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How to check if a Unix .tar.gz file is a valid file without uncompressing?
... the case with GNU tar -- do you know if this is this true elsewhere (BSD, etc.)?
– belacqua
May 13 '14 at 17:59
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Unloading classes in java?
...t.
Done right there should not come a ClassCastException or LinkageError etc.
For more informations about class loader hierarchies (yes, that's exactly what you are implementing here ;- ) look at "Server-Based Java Programming" by Ted Neward - that book helped me implementing something very simil...
Dilemma: when to use Fragments vs Activities:
...r, it's easy to clear all the Fragments, insert more than on Fragments and etcs. But for Activity, it will be a nightmare to manipulate those stuff.
A much predictable lifecycle. As long as the host Activity is not recycled. the Fragments in the backstack will not be recycled. So it's possible to us...
Is there a way to change the environment variables of another process in Unix?
...hich calls for one of the IPC methods (shared memory, semaphores, sockets, etc.). Having received data by one of these methods you could then set environment variables or perform other actions more directly.
How to change facet labels?
...re-defined lists of names indexed by the facet index names ('Hostpital#1', etc.).
Edit: The above method fails if you pass a variable/value combination that the labeller doesn't know. You can add a fail-safe for unknown variables like this:
plot_labeller <- function(variable,value){
if (var...
Get position/offset of element relative to a parent container?
... a button with an inner icon or text span, an li element with inner spans. etc...
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What is the difference between HAVING and WHERE in SQL?
... a minority queries would need to be rewritten using a derived table, CTE, etc but they would arguably be easier to understand and maintain as a result. Maybe vendors' optimizer code would need to be rewritten to account for this, again an opportunity for improvement within the industry.
Now consid...
Docker can't connect to docker daemon
...g SSH command: Something went wrong running an SSH command!
command : cat /etc/os-release
err : exit status 255
output :
just re-run the three commands another time, and it should work the second time.
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Android studio using > 100% CPU at all times - no background processes appear to be running
...pears there are no background processes that the IDE is running (indexing, etc). I might suspect this were something specific to my box, but some fellow developers are encountering this as well.
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Calling async method synchronously
...sulting product is also library and can be used anywhere including ASP.NET etc.
– dimzon
Oct 12 '15 at 23:24
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