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Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
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126
Short of closing and reopening your tty (i.e. logging off and back on, which may also terminat...
Efficient way to insert a number into a sorted array of numbers?
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15 Answers
15
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How do I calculate percentiles with python/numpy?
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11 Answers
11
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Is there a way to 'uniq' by column?
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sort -u -t, -k1,1 file
-u for unique
-t, so comma is the delimiter
-k1,1 for the key field 1
Test result:
overflow@domain2.com,2009-11-27 00:58:29.793000000,xx3.net,255.255.255.0
stack2@domain.com,2009-11-27 01:05:47.893000000,xx2.n...
Add new row to dataframe, at specific row-index, not appended?
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159
Here's a solution that avoids the (often slow) rbind call:
existingDF <- as.data.frame(mat...
Why does this go into an infinite loop?
...ent(MutableInt x) {
int valueBeforeIncrement = x.intValue();
x.add(1);
return new MutableInt(valueBeforeIncrement);
}
Right? Increment the value passed and return the original value: that's the definition of the postincrement operator.
Now, let's see how this behavior plays out in you...
How to round the minute of a datetime object
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17 Answers
17
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How to get the last character of a string in a shell?
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101
That's one of the reasons why you need to quote your variables:
echo "${str:$i:1}"
Otherwise,...