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How can I select random files from a directory in bash?
...a script that uses GNU sort's random option:
ls |sort -R |tail -$N |while read file; do
# Something involving $file, or you can leave
# off the while to just get the filenames
done
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How to Update Multiple Array Elements in mongodb
...pdate each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it replacing the
older one (check "Update if
Current" if you want to ensure
atomic updates)
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What's the meaning of exception code “EXC_I386_GPFLT”?
...verwriting some pointer data with other stuff, or going out of bounds when reading some pointer value.
Another likely causes is unaligned access with an SSE register - in other word, reading a 16-byte SSE register from an address that isn't 16-byte aligned.
There are, as I said, many other possi...
How does the new automatic reference counting mechanism work?
...performance...ARC puts a bigger priority on performance". I'm surprised to read that when it is well known that reference counting is much slower than tracing garbage collection. flyingfrogblog.blogspot.co.uk/2011/01/…
– J D
Jan 26 '14 at 12:49
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Printing hexadecimal characters in C
I'm trying to read in a line of characters, then print out the hexadecimal equivalent of the characters.
7 Answers
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Can I use the range operator with if statement in Swift?
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This version seems to be more readable than pattern matching:
if (200 ... 299).contains(statusCode) {
print("Success")
}
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sed beginner: changing all occurrences in a folder
...S CODE DOES NOT WORK
because the shell truncates the file before sed can read it.
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I've found my software as cracked download on Internet, what to do?
...at someone thought their software was worth stealing. I mean, didn't you already know that? Why else would you spend time creating it if you didn't think it was worth anything?
I'd wager you would not say, "Wow, I had some great stuff and feel honored someone went to all the trouble of taking it." ...
Reminder - \r\n or \n\r?
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@RobKennedy haha you know I came here and read about return, and thought "great!". Then I read your comment. Now every time I can't remember which key I shouldn't be looking at - I look at my "Enter" key and I think "something's very wrong here"... haha over thinking...
Wireshark localhost traffic capture [closed]
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If you're using Windows it's not possible - read below. You can use the local address of your machine instead and then you'll be able to capture stuff. See CaptureSetup/Loopback.
Summary: you can capture on the
loopback interface on Linux, on
various BSDs inclu...