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What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
What does "opt" mean (as in the "opt" directory)? I commonly see this directory in Unix systems with development tools inside.
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Fastest way to extract frames using ffmpeg?
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You mean ffmpeg -r 1 -i file.mp4 -r 1 "$filename%03d.png, right? (you were missing the -i)
– Joschua
Jan 23 at 19:00
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What is the difference between MOV and LEA?
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LEA means Load Effective Address
MOV means Load Value
In short, LEA loads a pointer to the item you're addressing whereas MOV loads the actual value at that address.
The purpose of LEA is to allow one to perform a non-trivial ...
WPF Command Line
...top of your App.xaml file and remove it:
StartupUri="Window1.xaml"
That means that the application won't automatically instantiate your main window and show it.
Next, override the OnStartup method in your App class to perform the logic:
protected override void OnStartup(StartupEventArgs e)
{
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C# Sortable collection which allows duplicate keys
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all right you mean to say, that the very time an element is inserted in the list, it should be inserted in the correct position as per the sort. Please correct me if wrong. Let me have a look, will get back in short moment
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Git: Ignore tracked files
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Could you give more details on what this means and what it's doing by chance?
– rogerdpack
Jan 30 '17 at 16:52
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rotating axis labels in R
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Not sure if this is what you mean, but try setting las=1. Here's an example:
require(grDevices)
tN <- table(Ni <- stats::rpois(100, lambda=5))
r <- barplot(tN, col=rainbow(20), las=1)
That represents the style of axis labels. (0=parallel, ...
Accessing localhost (xampp) from another computer over LAN network - how to?
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There you go, that means its listening for any request on port 80, not just localhost, so, if your PC was called vr3609, then http to it should take you to your website.
– BugFinder
Apr 2 '11 at 17:43
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Ignoring time zones altogether in Rails and PostgreSQL
... same time zone setting all is fine. For a different time zone setting the meaning changes, but value and display stay the same.
timestamptz
Handling of timestamptz is subtly different. I quote the manual here:
For timestamp with time zone, the internally stored value is always in UTC (Universal Co...
Get first key in a (possibly) associative array?
... @user3019105 There is only one internal pointer per array, which means that if any code outside your function changes it (by calling next, reset, end or looping through the array), you won't get the expected value when you call key. So yes, always call reset before using key to be sure you...