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  • How to change password on RAR archive w/o modifying arch. files attributes (modified/created)?

    - by Larry78
    How do I change the password of an .RAR archive, without changing the date/time attributes of the files in the archive? Unfortunately you can't directly change the password of the archive with WinRAR, you have to extract the files, and then make a new archive with the new password. So the created/modified attributes of the files in the archive get changed. I know you can manually change the attributes of a file with available utilities - but there are hundreds of files in the archive, each with unique attributes, so it would take a very long time to "fix" each file before re-archiving it. I'm using WinRAR 3.51, the last free version. Windows XP Pro SP3. Update: I don't care if the output is a .RAR file or a ZIP file IZArc4.1 will convert the RAR to a ZIP, and it keeps the dates. The problem is it compresses the file - there isn't a "store" option, and setting the default to store in the main configuration doesn't effect conversions. The RAR contains uncompressed files. None of these other archiving programs will even do a conversion. A couple claim to, or try to, but the errors returned indicate a very lousy application. So far I've tried PeaZip, 7-Zip, FilZip, TugZip, SimplyZipSE, QuickZip, and WinShrink (from downloads.cnet.com). WinRAR gives the error "skipping encryped archive" when I try the conversion. It asks for the password first, and I know it's right, as I opened the archive, and I can read/view all the files in it. It works on non-encrypted files.

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  • Recursive function with for loop python

    - by user134743
    I have a question that should not be too hard but it has been bugging me for a long time. I am trying to write a function that searches in a directory that has different folders for all files that have the extension jpg and which size is bigger than 0. It then should print the sum of the size of the files that are in these categories. What I am doing right now is def myFuntion(myPath, fileSize): for myfile in glob.glob(myPath): if os.path.isdir(myFile): myFunction(myFile, fileSize) if (fnmatch.fnmatch(myFile, '*.jpg')): if (os.path.getsize(myFile) > 1): fileSize = fileSize + os.path.getsize(myFile) print "totalSize: " + str(fileSize) THis is not giving me the right result. It sums the sizes of the files of one directory but it does not keep suming the rest. For example if I have these paths C:/trial/trial1/trial11/pic.jpg C:/trial/trial1/trial11/pic1.jpg C:/trial/trial1/trial11/pic2.jpg and C:/trial/trial2/trial11/pic.jpg C:/trial/trial2/trial11/pic1.jpg C:/trial/trial2/trial11/pic2.jpg I will get the sum of the first three and the the size of the last 3 but I won´t get the size of the 6 together, if that makes sense. Thank you so much for your help!

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  • something strange about Win-XP's command shell

    - by user1762055
    I wrote the following command in windows XP's command shell and something strange happened: C:\Folder1> copy sample.txt : Because of my typing mistake, I wrote ":" instead of "D:" ... but it copied the sample.txt to somewhere I cant find! I searched my whole HDD for sample.txt but the only instance of this file is the original one which is in C:\Folder1. Do you know where ":" path actually is in Win-XP command shell? You might say ":" is current path and the file has been copied onto itself but look at this: If you run that command for the first time, this will be the result: 1 file copied. but the next time you run that command it will ask you: overwrite sample.txt? (yes/no/all) So if it were writing the file onto itself, both results would have to be the same but they aren't. Thanks in advance for your help.

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  • Requisite of file.append

    - by Jeff Strunk
    Is it possible to make salt require that a particular file was appended to as opposed to the file merely existing? It seems like I can only require a file state. The source looks like it strips out any method names from a require attribute. In the example below, I only want the foo service to run if my lines have been appended to /etc/security/limits.conf. file.append: - name: /etc/security/limits.conf - text: - root hard nofile 65535 - root soft nofile 65535 foo: service.running: - enable: True - require: - file.append: /etc/security/limits.conf

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  • How can I use django.core.files.File

    - by Jake
    The docs for django.core.files.File imply I can do this: print File(open(path)).url but the File object has no attribute 'url' However, django.db.models.fields.files.FieldFile extends File and does have all the attributes described in the docs for File, but I can't create one without giving it a model field. All I want it something that does what the docs for django.core.files.File (link above) say it does, take a python file and give it attributes like 'url' and 'path' and 'name', can anyone help? Cheers, Jake

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  • Python: How to read huge text file into memory

