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Difference between return and exit in Bash functions
...lications/scripts, not functions. So in this regard, the only keyword that sets the exit code of the script (the one that can be caught by the calling program using the $? shell variable) is exit.
EDIT 2:
My last statement referring exit is causing some comments. It was made to differentiate retur...
Effect of a Bitwise Operator on a Boolean in Java
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...billionlog2(billion)
In general, if you need the largest K numbers from a set of N numbers, the complexity is O(NlogK) rather than O(NlogN), this can be very significant when K is very small comparing to N.
EDIT2:
The expected time of this algorithm is pretty interesting, since in each iteration ...
Using comparison operators in Scala's pattern matching system
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How do I force make/GCC to show me the commands?
... another option. Sample Makefile:
a:
@echo a
Output:
+ echo a
a
This sets the special SHELL variable for make, and -x tells sh to print the expanded line before executing it.
One advantage over -n is that is actually runs the commands. I have found that for some projects (e.g. Linux kernel) th...
Linux bash: Multiple variable assignment
...ork: so that bash can launch the date command. In the second example, you set up a pipeline between date and your sub-shell. I think bash these days is clever enough not to actually fork into the subshell, but I'm not sure about that. At any rate, it looks like it would :)
– O...
MySQL table is marked as crashed and last (automatic?) repair failed
...
If your MySQL process is running, stop it. On Debian:
sudo service mysql stop
Go to your data folder. On Debian:
cd /var/lib/mysql/$DATABASE_NAME
Try running:
myisamchk -r $TABLE_NAME
If that doesn't work, you can try...
Iteration ng-repeat only X times in AngularJs
...r a range.limitTo is useless in that case. It's not about iterating over a set of values that mean something on their own,it's iterating 4 times for instance.not 4 times over a slice of an existing array,just 4 times. just like in coffeescript when you create an adhoc slice , like "[0..4]" ,you don...
How do I declare an array of weak references in Swift?
...
It's kind of late for party, but try mine. I implemented as a Set not an Array.
WeakObjectSet
class WeakObject<T: AnyObject>: Equatable, Hashable {
weak var object: T?
init(object: T) {
self.object = object
}
var hashValue: Int {
if let object = ...
Can't use NVM from root (or sudo)
...rectory (where user installed global files should live on a linux VPS) and setting the permissions so that all users can access them.
Hope this helps!
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