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OS X: equivalent of Linux's wget
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edited Sep 3 '17 at 20:05
Mark Amery
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How to find common elements from multiple vectors?
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– Montgomery Clift
Oct 3 '19 at 8:05
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Understanding the map function
...your function should look for None and handle them, otherwise you will get errors. In Python 3 map() will stop after finishing with the shortest list. Also, in Python 3, map() returns an iterator, not a list.
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Search for executable files using find command
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Error find: invalid mode ‘+111’ on findutils 4.5.11 4.fc20.
– sourcejedi
Jul 17 '14 at 10:31
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DISTINCT for only one column
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If you are using SQL Server 2005 or above use this:
SELECT *
FROM (
SELECT ID,
Email,
ProductName,
ProductModel,
ROW_NUMBER() OVER(PARTI...
How to check version of python modules?
...nt call last):
File "<string>", line 1, in <module>
AttributeError: 'module' object has no attribute '__version__'
Lastly, as the commands in your question are prefixed with sudo, it appears you're installing to the global python environment. Strongly advise to take look into python ...
Reading a file line by line in Go
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From the same docs.. "If ReadString encounters an error before finding a delimiter, it returns the data read before the error and the error itself (often io.EOF)." So you can just check for io.EOF error and know your are done.
– eduncan911
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Set every cell in matrix to 0 if that row or column contains a 0
... row and column are both 1s.
Coding it will be tricky to avoid off-by-one errors etc but it should work in one pass.
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How do I count the number of occurrences of a char in a String?
...ore 0.010 better then 0.351):
Benchmark Mode Cnt Score Error Units
1. countMatches avgt 5 0.010 ± 0.001 us/op
2. countOccurrencesOf avgt 5 0.010 ± 0.001 us/op
3. stringTokenizer avgt 5 0.028 ± 0.002 us/op
4. java8_1 avgt 5 0.077 ...
Select unique or distinct values from a list in UNIX shell script
...s too.
– Mingye Wang
Dec 9 '15 at 5:05
I figured out that uniq seams to process only adjacent lines (at least by defau...