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How to Free Inode Usage?
...ries that contain lots of files, this script may help:
#!/bin/bash
# count_em - count files in all subdirectories under current directory.
echo 'echo $(ls -a "$1" | wc -l) $1' >/tmp/count_em_$$
chmod 700 /tmp/count_em_$$
find . -mount -type d -print0 | xargs -0 -n1 /tmp/count_em_$$ | sort -n
rm ...
Java 7 language features with Android
...tch
Multiple-catch (catch (Exc1 | Exc2 e))
Underscore in number literals (1_234_567)
Binary literals (0b1110111)
And these features cannot be used yet:
The try-with-resources statement — because it requires the non-existing interface "java.lang.AutoCloseable" (this can be used publicly in 4.4+...
How to get IntPtr from byte[] in C#
... the Fixed keyword instead of using the GC
– goodguys_activate
Dec 17 '12 at 21:59
...
MongoDB Many-to-Many Association
...intain the roles in separate documents then you can include the document's _id in the roles array instead of the name:
{name:"Joe"
,roles:["4b5783300334000000000aa9","5783300334000000000aa943","6c6793300334001000000006"]
}
and set up the roles like:
{_id:"6c6793300334001000000006"
,rolename:"Eng...
In Python, when should I use a function instead of a method?
... as cars. You mention a duck, so let's go with that.
class duck:
def __init__(self):pass
def eat(self, o): pass
def crap(self) : pass
def die(self)
....
In the context of the "objects are real things" analogy, it is "correct" to add a class method for anything which the obje...
How to filter a dictionary according to an arbitrary condition function?
...
points_small = dict(filter(lambda (a,(b,c)): b<5 and c < 5, points.items()))
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LINQ with groupby and count
...03/2011 0 | 2
jim 3 01/04/2011 1 | 3
jean 1 01/05/2011 3 | 1
jill 2 01/06/2011 5 | 2
jeb 0 01/07/2011 3 | 0
jenn 0 01/08/2011 7 | 0
it would result in the following result after the groupby:
(Group 1): [joe 1 01/01/2011 5, jean 1 01/05/2011 3]
(Group 0): [jane 0 01/02/2011 9, jeb 0 01/07/...
Android Use Done button on Keyboard to click button
... if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
Log.i(TAG,"Enter pressed");
}
return false;
}
});
...
How to select rows from a DataFrame based on column values?
...
To select rows whose column value equals a scalar, some_value, use ==:
df.loc[df['column_name'] == some_value]
To select rows whose column value is in an iterable, some_values, use isin:
df.loc[df['column_name'].isin(some_values)]
Combine multiple conditions with &:
d...
How to properly URL encode a string in PHP?
...owever, you shouldn't need to use urldecode() on variables that appear in $_POST and $_GET.
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