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How to execute a MySQL command from a shell script?
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mysql -h <host> -u<user> -p<password> database -e \
"SELECT * FROM blah WHERE foo='bar';"
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Android: Access child views from a ListView
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I've tried this, for doing selections. It usually works but there are off-by-one errors sometimes and it isn't reliable. I wouldn't recommend it.
– Timmmm
Sep 18 '12 at 12:13
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“The file ”MyApp.app“ couldn't be opened because you don't have permission to view it” when running
...ile adding library (manually copy).
So that Xcode is getting confused for selecting correct Info.plist.
I just removed that Info.plist from the added library.
Then it is working fine without any permission alert.
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How to prevent the activity from loading twice on pressing the button
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This is the correct approach. It will even handle Button Selected States for you (if you provide them) and all the Material Design “goodies” you’d expect from a simple standard Widget. I can’t believe people use timers for this. Then you start seeing strange libraries to ha...
Undo git update-index --assume-unchanged
...will print all files with their status
grep '^[a-z]' will filter files and select only assume unchanged
cut -c 3- will remove status and leave only paths, cutting from the 3-rd character to the end
tr '\012' '\000' will replace end of line character (\012) to zero character (\000)
xargs -0 git updat...
How to open a Bootstrap modal window using jQuery?
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Just call the modal method(without passing any parameters) using jQuery selector.
Here is example:
$('#modal').modal();
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How should I print types like off_t and size_t?
...o I suggest you should first check the length size_t on your platform then select one of them:
if sizeof(size_t) == 4 use PRIu32
if sizeof(size_t) == 8 use PRIu64
And I suggest using stdint types instead of raw data types for consistancy.
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Getting attributes of Enum's value
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This is a generic implementation using a lambda for the selection
public static Expected GetAttributeValue<T, Expected>(this Enum enumeration, Func<T, Expected> expression)
where T : Attribute
{
T attribute =
enumeration
.GetType()
.GetMe...
pandas: filter rows of DataFrame with operator chaining
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Since version 0.18.1 the .loc method accepts a callable for selection. Together with lambda functions you can create very flexible chainable filters:
import numpy as np
import pandas as pd
df = pd.DataFrame(np.random.randint(0,100,size=(100, 4)), columns=list('ABCD'))
df.loc[lambda ...
How to prevent page scrolling when scrolling a DIV element?
...rollTop property). An alternative and IMO better approach would be to only selectively disable the browser's scrolling in order to prevent the page scroll, but not the DIV scroll. Check out Rudie's answer below which demonstrates this solution.
Here you go:
$( '.scrollable' ).on( 'mousewheel DO...