    - by asmaier
    I'm using Python 2.6 on a Mac Mini with 1GB RAM. I want to read in a huge text file $ ls -l links.csv; file links.csv; tail links.csv -rw-r--r-- 1 user user 469904280 30 Nov 22:42 links.csv links.csv: ASCII text, with CRLF line terminators 4757187,59883 4757187,99822 4757187,66546 4757187,638452 4757187,4627959 4757187,312826 4757187,6143 4757187,6141 4757187,3081726 4757187,58197 So each line in the file consists of a tuple of two comma separated integer values. I want to read in the whole file and sort it according to the second column. I know, that I could do the sorting without reading the whole file into memory. But I thought for a file of 500MB I should still be able to do it in memory since I have 1GB available. However when I try to read in the file, Python seems to allocate a lot more memory than is needed by the file on disk. So even with 1GB of RAM I'm not able to read in the 500MB file into memory. My Python code for reading the file and printing some information about the memory consumption is: #!/usr/bin/python # -*- coding: utf-8 -*- import sys infile=open("links.csv", "r") edges=[] count=0 #count the total number of lines in the file for line in infile: count=count+1 total=count print "Total number of lines: ",total infile.seek(0) count=0 for line in infile: edge=tuple(map(int,line.strip().split(","))) edges.append(edge) count=count+1 # for every million lines print memory consumption if count%1000000==0: print "Position: ", edge print "Read ",float(count)/float(total)*100,"%." mem=sys.getsizeof(edges) for edge in edges: mem=mem+sys.getsizeof(edge) for node in edge: mem=mem+sys.getsizeof(node) print "Memory (Bytes): ", mem The output I got was: Total number of lines: 30609720 Position: (9745, 2994) Read 3.26693612356 %. Memory (Bytes): 64348736 Position: (38857, 103574) Read 6.53387224712 %. Memory (Bytes): 128816320 Position: (83609, 63498) Read 9.80080837067 %. Memory (Bytes): 192553000 Position: (139692, 1078610) Read 13.0677444942 %. Memory (Bytes): 257873392 Position: (205067, 153705) Read 16.3346806178 %. Memory (Bytes): 320107588 Position: (283371, 253064) Read 19.6016167413 %. Memory (Bytes): 385448716 Position: (354601, 377328) Read 22.8685528649 %. Memory (Bytes): 448629828 Position: (441109, 3024112) Read 26.1354889885 %. Memory (Bytes): 512208580 Already after reading only 25% of the 500MB file, Python consumes 500MB. So it seem that storing the content of the file as a list of tuples of ints is not very memory efficient. Is there a better way to do it, so that I can read in my 500MB file into my 1GB of memory?

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  • Utility method - Pass a File or String?

    - by James P.
    Here's an example of a utility method: public static Long getFileSize(String fileString) { File file = new File(fileString); if (file == null || !file.isFile()) return null; return file.length(); } Is it a good practise to pass a String rather than a File to a method like this? In general what reasoning should be applied when making utility methods of this style?

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  • Jquery request download/open file to the user

    - by CoffeeCode
    I have a Url that returns a file. How should my jquery request looklike to download this file to the user?? the action method looks like this public FileContentResult GetFile(int Id) { if (Id == 0) return File(new byte[0], ""); Survey survey = Repository.GetItem(Id); return File(survey.File.FileContent.ToArray(), survey.File.ContentType, survey.File.Name); }

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  • How to determine the format of Excel file in Java?

    - by Samuh
    I am working on a light weight Java client library for Android mobile platform that can read and write to Excel files in .xls(BIFF) and Office 2003 XML format. No sooner we decided to start than we got stuck with a basic question. How do we determine the format of the excel files in Java? Please help. Thanks.

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  • What is a simple way to get ACID transactions with persistence on the local file system (in Java)?

    - by T.R.
    I'm working on a small (java) project where a website needs to maintain a (preferably comma-separated) list of registered e-mail addresses, nothing else, and be able to check if an address is in the list. I have no control over the hosting or the server's lack of database support. Prevayler seemed a good solution, but the website is a ghost town, with example code missing from just about everywhere it's supposed to be, so I'm a little wary. What other options are recommended for such a task?

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  • java: how to convert a file to utf8

    - by Enrique San Martín
    Hi, i have a file that have some non-utf8 caracters (like "ISO-8859-1"), and so i want to convert that file (or read) to UTF8 encoding, how i can do it? The code it's like this: File file = new File("some_file_with_non_utf8_characters.txt"); /* some code to convert the file to an utf8 file */ ... edit: Put an encoding example

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  • Is there a java library equivalent to `file` command in unix

    - by Shervin
    Is there any java libraries that is similar to unix's command file? ie: $ file somepicture.png somepicture.png PNG image, 805 x 292, 8-bit/color RGB, non-interlaced The file command is such a nice tool. I need something that can tell me if the file is really what I want it to be. (ie a picture, document etc) I know I can run the command file, but I am looking for a java library, not running the actual unix command.

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  • loading a file and getting its contents crashes on me.

    - by Richards
    private class Lytterklasse implements ActionListener{ public void actionPerformed(ActionEvent e) { JFileChooser chooser = new JFileChooser(); FileNameExtensionFilter filter = new FileNameExtensionFilter( "Sudoku Tekstfiler", "txt"); chooser.setFileFilter(filter); int returnVal = chooser.showOpenDialog(getParent()); String filnavn=chooser.getName(); In innfil=new In(filnavn); int type=innfil.inInt(); int lengdeBoks=innfil.inInt(); int breddeBoks=innfil.inInt(); for(int i=0;i } Why does this crash on me? I cant figure it out. Please help!

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  • how to remove .php from a certain file (with apache .htaccess)

    - by user2015253
    I want a certain file (only this!) to remove the php extension for calling it. BUT: It uses get parameters and they should remain! I tried it with my .htaccess and something like: RewriteEngine on followed by either RewriteRule ^file(.*)$ file.php$1 or RewriteRule ^file(.+)$ file.php$1 but it doesn't work. (First gives error 500, second gives 404) Example what I want to call in the browser: file?param=asd&foo=bar - It should call as: file.php?param=asd&foo=bar

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  • Linux Kernel - Socket file descriptor close location

    - by NTek
    Where in the linux kernel does the closing of a socket's file descriptor occur? I know for a file, the file's file descriptor is closed in fs/open.cs function sys_close(). However, for a socket file descriptor, is this the same location or somewhere else? Also, do sockets utilize the file.c alloc_fd to allocate the file descriptor or do they utilize some other function?

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