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Java system properties and environment variables
What's the difference between system properties System.getProperties() and environment variables System.getenv() in a JVM?
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Should try…catch go inside or outside a loop?
...w which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
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How to download all files (but not HTML) from a website using wget?
How to use wget and get all the files from website?
8 Answers
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How to make an Android device vibrate?
I wrote an Android application. Now, I want to make the device vibrate when a certain action occurs. How can I do this?
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How to get everything after last slash in a URL?
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You don't need fancy things, just see the string methods in the standard library and you can easily split your url between 'filename' part and the rest:
url.rsplit('/', 1)
So you can get the part you're interested in simply with:
url.rsplit('/', 1)[-1]
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Brew doctor says: “Warning: /usr/local/include isn't writable.”
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Take ownership of it and everything in it.
Mac OS High Sierra or newer: (ty to Kirk in the comments below)
$ sudo chown -R $(whoami) $(brew --prefix)/*
Previous versions of macos:
$ sudo chown -R $USER:admin /usr/local/include
Then do anot...
How to list active / open connections in Oracle?
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Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action:
– pistacchio
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How to include package data with setuptools/distribute?
...ry distribution.
In any case, using MANIFEST.in will work both for binary and for source distributions.
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What is a deadlock?
...s try to access the same resource at the same time.
One process loses out and must wait for the other to finish.
A deadlock occurs when the waiting process is still holding on to another resource that the first needs before it can finish.
So, an example:
Resource A and resource B are used by pro...
Generating a SHA-256 hash from the Linux command line
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On OSX, it might be handy to create an alias: alias sha256sum='shasum --algorithm 256'
– Jonathan Cross
Jun 4 '16 at 13:21
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