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How to count lines in a document?
... -l /dir/file.txt
3272485 /dir/file.txt
Or, to omit the <filename> from the result use wc -l < <filename>:
$ wc -l < /dir/file.txt
3272485
You can also pipe data to wc as well:
$ cat /dir/file.txt | wc -l
3272485
$ curl yahoo.com --silent | wc -l
63
...
Core Data vs SQLite 3 [closed]
...ng forward and backward links consistent when objects are added/removed to/from a relationship). Core Data is thus an ideal framework for building the "model" component of an MVC architecture.
To implement its graph management, Core Data happens to use SQLite as a disk store. It could have been imp...
What's the difference between “mod” and “remainder”?
...nteger type. C11dr §6.5.5 2
The result of the / operator is the quotient from the division of the first operand by the second; the result of the % operator is the remainder ... C11dr §6.5.5 5
What's the difference between “mod” and “remainder”?
C does not define "mod", such as the in...
how to programmatically fake a touch event to a UIButton?
...
Yeah, that's cool stuff, but I'm trying to do it from within the app, not via Instruments (if that's the method you mean.)
– Olie
Oct 27 '10 at 13:50
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...his field really belongs to the object itself or if it is simply inherited from the prototype chain and thus belongs to all the objects of that type.
for (o in listeners) {
if (listeners.hasOwnProperty(o)) {
console.log(o);
}
}
//prints:
// 0
// 1
// 2
Note, that although th...
How to create a inset box-shadow only on one side?
... distance. This is often overlooked, but supported by all major browsers"
From the answerer's fiddle:
box-shadow: inset 0 -10px 10px -10px #000000;
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Why are my basic Heroku apps taking two seconds to load?
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If your application is unused for a while it gets unloaded (from the server memory).
On the first hit it gets loaded and stays loaded until some time passes without anyone accessing it.
This is done to save server resources. If no one uses your app why keep resources busy and not...
Difference between jar and war in Java
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From Java Tips: Difference between ear jar and war files:
These files are simply zipped files
using the java jar tool. These files are
created for different purposes. Here
is the description of these files:
...
WPF Databinding: How do I access the “parent” data context?
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I used this to bind to a ICommand on my VM from a ContextMenu set on a ListBoxItem from within a Style. Worked great, thanks!!
– Wil P
Nov 2 '11 at 17:13
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What's the difference between belongs_to and has_one?
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That is pretty much the same the accepted answer from two years ago already states.
– matthias krull
Oct 5 '12 at 18:26
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