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Run cron job only if it isn't already running
... sort of watchdog for a daemon that I've created. If the daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do what I'm looking for...
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How do I delete all messages from a single queue using the CLI?
...lete all messages from a single queue using the cli?
I have the queue name and I want to clean it.
9 Answers
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Why am I getting error for apple-touch-icon-precomposed.png
...ollowing logs many times in my server logs. Why I am getting these request and how can I avoid these?
11 Answers
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Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
... Can you please explain the difference between "t.CustID == custIdToQuery" and "t.CustID.Equals(custIdToQuery)". thanks in advance
– Neel
Jan 4 '11 at 10:20
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How do I find which rpm package supplies a file I'm looking for?
... : base
Matched from:
Filename : /bin/grep
You may prefer the output and speed of the repoquery tool, available in the yum-utils package.
sudo yum install yum-utils
repoquery --whatprovides '*bin/grep'
grep-0:2.5.1-55.el5.x86_64
grep-0:2.5.1-55.el5.x86_64
repoquery can do other queries such...
How do I update Ruby Gems from behind a Proxy (ISA-NTLM)
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I wasn't able to get mine working from the command-line switch but I have been able to do it just by setting my HTTP_PROXY environment variable. (Note that case seems to be important). I have a batch file that has a line like this in it:
SET HTTP_PROXY=http://%USER%:%PAS...
How to get method parameter names?
..., 'arg2'], None, None, None)
The other results are the name of the *args and **kwargs variables, and the defaults provided. ie.
>>> def foo(a, b, c=4, *arglist, **keywords): pass
>>> inspect.getfullargspec(foo)
(['a', 'b', 'c'], 'arglist', 'keywords', (4,))
Note that some cal...
Convert Long into Integer
...s not go from Long to int directly, so
Integer i = (int) (long) theLong;
And in both situations, you might run into overflows (because a Long can store a wider range than an Integer).
Java 8 has a helper method that checks for overflow (you get an exception in that case):
Integer i = theLong == ...
JavaScript global event mechanism
...e to catch every undefined function error thrown. Is there a global error handling facility in JavaScript? The use case is catching function calls from flash that are not defined.
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What is the native keyword in Java for?
... actual implementation doesn’t have to use JNI. Certain JRE methods are handled intrinsically by the JVM. In fact, it’s not even mandatory that the implementation is actually native code. It’s just “implemented in a language other than the Java programming language”.
–...