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Create new tmux session from inside a tmux session
I'm writing a shell script that creates / attaches or switches to a given session, depending on whether one is inside tmux and the session exists.
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Images can't contain alpha channels or transparencies
Apple has released new version of iTunes Connect & I got an error message when I tried to set Screenshots on itunes connect for my app.
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How do I do a case-insensitive string comparison?
How can I do case insensitive string comparison in Python?
9 Answers
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filter for complete cases in data.frame using dplyr (case-wise deletion)
Is it possible to filter a data.frame for complete cases using dplyr? complete.cases with a list of all variables works, of course. But that is a) verbose when there are a lot of variables and b) impossible when the variable names are not known (e.g. in a function that processes any data.frame).
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Why does the use of 'new' cause memory leaks?
I learned C# first, and now I'm starting with C++. As I understand, operator new in C++ is not similar to the one in C#.
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Where do “pure virtual function call” crashes come from?
I sometimes notice programs that crash on my computer with the error: "pure virtual function call".
8 Answers
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C++ IDE for Linux? [closed]
I want to expand my programming horizons to Linux. A good, dependable basic toolset is important, and what is more basic than an IDE?
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Is there an Eclipse line-width marker?
... But what I really want is a vertical line to be drawn in the editor showing where the max line width while I am typing, not just when I run the formmater. I know this feature is available in some capacity because it is displayed in the code formatter property page.
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The way to check a HDFS directory's size?
...s [directory]
Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0:
hdfs dfs -du [-s] [-h] URI [URI …]
You can also run hadoop fs -help for more info and specifics.
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Checking if a SQL Server login already exists
I need to check if a specific login already exists on the SQL Server, and if it doesn't, then I need to add it.
10 Answers
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