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Change IPython/Jupyter notebook working directory
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31 Answers
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How do you loop in a Windows batch file?
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130
FOR %%A IN (list) DO command parameters
list is a list of any elements, separated by eith...
How to find which rspec test is taking so long
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1 Answer
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What are the ways to make an html link open a folder
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108
Do you want to open a shared folder in Windows Explorer? You need to use a file: link, but the...
ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'
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How do I extract the contents of an rpm?
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How to use Greek symbols in ggplot2?
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152
Here is a link to an excellent wiki that explains how to put greek symbols in ggplot2. In summ...
SQL multiple column ordering
...ng to sort by multiple columns in SQL, and in different directions. column1 would be sorted descending, and column2 ascending.
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onCreateOptionsMenu inside Fragments
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501
try this,
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inf...
How to determine CPU and memory consumption from inside a process?
...= now;
lastUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
Linux
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the ker...