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Test whether a glob has any matches in bash
...et pre-expanded into matches.
Exit status is:
1 for no-match,
0 for 'one or more matches'
stdout is a list of files matching the glob.
I think this is the best option in terms of conciseness and minimizing potential side effects.
UPDATE: Example usage requested.
if compgen -G "/tmp/someFil...
What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
...ely :) i was just pointing out that the actual source is available now. none of the other answers/etc had a link to the actual source :D
– John Gardner
Jun 3 '16 at 17:32
1
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Is there a benefit to defining a class inside another class in Python?
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You might want to do this when the "inner" class is a one-off, which will never be used outside the definition of the outer class. For example to use a metaclass, it's sometimes handy to do
class Foo(object):
class __metaclass__(type):
....
instead of defining a ...
What are the uses of “using” in C#?
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@AgnelKurian No: "error CS1044: Cannot use more than one type in a for, using, fixed, or declaration statement"
– David Sykes
Jan 23 '14 at 9:00
10
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What are best practices for validating email addresses on iOS 2.0
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Nice. Everyone forgets that NSPredicate can run regexps.
– Rog
Oct 14 '09 at 11:57
5
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How to implement common bash idioms in Python? [closed]
...ction definition stuff. This is all much, much easier in Python. This is one of the huge victories in getting rid of bash and doing it in Python.
Interaction features. This includes command history and what-not. You don't need this for writing shell scripts. This is only for human interaction,...
Creating an object: with or without `new` [duplicate]
...he latter.
Your C++ book should cover this pretty well. If you don't have one, go no further until you have bought and read, several times, one of these.
Good luck.
Your original code is broken, as it deletes a char array that it did not new. In fact, nothing newd the C-style string; it came fr...
Printing 1 to 1000 without loop or conditionals
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@dreamlax: It's just one of those things I have learned from experience over the years: use '\n' unless you really want to flush, use ++i unless you actually need the former value of i, pass by const reference unless you have a good reason not to...
Ruby, remove last N characters from a string?
...uestion's had an answer for almost nine years that worked the same as this one, with 261 upvotes at the time of writing. JP accepted that and recently switched to this, so I'd say it answered their question :) I thought I'd pop this in as a modern alternative, and hope it helps people who land here....
Objective-C categories in static library
Can you guide me how to properly link static library to iPhone project. I use static library project added to app project as direct dependency (target -> general -> direct dependencies) and all works OK, but categories. A category defined in static library is not working in app.
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