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How do I rename the extension for a bunch of files?
...h, there's no need for external commands like sed, basename, rename, expr, etc.
for file in *.html
do
mv "$file" "${file%.html}.txt"
done
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fo...
Mocking python function based on input arguments
...f you want to preserve Mock's capabilities (assert_called_once, call_count etc):
self.mock.side_effect = {'input1': 'value1', 'input2': 'value2'}.get
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What does the “>” (greater-than sign) CSS selector mean?
...K everywhere else. This resource is esp. useful for siblings, :nth-child() etc where support is still incomplete
– FelipeAls
Jul 12 '10 at 4:59
...
Convert base64 string to ArrayBuffer
...4) {
var dataUrl = "data:application/octet-binary;base64," + base64;
fetch(dataUrl)
.then(res => res.arrayBuffer())
.then(buffer => {
console.log("base64 to buffer: " + new Uint8Array(buffer));
})
}
// buffer to base64
function bufferToBase64Async( buffer ) {
var bl...
How to programmatically close a JFrame
...ialize all of the native resources again (graphics buffer, window handles, etc).
dispose() might be closest to the behavior that you really want. If your app has multiple windows open, do you want Alt-F4 or X to quit the app or just close the active window?
The Java Swing Tutorial on Window Listen...
Best way to alphanumeric check in JavaScript
...th special character letters used in some languages, like "ą", "ź", "ć" etc.
– Rafał Swacha
Jan 15 '16 at 12:01
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How do I obtain the frequencies of each value in an FFT?
...
i: Bin to access
samples: Sampling rate in Hertz (i.e. 8000 Hz, 44100Hz, etc.)
nFFT: Size of the FFT vector
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psql: could not connect to server: No such file or directory (Mac OS X)
...with either one of these commands
sudo service postgresql restart
sudo /etc/init.d/postgresql restart
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Is it possible to start a shell session in a running container (without ssh)
...oing things outside docker so you won't be able to track it (logs, attach, etc). Also, docker might use lxc right now, but there is no warranty it will do so forever.
– creack
Jul 30 '13 at 21:57
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One line ftp server in python
...
No resume, single connection, etc.
– bugmenot123
Sep 15 '16 at 9:36
@Roma...