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Get current date/time in seconds
...ontrived - but I'll take a shot :) Suppose you have data time stamped with unix time, and want to determine it's age. More though I think this is what is most likely meant by 'the current date/time in seconds'; just my gut feeling.
– sje397
Sep 30 '10 at 12:10
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kill -3 to get java thread dump
I am using kill -3 command to see the JVM's thread dump in unix. But where can I find the output of this kill command? I am lost!!
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How to include jar files with java file and compile in command prompt
...java worked for me. I was using mac. I read somewhere that ':' is used for unix.
– Sri
May 25 '16 at 5:01
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Google Authenticator available as a public service?
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Google Authenticator generates a 6 digit code by from a SHA1-HMAC of the Unix time and the secret (lots more detail on this in the RFC)
The server also knows the secret / unix time to verify the 6-digit code.
I've had a play implementing the algorithm in javascript here: http://blog.tinisles.com...
Emacs in Windows
...ther as a command-line app (which happens to start a GUI). Windows, unlike Unix, distinguishes between these two things.
– Donal Fellows
Aug 24 '11 at 16:31
add a comment
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Where is Java Installed on Mac OS X?
...cepted answer did not work for me but this worked! (I'm normally not a mac/unix user)
– Roel
Jul 22 '16 at 15:36
@Paŭ...
How do I find where JDK is installed on my windows machine?
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If you are using Linux/Unix/Mac OS X:
Try this:
$ which java
Should output the exact location.
After that, you can set JAVA_HOME environment variable yourself.
In my computer (Mac OS X - Snow Leopard):
$ which java
/usr/bin/java
$ ls -l /usr...
Get time in milliseconds using C#
...w.Ticks / TimeSpan.TicksPerMillisecond;
This is actually how the various Unix conversion methods are implemented in the DateTimeOffset class (.NET Framework 4.6+, .NET Standard 1.3+):
long milliseconds = DateTimeOffset.Now.ToUnixTimeMilliseconds();
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How to calculate the difference between two dates using PHP?
...see jurka's answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate different time periods.
$date1 = "2007-03-24";
$date2 = "2009-06-26";
$diff = abs(strtotime($date2) - strtotime($date1...
Bootstrapping still requires outside support
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A super interesting discussion of this is in Unix co-creator Ken Thompson's Turing Award lecture.
He starts off with:
What I am about to describe is one of many "chicken and egg" problems that arise when compilers are written in their own language. In this ease, I ...