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Sleep until a specific time/date
...ch - $current_epoch ))
sleep $sleep_seconds
To add precision down to nanoseconds (effectively more around milliseconds) use e.g. this syntax:
current_epoch=$(date +%s.%N)
target_epoch=$(date -d "20:25:00.12345" +%s.%N)
sleep_seconds=$(echo "$target_epoch - $current_epoch"|bc)
sleep $sleep_seco...
How many threads is too many?
... into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
...
Search for executable files using find command
...ny execute permissions are set": It means that -perm +111 may yield false positives, i.e., files that the current user cannot actually execute. There's no way to emulate -executable by testing permissions alone, because what's needed is to relate the file's user and group identity to the current use...
std::string formatting like sprintf
...tream? I'm assuming you have specific reasons to not just do this:
std::ostringstream stringStream;
stringStream << "Hello";
std::string copyOfStr = stringStream.str();
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OAuth secrets in mobile apps
...uth.
If you think about it and ask the question why we have secrets, is mostly for provision and disabling apps. If our secret is compromised, then the provider can only really revoke the entire app. Since we have to embed our secret in the desktop app, we are sorta screwed.
The solution is to h...
Significant new inventions in computing since 1980
This question arose from comments about different kinds of progress in computing over the last 50 years or so.
129 Answer...
What are the minimum margins most printers can handle?
... edited Apr 12 at 2:43
aaronsnoswell
5,41255 gold badges4141 silver badges6363 bronze badges
answered Aug 18 '10 at 15:01
...
Phase • Animations made easy! - Extensions - Kodular Community
...grid;
place-items: center;
backface-visibility: hidden;
position: absolute;
left: 0;
top: 0;
width: 100%;
z-index: 1001;
--animation-state: paused;
}
#d-splash .preloader-image {
max-width: 100%;
height: 100vh;
}
#d-splash...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...ith a Raspberry Pi. When we potentially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
...
How do I measure time elapsed in Java? [duplicate]
...
Unfortunately, none of the ten answers posted so far are quite right.
If you are measuring elapsed time, and you want it to be correct, you must use System.nanoTime(). You cannot use System.currentTimeMillis(), unless you don't mind your result being wrong.
The ...