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Shell - Write variable contents to a file
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Use the echo command:
var="text to append";
destdir=/some/directory/path/filename
if [ -f "$destdir" ]
then
echo "$var" > "$destdir"
fi
The if tests that $destdir represents a file.
The > appends the text after truncating ...
How do I execute a program from Python? os.system fails due to spaces in path
...They're used more on unix where the general method for a shell to launch a command is to fork() and then exec() in the child.
– Brian
Oct 15 '08 at 11:14
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How to convert linq results to HashSet or HashedSet
...shSet<T>(
this IEnumerable<T> source,
IEqualityComparer<T> comparer = null)
{
return new HashSet<T>(source, comparer);
}
}
Note that you really do want an extension method (or at least a generic method of some form) here, because you may not ...
SQL Data Reader - handling Null column values
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227
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What's the best way to add a drop shadow to my UIView
...time size of the view changes, layoutSubviews() is called. And if we don't compensate in that place by adjusting the shadowPath to reflect the current size, we'd have a resized view but the shadow would still be the old (initial) size and either not show or peek out where it shouldn't.
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The transaction log for the database is full
...g file, I created a second log file and made it huge. Once the project is complete we then removed the extra log file.
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When is a Java method name too long? [closed]
... @S.Lott what about getLength() vs. length()? I really love to look at autocompletions after typing 'get' or 'set' - so I'd prefer convetion over conciseness in this case.
– sfussenegger
Feb 9 '10 at 17:52
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What is the difference between const and readonly in C#?
...he value at the time of a definition for a const VS readonly values can be computed dynamically but need to be assigned before the constructor exits.. after that it is frozen.
'const's are implicitly static. You use a ClassName.ConstantName notation to access them.
There is a subtle difference. Co...
Android Activity as a dialog
...sses the back button.
Note that if you are using ActionBarActivity (or AppCompat theme), you'll need to use @style/Theme.AppCompat.Dialog instead.
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