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How to change the output color of echo in Linux
...use different numbers, not given here.
Text mode commands
tput bold # Select bold mode
tput dim # Select dim (half-bright) mode
tput smul # Enable underline mode
tput rmul # Disable underline mode
tput rev # Turn on reverse video mode
tput smso # Enter standout (bold) mode
tput...
How to uncheck a radio button?
...nt need the each function; you could just chain the removeAttr call to the selector.
– cjstehno
Jan 22 '10 at 13:55
6
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Determine what attributes were changed in Rails after_save callback?
...
The "selected" answer didn't work for me. I'm using rails 3.1 with CouchRest::Model (based on Active Model). The _changed? methods don't return true for changed attributes in the after_update hook, only in the before_update hook. ...
Why is Visual Studio 2013 very slow?
...available" check box to prevent the use of hardware graphics acceleration.
Select or clear the "Enable rich client visual experience" check box to make sure that rich visuals are always on or off, respectively. When this check box is selected, rich visuals are used independent of the computer enviro...
Modify UIImage renderingMode from a storyboard/xib file
..., but in an .xcassets library.
After adding an image to an asset library, select the image and open the attributes inspector on the right side of Xcode. Find the attribute 'Render As' and set it to 'template'.
After setting an image's rendering mode, you can add a tint color to the UIImageView in ...
Using semicolon (;) vs plus (+) with exec in find
...+
This variant of the -exec option runs the specified command on
the selected files, but the command line is built by appending
each selected file name at the end; the total number of
invocations of the command will be much less than the number of
matched files. The command line is built...
How to specify different Debug/Release output directories in QMake .pro file
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This one worked better than the selected answer. The selected one works, but if both debug and release are configured, the second block of settings remains.
– Paulo Carvalho
Jan 23 '18 at 16:59
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MySQL - length() vs char_length()
... in two bytes. Or UTF-8, where the number of bytes varies. For example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
...
How to install Google Play Services in a Genymotion VM (with no drag and drop support)?
...ges provided by OpenGapps.
I tried and this worked:
Visit opengapps.org
Select x86 as platform
Choose the Android version corresponding to your virtual device
Select nano as variant
Download the zip file
Drag & Drop the zip installer in new Genymotion virtual device (2.7.2 and above only)
Fol...
javac not working in windows command prompt
...anced" tab ⇒ Environment Variables
In "System Variables", scroll down to select "PATH" ⇒ Edit
(( now read the following 3 times before proceeding, THERE IS NO UNDO ))
In "Variable value" field, INSERT "c:\Program Files\Java\jdk1.8.0_xx\bin" (Replace xx with the upgrade number and VERIFY that ...