Is it possible to copy directory contents using the Java I/O and File-related APIs while preserving existing symlinks? I am working on a tool that needs to perform "directory copy" operations on a variety of UNIX flavours while preserving existing symlinks. I'd prefer to attempt this using the core Java SE libraries without resorting Ru...
how can I use wild cars like '*' when getting a list of files inside a directory in Python? for example, I want something like: os.listdir('foo/*bar*/*.txt') which would return a list of all the files ending in .txt in directories that have bar in their name inside of the foo parent directory. how can I do this? thanks. ...
I would like to save a file downloaded from the internet in iPhone. Can I use the url as the file name? If not, what transformation should I apply to the url to obtain a valid file name? I need to find the local copy of the file later using its url. Edit: Not asking where or how to write a file to disk. The question is limited to get...
I'm writing a todo list program. It keeps a file with a thing to do per line, and lets the user add or delete items. The problem is that for some reason, I end up with a lot of zero bytes at the start of the file, even though the item is correctly deleted. I'll show you a couple of screenshots to make sure I'm making myself clear. This ...
The c++ program below fails to read the file. I know using cstdio is not good practice but that what I am used to and it should work anyway. $ ls -l l.uyvy -rw-r--r-- 1 atilla atilla 614400 2010-04-24 18:11 l.uyvy $ ./a.out l.uyvy Read 0 bytes out of 614400, possibly wrong file code: #include<cstdio> int main(int argc, char* argv[...
Hi, I'm looking for a minimal way to convert mp4 file to mp3 file programmatically from Java. Ideally I also need an cutting of target file. Do Java libs support this or only 3th party ones? Like jmf, ffmpeg? Thanks! ...
If I'm writing a simple text log file from multiple processes, can they overwrite/corrupt each other's entries? (Basically, this question http://stackoverflow.com/questions/1154446/is-file-append-atomic-in-unix but for Windows/NTFS.) ...
I'm implementing an FTP-like protocol in Linux kernel 2.4 (homework), and I was under the impression that if a file is open for writing any subsequent attempt to open it by another thread should fail, until I actually tried it and discovered it goes through. How do I prevent this from happening? PS: I'm using open() to open the file....
I've been using std::istream and ostream as a polymorphic interface for random-access binary I/O in C++, but it seems suboptimal in numerous ways: 64-bit seeks are non-portable and error-prone due to streampos/streamoff limitations; currently using boost/iostreams/positioning.hpp as a workaround, but it requires vigilance Missing opera...
Is there any advantage in using file writing with overlapped IO in Windows, vs just doing the file writing in a separate thread that I create? [Edit - please note that I'm doing the file writes without system caching, ie I use the FILE_FLAG_NO_BUFFERING flag in CreateFile) ...
I'm trying to write an IXmlSerializable class that stays synced with an XML file. The XML file has the following format: <?xml version="1.0" encoding="utf-8" ?> <configuration> <logging> <logLevel>Error</logLevel> </logging> ...potentially other sections... </configuration> I have a DllConfig class for the whole XML file an...
I want to write a python code that open a text file and Replace with a word that i want send to it . May you give me an example ? Thanks . ...
In my application, if the user saves a file to a folder they don't have permissions for, File.Copy will fail. An example is saving a document to the C:\ root. Instead of denying access, I'd like to prompt the user to elevate permissions with a UAC prompt, but only for this save function (not for the entire application). Is there a way t...
I have an uploader in my web page, but some people upload files named like "compañia 15% *09.jpg" and i have problems when the filenames are like that one. I would like to found a class that returns for that example something like this: "compania1509.jpg". ...
The situation I'm in is this - there's a process that's writing to a file, sometimes the file is rather large say 400 - 500MB. I need to know when it's done writing. How can I determine this? If I look in the directory I'll see it there but it might not be done being written. Plus this needs to be done remotely - as in on the same int...
Hi All, I am performing file operations (writeToFile) which fetches the data from a xml and writes into a output file(a1.txt). I am using MS Visual C++ 2008 and in windows XP. currently i am using this method of writing to output file.. 01.ofstreamhdr OutputFile; 02./* few other stmts */ 03.hdrOutputFile.open(fileName, std::ios::o...
Hi, In C++, how can I count lines using the standard classes fstream, ifstream? Thank you, Mohammad ...
Hi, I've passed a file to a library, and the library is spitting out a FileNotFound error as shown: javax.xml.transform.TransformerException: java.io.FileNotFoundException: file:\C:\Users\Oroma\workspace\IndividualProject_JINQS\WebContent\WEB-INF\classes\presentationlayer\utility\mappings\jmt\networkModel.xml (The filename, directory ...
Hi, I need to create and export an excel file in my iPhone app. Unfortunately, excel won't read it if the line encoding is LF (the unix default when I write the file) instead of CRLF (the Windows standard)...Is there any way to write a file using CRLF line breaks? I can tell this is the issue as if I open the file in TextWrangler a...
Hey everyone, In C, is there a way to read a text file line by line without knowing how much space to allocate for it? here's an example of what I mean: fgets(line, <dynamic line size>, fileHandle); Thanks for the help! ...