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Read a variable in bash with a default value
I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change.
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Read file data without saving it in Flask
...plication. I am dealing with file uploads, and basically what I want is to read the data/content of the uploaded file without saving it and then print it on the resulting page. Yes, I am assuming that the user uploads a text file always.
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Read an Excel file directly from a R script
How can I read an Excel file directly into R? Or should I first export the data to a text- or CSV file and import that file into R?
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Why is “while ( !feof (file) )” always wrong?
I've seen people trying to read files like this in a lot of posts lately:
5 Answers
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Read a zipped file as a pandas DataFrame
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If you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv methods includes this particular implementation.
df = pd.read_csv('filename.zip')
Or the long form:
df = pd.read_csv('filename.zip', compression='zip'...
Scanner vs. BufferedReader
As far I know, the two most common methods of reading character-based data from a file in Java is using Scanner or BufferedReader . I also know that the BufferedReader reads files efficiently by using a buffer to avoid physical disk operations.
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How do I read an entire file into a std::string in C++?
How do I read a file into a std::string , i.e., read the whole file at once?
15 Answers
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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
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Obviously the write to currentPos doesn't happen-before the read of it, but I don't see how that can be the issue.
currentPos = new Point(currentPos.x+1, currentPos.y+1); does a few things, including writing default values to x and y (0) and then writing their initial values in the ...
NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...tream takes too much to answer the request and NGINX thinks the upstream already failed in processing the request, so it responds with an error.
Just include and increase proxy_read_timeout in location config block.
Same thing happened to me and I used 1 hour timeout for an internal app at work:
pr...
How to load a tsv file into a Pandas DataFrame?
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Note: As of 17.0 from_csv is discouraged: use pd.read_csv instead
The documentation lists a .from_csv function that appears to do what you want:
DataFrame.from_csv('c:/~/trainSetRel3.txt', sep='\t')
If you have a header, you can pass header=0.
DataFrame.from_csv('c:/~/...