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What is the $? (dollar question mark) variable in shell scripting? [duplicate]

... 264 $? is used to find the return value of the last executed command. Try the following in the she...
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Generate Java classes from .XSD files…?

... 121 JAXB does EXACTLY what you want. It's built into the JRE/JDK starting at 1.6 ...
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How to delete multiple buffers in Vim?

...d then hit <C-a>, vim will complete the command to :bd file1.xml file2.xml file3.xml. share | improve this answer | follow | ...
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Timing a command's execution in PowerShell

... | edited Apr 20 at 22:30 Oliver 7,83977 gold badges6363 silver badges9090 bronze badges ans...
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Running code in main thread from another thread

...ei has gotten almost as much attention as the original answer. So here are 2 possible solutions: 1. If your background thread has a reference to a Context object: Make sure that your background worker threads have access to a Context object (can be the Application context or the Service context). ...
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How to concatenate string variables in Bash

... | edited Sep 1 '19 at 12:51 Potherca 9,52944 gold badges5353 silver badges7575 bronze badges answered...
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Class method decorator with self arguments?

... 219 Yes. Instead of passing in the instance attribute at class definition time, check it at runtim...
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Spring Cache @Cacheable - not working while calling from another method of the same bean

... | edited Jan 4 '16 at 12:19 Xtreme Biker 26.8k1212 gold badges114114 silver badges187187 bronze badges ...
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Changing API level Android Studio

I want to change the minimum SDK version in Android Studio from API 12 to API 14. I have tried changing it in the manifest file, i.e., ...
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vim command to restructure/force text to 80 columns

... jpaugh 5,44044 gold badges3232 silver badges7979 bronze badges answered Jun 13 '10 at 18:47 Michael MadsenMichael Madsen ...