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Identify user in a Bash script called by sudo
...who am i | awk '{print $1}'
Alternatively (and simpler) you can use logname. It does the same thing as the above statement.
This gives you the username that logged in to the session.
These work regardless of sudo or sudo su [whatever]. It also works regardless of how many times su and sudo are...
What is “:-!!” in C code?
...e can be evaluated to be 0, and if not, to fail the build.
The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.)
You should read the expression like this:
sizeof(...
Good scalaz introduction [closed]
... lot of ideas from haskell and mathematics. Most articles that I found assume that you already feel comfortable with these concepts.
...
CodeIgniter activerecord, retrieve last insert id?
...
Shame on me...
I looked at the user guide and the first function is $this->db->insert_id();
This also works with activerecord inserts...
EDIT: I updated the link
...
What does $$ (dollar dollar or double dollar) mean in PHP?
...ample, if you consider this portion of code :
$real_variable = 'test';
$name = 'real_variable';
echo $$name;
You will get the following output :
test
Here :
$real_variable contains test
$name contains the name of your variable : 'real_variable'
$$name mean "the variable thas has its name co...
Does setWidth(int pixels) use dip or px?
...'re wondering how to use dips instead. The answer is in TypedValue.applyDimension(). Here's an example of how to convert dips to px in code:
// Converts 14 dip into its equivalent px
Resources r = getResources();
int px = Math.round(TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 14,r...
How to handle Back button with in the dialog?
... KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish();
dialog.dismiss();
}
return true;
}
});
...
What is “loose coupling?” Please provide examples
...al*salesTax;
return cartTotal;
}
}
Notice how the OrderTotal method (and thus the Order class) depends on the implementation details of the CartContents and the CartEntry classes. If we were to try to change this logic to allow for discounts, we'd likely have to change all 3 classes. A...
doesn't inherit the font from
...
font property automatic inherit if it is not mentioned, see here : developer.mozilla.org/en/CSS/font
– diEcho
May 21 '11 at 8:16
...
See what process is using a file in Mac OS X
...en processes in activity monitor but I think it's happening to quickly for me to see it. The reason for this is I'm using a framework and I think the system version of the framework is being used instead of the debug version and I'd like to see which process is touching it.
...