There is a createWriteStream method right below it. fs.createWriteStream(path, [options]) Returns a new WriteStream object (See Writable Stream). options is an object with the following defaults: { ‘flags’: ‘a’ , ‘encoding’: null , ‘mode’: 0666 }
There are other processes in Windows that want a piece of that file. The search indexer is an obvious candidate. Or a virus scanner. They’ll open the file for full sharing, including FILE_SHARE_DELETE, so that other processes aren’t heavily affected by them opening the file. That usually works out well, unless you create/write/delete at a … Read more
There are a number of things wrong with your code: char *readFile(char *fileName) { FILE *file; char *code = malloc(1000 * sizeof(char)); file = fopen(fileName, “r”); do { *code++ = (char)fgetc(file); } while(*code != EOF); return code; } What if the file is greater than 1,000 bytes? You are increasing code each time you read … Read more
You need something like this: public delegate void ProgressChangeDelegate(double Percentage, ref bool Cancel); public delegate void Completedelegate(); class CustomFileCopier { public CustomFileCopier(string Source, string Dest) { this.SourceFilePath = Source; this.DestFilePath = Dest; OnProgressChanged += delegate { }; OnComplete += delegate { }; } public void Copy() { byte[] buffer = new byte[1024 * 1024]; // … Read more
Is it possible to write an entire struct to a file Your question is actually writing struct instances into file. You can use fwrite function to achieve this. You need to pass the reference in first argument. sizeof each object in the second argument Number of such objects to write in 3rd argument. File pointer … Read more
I ended up writing my own simple function for this. Primitive, but gets the job done: def uniquify(path): filename, extension = os.path.splitext(path) counter = 1 while os.path.exists(path): path = filename + ” (” + str(counter) + “)” + extension counter += 1 return path
More natural approach of using FileSystemWatcher: var wh = new AutoResetEvent(false); var fsw = new FileSystemWatcher(“.”); fsw.Filter = “file-to-read”; fsw.EnableRaisingEvents = true; fsw.Changed += (s,e) => wh.Set(); var fs = new FileStream(“file-to-read”, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); using (var sr = new StreamReader(fs)) { var s = “”; while (true) { s = sr.ReadLine(); if (s != … Read more
I would iterate through sample[int].xml for example and grab the next available name that is not used by a file or directory. import os i = 0 while os.path.exists(“sample%s.xml” % i): i += 1 fh = open(“sample%s.xml” % i, “w”) …. That should give you sample0.xml initially, then sample1.xml, etc. Note that the relative file … Read more
try to ensure the parent directory exists with: file.getParentFile().mkdirs()
If you use numpy/scipy, you can use the scipy.io.savemat function: import numpy, scipy.io arr = numpy.arange(9) # 1d array of 9 numbers arr = arr.reshape((3, 3)) # 2d array of 3×3 scipy.io.savemat(‘c:/tmp/arrdata.mat’, mdict={‘arr’: arr}) Now, you can load this data into MATLAB using File -> Load Data. Select the file and the arr variable (a … Read more