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Convert UTC Epoch to local date
I have been fighting with this for a bit now. I’m trying to convert epoch to a date object. The epoch is sent to me in UTC. Whenever you pass new Date() an epoch, it assumes it’s local epoch. I tried creating a UTC object, then using setTime() to adjust it to the proper epoch, but the only m...
What is the “reactor” in Maven?
...r and am confused by its terminology usage. I've read that a multi-module is a reactor, that you can manipulate the maven reactor and that the reactor is a plugin. What exactly is the reactor?
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Why does Git treat this text file as a binary file?
I wonder why git tells me this:?
14 Answers
14
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How to convert Linux cron jobs to “the Amazon way”?
...d (Amazon EC2 machines). It's going great so far but the way we do crons is sub-optimal. I have a Amazon-specific question about how to best manage cron jobs in the cloud using "the Amazon way".
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Argparse: Required argument 'y' if 'x' is present
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No, there isn't any option in argparse to make mutually inclusive sets of options.
The simplest way to deal with this would be:
if args.prox and (args.lport is None or args.rport is None):
parser.error("--prox requires --lport an...
How to find the last field using 'cut'
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You could try something like this:
echo 'maps.google.com' | rev | cut -d'.' -f 1 | rev
Explanation
rev reverses "maps.google.com" to be moc.elgoog.spam
cut uses dot (ie '.') as the delimiter, and chooses the first field, which is moc
lastly, we revers...
Is there a read-only generic dictionary available in .NET?
...ad only property. How do I prevent consumers from changing my data? If this were an IList I could simply return it AsReadOnly . Is there something similar I can do with a dictionary?
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Inline comments for Bash?
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My preferred is:
Commenting in a Bash script
This will have some overhead, but technically it does answer your question
echo abc `#put your comment here` \
def `#another chance for a comment` \
xyz etc
And for pipeli...
How do you sort an array on multiple columns?
I have a multidimensional array. The primary array is an array of
16 Answers
16
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Python append() vs. + operator on lists, why do these give different results?
...e to self in that spot (hence the infinite recursion).
The difference here is that the + operation acts specific when you add an array (it's overloaded like others, see this chapter on sequences) by concatenating the element. The append-method however does literally what you ask: append the object o...