Tagged Questions

File I/O is input/output that involves the file system. This could include performing operations on directories and files, such as creation and deletion, reading files, and writing output to files.

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How to write contents of linked list into text file for more than one line?

Since my last visit here,I have made few changes in the code,implemented a tree to give users choice,seperated some codes into method and then into different files.I am now running the main program ...
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2answers
37 views

Large file deleting multiple lines in Perl

I have a large file I want to remove multiple lines from using Perl, so slurping is not an option. Its a spice file is something like this: X1 param param param +param param param +param param param ...
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0answers
16 views

Iterating a DirectoryStream and changing contents of a directory at the same time

The documentation of DirectoryStream clearly states: The iterator is weakly consistent. It is thread safe but does not freeze the directory while iterating, so it may (or may not) reflect ...
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3answers
22 views

Hide html input element until javascript loads

I have a form input (type='file') that I'm styling using this JQuery plugin. Basically it overlies a new span over the input element as a mask of sorts and boxes it all up in a div. The issue is ...
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2answers
33 views

perl read same line from two files

I want to add up the value of corresponding lines from two files. Is there a way to specify the input file line number for both files and finish that in one loop? (of course you can read in one file ...
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2answers
59 views

c++ i/o prob when appending file

I'm trying to write an object to a file. When I run it once, it works perfectly -- as the file is empty --, but when I try to run it a second time, the program crashes after taking nothing from the ...
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9 views

How to write zero in Octave with dlmwrite() in .csv file

I have a matrix that I want to save in .csv file, in Octave. Matrix is 28000x2. The second column has zero values. I save matrix with following code: dlmwrite("pred_nn.csv", N, ","); So each row ...
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1answer
29 views

Run a SQL file on .MDF file using C#

I have got a .MDF file at specific location on which I want to run .sql file. I am using following code but it doesn't do it very well. it always gives me error that failed to connect to the server ...
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4answers
57 views

Reading space separated values file in c++ error

I am trying to get float values out of a file to use them in my program. I used the following forum to construct the program C++: Read file line by line. But the values obtained by doing so appear to ...
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0answers
18 views

Tornado non-blocking file I/O

Currently I am using tornado to build a web application for sharing images. After one image is received, I need to write it to the file system. 1. If I open one thread to save one image, lots of ...
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24 views

Tapestry - Writing a file to webapp directory

I'm trying to write out some xml to a file within a subdirectory of the webapp. Let's say for this case the directory is: C:\Tapestry\xyz\src\main\webapp\directory1\ How can I get the part of the ...
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1answer
52 views

Files in python are empty for no reason

I have tried to split up my world generation from my actual game, since I usually fail with it. But for some reason it keeps insisting the file is empty/ the variable gained from it is empty, and ...
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7answers
47 views

Counting the Words in a String from a file

I have a small console application that I am working on, and it returns several 0's instead of the actual count of words. I have also noticed in some regards that my logic will be flawed since I am ...
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2answers
44 views

Understanding flash file system wear in append mode

I have to write to an ever-growing log file on a flash device (MMC card), and I'm concerned about flash wear. Let's say I use fopen or std::ofsteam::open to open a log file in write/append mode. That ...
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vote
1answer
25 views

Is it possible to force case-sensitivity in MATLAB for file operations like LOAD?

MATLAB is case-sensitive for calling functions, even on Windows: >> edit Untitled >> untitled Cannot find an exact (case-sensitive) match for 'untitled' Is there a way to enforce case ...

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