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Check if database exists in PostgreSQL using shell
...-f1 | grep -qxF "$DB_NAME"
The -t and -A options make sure the output is raw and not "tabular" or whitespace-padded output. Columns are separated by the pipe character |, so either the cut or the grep has to recognize this. The first column contains the database name.
EDIT: grep with -x to preven...
How to remove the last character from a string?
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How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
We're seeing a number of TimeoutExceptions in GcWatcher.finalize, BinderProxy.finalize , and PlainSocketImpl.finalize . 90+% of them happen on Android 4.3. We're getting reports of this from Crittercism from users out in the field.
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What is the difference between Swing and AWT?
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Because Swing tries to do everything possible in Java other than the very raw graphics routines provided by a native GUI window, it used to incur quite a performance penalty compared to AWT. This made Swing unfortunately slow to catch on. However, this has shrunk dramatically over the last several ...
How to reposition Chrome Developer Tools
The tools are opened on the bottom of the chrome window per default. This is a rather bad choice for a wide screen display since there is plenty of empty space to the right but not much vertical space to spare. Unfortunately, I have found no way to reposition the tools. I would like to have them on ...
Persist javascript variables across pages? [duplicate]
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What is the difference between XML and XSD?
...a reasonable thing to ask them for an actual sample request which would be raw XML with <QuoteResultID> etc etc.
– James Wilson
Jun 7 '16 at 13:45
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iPhone Simulator suddenly started running very slow
...number of weeks and it has been running well up until now, but all of a sudden has begun running very slow both when loading content and animations. I have not made any changes to my code since I last tested it successfully.
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Finding index of character in Swift String
...hat also applies to positions. The _position is probably an index into the raw array of bytes and they don't want to expose that. The String.Index is meant to protect us from accessing bytes in the middle of characters.
That means that any index you get must be created from String.startIndex or Str...