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Bash empty array expansion with `set -u`
I'm writing a bash script which has set -u , and I have a problem with empty array expansion: bash appears to treat an empty array as an unset variable during expansion:
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Why do loggers recommend using a logger per class?
...u still do this, but you can do it once per class instead of once per call and eliminate a serious performance problem.
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What is the difference between partitioning and bucketing a table in Hive ?
...ten used for distributing load horizontally, this has performance benefit, and helps in organizing data in a logical fashion. Example: if we are dealing with a large employee table and often run queries with WHERE clauses that restrict the results to a particular country or department . For a faster...
What JSON library to use in Scala? [closed]
...rkson ± - Warning a nice library (built on top of Java Jackson) but now abandonware. If you are going to use this, probably follow the Scalding project's example and use the backchat.io fork
sjson - By Debasish Ghosh
lift-json - Can be used separately from the Lift project
json4s ????
§ ± - An ex...
How to set Oracle's Java as the default Java in Ubuntu?
... new version.
If you want to set JAVA_HOME environment variables globally and at system level means use should set in /etc/environment file.
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SQL- Ignore case while searching for a string
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Actually you would have to compare both UPPER and LOWER variants because some characters have different representations in upper case but the same representation in lower case. For other characters, the opposite may be true. Java mentions the Georgian alphabet specifical...
How to elegantly ignore some return values of a MATLAB function?
..., c=3
Now the key here is that if you use an variable twice in the left hand side of a multiple-expression assignment, an earlier assignment is clobbered by the later assignment:
[b,b,c]=Func3();
% yields b=2, c=3
[c,c,c]=Func3();
% yields c=3
(edit: just to check, I also verified that this te...
Listen for key press in .NET console app
... @v.oddou After the last line, simply add your Console.ReadLine() and you're set, no?
– Gaffi
Jan 16 '16 at 1:13
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What difference is there between WebClient and HTTPWebRequest classes in .NET?
What difference is there between the WebClient and the HttpWebRequest classes in .NET? They both do very similar things. In fact, why weren't they merged into one class (too many methods/variables etc may be one reason but there are other classes in .NET which breaks that rule).
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Importing variables from another file?
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from file1 import *
will import all objects and methods in file1
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