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Meaning of $? (dollar question mark) in shell scripts
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This is the exit status of the last executed command.
For example the command true always returns a status of 0 and false always returns a status of 1:
true
echo $? # echoes 0
false
echo $? # echoes 1
From the manual: (acessible by calling man bash in your shell)
$?...
IOS 7 Navigation Bar text and arrow color
I want to set background for Navigation Bar to be black and all colors inside it to be white .
11 Answers
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How to get the file name from a full path using JavaScript?
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var filename = fullPath.replace(/^.*[\\\/]/, '')
This will handle both \ OR / in paths
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How to mock the Request on Controller in ASP.Net MVC?
...estBase>();
// Not working - IsAjaxRequest() is static extension method and cannot be mocked
// request.Setup(x => x.IsAjaxRequest()).Returns(true /* or false */);
// use this
request.SetupGet(x => x.Headers).Returns(
new System.Net.WebHeaderCollection {
{"X-Requested-With", "XM...
Python loop that also accesses previous and next values
How can I iterate over a list of objects, accessing the previous, current, and next items? Like this C/C++ code, in Python?
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Xcode 5: Code signing entitlement errors
... new application which is going to support IOS 7. I got the new XCode 5 GM and tried to sign my apps using my fresh provisioning profile and distribution certificate, but i'm having trouble with distribution. I constantly get the following error:
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Unable to make the session state request to the session state server
...nistrative Tools –> Services
Right-click on the ASP.NET State Service and click “start”
Additionally you could set the service to automatic so that it will work after a reboot
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Remove all elements contained in another array
... @AlecRust Convert all elements of toRemove() to upper case and change in the callback from el to el.toUpperCase().
– Sirko
Jun 17 '17 at 17:25
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How do I check whether a checkbox is checked in jQuery?
I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery.
66 A...
Xcode suddenly stopped running project on hardware: “Could not launch xxx.app: .. No such file..” [c
...able to run my app, it started directly after I deleted it from the device and attempted to re-install by rerunning it in Xcode (something I've done hundreds of times before).
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