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With bash, how can I pipe standard error into another process?
...tandard error and output as opposed to just stderr, but it's nice to know. Time to start looking at bash 4, I think.
– paxdiablo
Oct 2 '09 at 7:11
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How do I debug an MPI program?
...race and filter the values of variables and expressions over processes and time:
It's widely used amongst top500 HPC sites, such as ORNL, NCSA, LLNL, Jülich et. al.
The interface is pretty snappy; we timed stepping and merging the stacks and variables of 220,000 processes at 0.1s as part of the...
Git blame — prior commits?
...you get a complete history, without having to re-enter the command several times with different hashes?
– Anders Zommarin
Feb 23 '11 at 22:59
13
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Difference between acceptance test and functional test?
... for maximum code coverage. We use any test environment we can grab at the time, it doesn't have to be "production" caliber, so long as it's usable.
acceptance testing: This is a validation activity; did we build the right thing? Is this what the customer really needs?
This is usually done in coo...
How do you create a read-only user in PostgreSQL?
... manipulations wouldn't do. It personally took me a considerable amount of time to figure it out by my own. Hope this helps someone.
– Anass
Jun 10 '16 at 0:13
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How can I get the ID of an element using jQuery?
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It amazes me each time that jQuery does not have a shortcut for this like $('#test').id().
– awe
Apr 2 '14 at 16:33
5
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Iterate a list with indexes in Python
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sometimes people ask a question related to the one they really want, other times, they are somewhat indiscriminate about what "best" means.
– msw
Jun 7 '12 at 10:25
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How to avoid mysql 'Deadlock found when trying to get lock; try restarting transaction'
...key(2);
connection 2: locks key(2), locks key(1);
If both run at the same time, connection 1 will lock key(1), connection 2 will lock key(2) and each connection will wait for the other to release the key -> deadlock.
Now, if you changed your queries such that the connections would lock the keys ...
Load and execution sequence of a web page?
...ly rendered and requests for all assets in the page are either resolved or time out does JavaScript execute from the onload event. IE7, and I am not sure about IE8, does not time out assets quickly if an HTTP response is not received from the asset request. This means an asset requested by JavaScr...
Controlling number of decimal digits in print output in R
...mal_length)
## -876.54321
We can change the decimal_length based on each time query, so it can satisfy different decimal printing requirement.
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