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How to get the last character of a string in a shell?
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101
That's one of the reasons why you need to quote your variables:
echo "${str:$i:1}"
Otherwise,...
What does “The APR based Apache Tomcat Native library was not found” mean?
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12 Answers
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Rename Pandas DataFrame Index
...ut with df.rename() only the column name is renamed. Bug? I'm on version 0.12.0
9 Answers
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MySQL: What's the difference between float and double?
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106
They both represent floating point numbers. A FLOAT is for single-precision, while a DOUBLE is...
ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '
I am trying to upload my build on iTunes Connect via Xcode 5.1.1 but it is continuously showing that it is loading and app is not getting uploaded. So I have tried uploading with Application Loader but its showing the below error:
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Why Maven uses JDK 1.6 but my java -version is 1.7
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edited May 28 '15 at 13:50
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answered Oct 11 '1...
SQL query return data from multiple tables
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Part 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer ...
What is /dev/null 2>&1?
... the same net effect. I usually just use > for that reason.)
2>&1 redirects standard error (2) to standard output (1), which then discards it as well since standard output has already been redirected.
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