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Get last n lines of a file, similar to tail
I'm writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest item on the bottom.
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Using ls to list directories and their total sizes
... it possible to use ls in Unix to list the total size of a sub-directory and all its contents as opposed to the usual 4K that (I assume) is just the directory file itself?
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How might I find the largest number contained in a JavaScript array?
... edited May 22 '19 at 21:07
Andy
5,53244 gold badges3838 silver badges5252 bronze badges
answered Sep 4 '09 at 14:19
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How to increase request timeout in IIS?
... @Jowen: You rock! I had earlier changed debug to false days ago and didn't associate it with all the timeout errors I'd been receiving. Now I know.
– Doug S
Oct 31 '15 at 4:45
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What is the most efficient way of finding all the factors of a number in Python?
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The reduce(list.__add__, ...) is taking the little lists of [fac1, fac2] and joining them together in one long list.
The [i, n/i] for i in range(1, int(sqrt(n)) + 1) if n % i == 0 returns a pair of factors if the remainder when you divide n by the smaller one is zero (it doesn't need to check the...
Most efficient way to concatenate strings?
...ike:
x = f1(...) + f2(...) + f3(...) + f4(...)
that's one concat and it's zippy, StringBuilder probably won't help.
If your pattern looks like:
if (...) x += f1(...)
if (...) x += f2(...)
if (...) x += f3(...)
if (...) x += f4(...)
then you probably want StringBuil...
How to add manifest permission to an application?
I am trying to access HTTP link using HttpURLConnection in Android to download a file, but I am getting this warning in LogCat :
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List passed by ref - help me explain this behaviour
...e value of the variable (i.e. the reference - think "pointer") is copied - and changes to the value of the parameter inside ChangeList aren't seen by TestMethod.
try:
private void ChangeList(ref List<int> myList) {...}
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ChangeList(ref myList);
This then passes a reference to the local-v...
Reverse Y-Axis in PyPlot
I have a scatter plot graph with a bunch of random x, y coordinates. Currently the Y-Axis starts at 0 and goes up to the max value. I would like the Y-Axis to start at the max value and go up to 0.
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Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
...e a look here:
http://forums.asp.net/t/1314753.aspx
This isn't a bug, and is in fact the same approach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checked. So, if you leave the checkbox unchecked then
n...