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Shell command to tar directory excluding certain files/folders
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27 Answers
27
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Removing multiple files from a Git repo that have already been deleted from disk
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29 Answers
29
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Python extending with - using super() Python 3 vs Python 2
...super() -> same as super(__class__, self)
so that would be the Python 2 equivalent for new-style classes:
super(CurrentClass, self)
for old-style classes you can always use:
class Classname(OldStyleParent):
def __init__(self, *args, **kwargs):
OldStyleParent.__init__(self, *args...
Favicon not showing up in Google Chrome [duplicate]
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236
Cache
Clear your cache. http://support.google.com/chrome/bin/answer.py?hl=en&answer=95582...
Bootstrap 3 breakpoints and media queries
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208
Bootstrap 4 Media Queries
// Extra small devices (portrait phones, less than 576px)
// No med...
Reason for Column is invalid in the select list because it is not contained in either an aggregate f
...pose I have the following table T:
a b
--------
1 abc
1 def
1 ghi
2 jkl
2 mno
2 pqr
And I do the following query:
SELECT a, b
FROM T
GROUP BY a
The output should have two rows, one row where a=1 and a second row where a=2.
But what should the value of b show on each of these two...
Why is it slower to iterate over a small string than a small list?
... closer to 70% (or more) once a lot of the overhead is removed, for Python 2.
Object creation is not at fault. Neither method creates a new object, as one-character strings are cached.
The difference is unobvious, but is likely created from a greater number of checks on string indexing, with regards...
Getting pids from ps -ef |grep keyword
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234
You can use pgrep as long as you include the -f options. That makes pgrep match keywords in th...
Check if a value is within a range of numbers
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221
You're asking a question about numeric comparisons, so regular expressions really have nothing...