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How to get arguments with flags in Bash
... show brief help"
echo "-a, --action=ACTION specify an action to use"
echo "-o, --output-dir=DIR specify a directory to store output in"
exit 0
;;
-a)
shift
if test $# -gt 0; then
export PROCESS=$1
else
echo "no ...
Pythonic way to create a long multi-line string
... quotes to start and end them.
s = """ this is a very
long string if I had the
energy to type more and more ..."""
You can use single quotes too (3 of them of course at start and end) and treat the resulting string s just like any other string.
NOTE: Just as with any string, anyt...
When to use f:viewAction / preRenderView versus PostConstruct?
...o use one or the other based on the type of scope of the backing bean e.g. If the backing bean is @RequestScoped , then would the choice of using f:viewAction or preRenderView over @PostConstruct to initialize your backing bean prior to rendering the view be irrelevant as the two would result...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...e and passwords, etc... I want to keep information secure, but I know that if I hash their information, I can't retrieve it for later use.
...
Synthetic Class in Java
...ou have a switch statement, java creates a variable that starts with a $. If you want to see an example of this, peek into the java reflection of a class that has a switch statement in it. You will see these variables when you have at least one switch statement anywhere in the class.
To answer y...
When to create a new app (with startapp) in Django?
...
Does that mean, if I make a child model, it must always be in the same app? Since I can't easily drop it into another project without bringing over two "apps"
– Lionel
Feb 10 '11 at 5:22
...
jQuery: Wait/Delay 1 second without executing code
...orms the check every second using setTimeout:
var check = function(){
if(condition){
// run when condition is met
}
else {
setTimeout(check, 1000); // check again in a second
}
}
check();
s...
Multi-line tooltips in Java?
...
If you wrap the tooltip in <html> and </html> tags, you can break lines with <br> tags. See http://www.jguru.com/faq/view.jsp?EID=10653 for examples and discussion.
Or you can use the JMultiLineToolTip c...
When creating a service with sc.exe how to pass in context parameters?
... anything containing special characters or spaces.
It is advisable to specify a Display Name for the service as well as setting the start setting to auto so that it starts automatically. You can do this by specifying DisplayName= yourdisplayname and start= auto in your create statement.
Here is an...
Are there benefits of passing by pointer over passing by reference in C++?
...
A pointer can receive a NULL parameter, a reference parameter can not. If there's ever a chance that you could want to pass "no object", then use a pointer instead of a reference.
Also, passing by pointer allows you to explicitly see at the call site whether the object is passed by value or by ...