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Grepping a huge file (80GB) any way to speed it up?
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Some people (not me) like grep -F more than fgrep
– Walter Tross
Jun 18 '14 at 9:21
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How to shrink/purge ibdata1 file in MySQL
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How do I get a substring of a string in Python?
...; x[2:-2]
'llo Worl'
Python calls this concept "slicing" and it works on more than just strings. Take a look here for a comprehensive introduction.
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How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
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Why can I access private variables in the copy constructor?
...t the copy constructor either - a great many operations can involve two or more instances of your class: if you're comparing, adding/multiplying/dividing, copy-constructing, cloning, assigning etc. then it's often the case that you either simply must have access to private and/or protected data in t...
Need some clarification about beta/alpha testing on the developer console
...can give reviews, can report to google play if something bad is there. One more thing, now your app appears in play store search listing.
Now there is one more thing, open testing, closed testing, pausing tracks and stage rollouts, don't get confused by these terms.
1. Open testing - It means that y...
How to redirect output to a file and stdout
...t is also directed to the given output file as of the tee command.
Furthermore, if you want to append to the log file, use tee -a as:
program [arguments...] 2>&1 | tee -a outfile
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How to debug a Flask app
... Flask? Print to the console? Flash messages to the page? Or is there a more powerful option available to figure out what's happening when something goes wrong?
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How to deal with SettingWithCopyWarning in Pandas?
...column "A" is > 5. Pandas allows you to do this in different ways, some more correct than others. For example,
df[df.A > 5]['B']
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Name: B, dtype: int64
And,
df.loc[df.A > 5, 'B']
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Name: B, dtype: int64
These return the same result, so if you are only readi...
Add x and y labels to a pandas plot
...ut by category')
ax.set_xlabel("x label")
ax.set_ylabel("y label")
Or, more succinctly: ax.set(xlabel="x label", ylabel="y label").
Alternatively, the index x-axis label is automatically set to the Index name, if it has one. so df2.index.name = 'x label' would work too.
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