size in CSS
... of the height of the initial containing block.
vmin unit - Equal to the smaller of vw or vh.
vmax unit - Equal to the larger of vw or vh.
And they are used in exactly the same way as any other CSS value:
.text {
font-size: 3vw;
}
.other-text {
font-size: 5vh;
}
Compatibility is relatively go...
PostgreSQL ERROR: canceling statement due to conflict with recovery
...ows. Then secondary has to replay this cleanup, and has to forcibly cancel all queries which can use these rows.
Longer queries will be canceled more often.
You can work around this by starting a repeatable read transaction on primary which does a dummy query and then sits idle while a real query ...
Is it considered acceptable to not call Dispose() on a TPL Task object?
...oft pfx team has this to say:
Task.Dispose exists due to Task
potentially wrapping an event handle
used when waiting on the task to
complete, in the event the waiting
thread actually has to block (as
opposed to spinning or potentially
executing the task it's waiting on).
If all yo...
A CSS selector to get last visible div
...uery and those tags were added by another answerer. 1nfected - do you actually want jQuery? If so, please actually put that in your question. Otherwise, you should accept this answer instead.
– jep
Oct 11 '13 at 15:11
...
Shell - How to find directory of some command?
...d that this was just an alias defined on my .bashrc located on my ~home. Really thank you.
– Gabriel L. Oliveira
May 20 '10 at 13:36
1
...
How to center a checkbox in a table cell?
...lt;/table>
CSS
td {
text-align: center; /* center checkbox horizontally */
vertical-align: middle; /* center checkbox vertically */
}
table {
border: 1px solid;
width: 200px;
}
tr {
height: 80px;
}
I hope this helps.
...
Count immediate child div elements using jQuery
... how the question specifies he wants to count only the "div" elements, not all elements.
– Angel Blanco
Mar 5 '14 at 11:55
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