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Cron job every three days
...
Run it every three days...
0 0 */3 * *
How about that?
If you want it to run on specific days of the month, like the 1st, 4th, 7th, etc... then you can just have a conditional in your script that checks for the current day of the month.
if (((date('j') - 1) % 3))
exit();
or...
@Transactional(propagation=Propagation.REQUIRED)
if some one can explain what this annotation do and when exactly we use it :
4 Answers
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How to round a number to n decimal places in Java
... convert a double to a string which rounds using the half-up method - i.e. if the decimal to be rounded is 5, it always rounds up to the next number. This is the standard method of rounding most people expect in most situations.
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How to allow http content within an iframe on a https site
I load some HTML into an iframe but when a file referenced is using http, not https, I get the following error:
9 Answers
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Return index of greatest value in an array
...it’s reliable and works on old browsers:
function indexOfMax(arr) {
if (arr.length === 0) {
return -1;
}
var max = arr[0];
var maxIndex = 0;
for (var i = 1; i < arr.length; i++) {
if (arr[i] > max) {
maxIndex = i;
max = arr[i];
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How to design a database for User Defined Fields?
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If performance is the primary concern, I would go with #6... a table per UDF (really, this is a variant of #2). This answer is specifically tailored to this situation and the description of the data distribution and access pa...
This Handler class should be static or leaks might occur: IncomingHandler
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If IncomingHandler class is not static, it will have a reference to your Service object.
Handler objects for the same thread all share a common Looper object, which they post messages to and read from.
As messages contain ...
What is the difference between Session.Abandon() and Session.Clear()
What is the difference between destroying a session and removing its values? Can you please provide an example demonstrating this?
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Identifying and removing null characters in UNIX
...I’d use tr:
tr < file-with-nulls -d '\000' > file-without-nulls
If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the command line, actually.
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Why does Google +1 record my mouse movements? [closed]
...<< 16) + event.Y) * (new Date().getTime() % 1000000);
c = c * b % d;
if (previousMouseMoveHandler) previousMouseMoveHandler.call(arguments);
d is (screen.width * screen.width + screen.height) * 1000000, and c is a variable that starts out as 1.
All of this is wrapped in the scope of an anon...