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How would I get a cron job to run every 30 minutes?
...rontab does not understand "intervals", it only understands "schedule"
valid hours: 0-23 -- valid minutes: 0-59
example #1
30 * * * * your_command
this means "run when the minute of each hour is 30" (would run at: 1:30, 2:30, 3:30, etc)
example #2
*/30 * * * * your_command
this means "run whe...
Get “Internal error in the expression evaluator” on “Add watch” function when trying to debug WCF se
...r in the expression evaluator". Add watch function works normal on client side, but in service code it broken. I'm trying to debug my own WCF service running on the localhost. Could you help me, how to repair this?
...
How to make overlay control above all other controls?
...
If you are using a Canvas or Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
<Canvas>
<Rectangle ...
How to use RSpec's should_raise with any kind of exception?
...ions/v/2-13/docs/built-in-matchers/raise-error-matcher
RSpec 1:
http://apidock.com/rspec/Spec/Matchers/raise_error
http://apidock.com/rspec/Spec/Matchers/raise_exception
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How to specify font attributes for all elements on an html web page?
...font family, font size, color etc. it seems that some nested elements override these with ugly browser defaults.
6 Answers
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Android: how to make an activity return results to the activity which calls it?
...ing like below. You should pass the requestcode as shown below in order to identify that you got the result from the activity you started.
startActivityForResult(new Intent(“YourFullyQualifiedClassName”),requestCode);
In the activity you can make use of setData() to return result.
Intent dat...
Operator overloading : member function vs. non-member function?
...
A common way to avoid making your non-member operators require friend is to implement them in terms of the operation-assignment operators (which will almost certainly be public members). For example, you could define T T::operator+=(const T &a...
Does it make sense to do “try-finally” without “catch”?
...oncrete example of handling the exception from a calling method.
public void yourOtherMethod() {
try {
yourMethod();
} catch (YourException ex) {
// handle exception
}
}
public void yourMethod() throws YourException {
try {
db.store(mydata);
} finall...
How to get VM arguments from inside of Java application?
... answered Oct 7 '09 at 14:32
David SchulerDavid Schuler
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Grepping a huge file (80GB) any way to speed it up?
...from the following filename. Similar to cat file.sql | parallel ... but avoids a UUOC. GNU parallel also has a way to read input from a file using parallel ... :::: file.sql. HTH.
– Steve
Oct 21 '19 at 21:26
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