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How to mkdir only if a directory does not already exist?
I am writing a shell script to run under the KornShell (ksh) on AIX. I would like to use the mkdir command to create a directory. But the directory may already exist, in which case I do not want to do anything. So I want to either test to see that the directory does not exist, or suppress the "Fil...
Listing all extras of an Intent
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edited Oct 30 '19 at 12:57
Sean McManus
8611 silver badge66 bronze badges
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.gitignore file, where should I put it in my xcode project?
I want git to ignore my UserInterfaceState.xcuserstate file in my XCode4 project, but where should I put the .gitignore file?, is it inside the .git folder? or out? The .git is in same folder with the ProjectName.xcodeproj file
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Regular expression to match URLs in Java
I use RegexBuddy while working with regular expressions. From its library I copied the regular expression to match URLs. I tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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How to find all combinations of coins when given some dollar value
I found a piece of code that I was writing for interview prep few months ago.
35 Answers
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What is the advantage of using Restangular over ngResource?
ngResource already seems really simple to implement things with...
5 Answers
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How to fix “ImportError: No module named …” error in Python?
...r the directory that the script is in. Add /home/bodacydo/work/project to either sys.path or $PYTHONPATH.
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The import org.junit cannot be resolved
...lve a java problem for an interview, and they have sent me the test class. It starts with
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PHP: How to remove specific element from an array?
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Use array_search to get the key and remove it with unset if found:
if (($key = array_search('strawberry', $array)) !== false) {
unset($array[$key]);
}
array_search returns false (null until PHP 4.2.0) if no item has been found.
And if there can be multiple ite...
Rails and PostgreSQL: Role postgres does not exist
...ing to a different port. Or, more likely, on a different machine.
Could it be that the message comes, in fact, from the remote server?
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