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  • Is there an established convention for separating Windows file names in a string?

    - by Heinzi
    I have a function which needs to output a string containing a list of file paths. I can choose the separation character but I cannot change the data type (e.g. I cannot return a List<string> or something like that). Wanting to use some well-established convention, my first intuition was to use the semicolon, similar to what Windows's PATH and Java's CLASSPATH (on Windows) environment variables do: C:\somedir\somefile.txt;C:\someotherdir\someotherfile.txt However, I was surprised to notice that ; is a valid character in an NTFS file name. So, is the established best practice to just ignore this fact (i.e. "no sane person should use ; in a file name and if they do, it's their own fault") or is there some other established character for separating Windows paths or files? (The pipe (|) might be a good choice, but I have not seen it used anywhere yet for this purpose.)

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  • How can I open an .xps file in Evince?

    - by Jakob
    On projects.gnome.org I read that evince/Document Viewer supports xps-files. But when I try to open an xps-file I get the error message Unable to open documentFile type Zip archive (application/zip) is not supported Reading "the full list of supported document formats" on live.gnome.org I can't find xps there. Now I ask myself (and you): Isn't Document Viewer able to open xps-files, or is there something wrong with that xps-file I try to open? I specifically want to do this with Ubuntu 11.10 Oneiric. The PPA ppa:medigeek/evince-xps has no solution for 11.10, and the xpstopdf utility mixes up the letters from my xps file totally - the new pdf then isn't usable. I want to see a solution for Evince or Gnome in general, not get a recommendation for a KDE application like here.

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  • Java multiple connections downloading file

    - by weulerjunior
    Hello friends, I was wanting to add multiple connections in the code below to be able to download files faster. Could someone help me? Thanks in advance. public void run() { RandomAccessFile file = null; InputStream stream = null; try { // Open connection to URL. HttpURLConnection connection = (HttpURLConnection) url.openConnection(); // Specify what portion of file to download. connection.setRequestProperty("Range", "bytes=" + downloaded + "-"); // Connect to server. connection.connect(); // Make sure response code is in the 200 range. if (connection.getResponseCode() / 100 != 2) { error(); } // Check for valid content length. int contentLength = connection.getContentLength(); if (contentLength < 1) { error(); } /* Set the size for this download if it hasn't been already set. */ if (size == -1) { size = contentLength; stateChanged(); } // Open file and seek to the end of it. file = new RandomAccessFile("C:\\"+getFileName(url), "rw"); file.seek(downloaded); stream = connection.getInputStream(); while (status == DOWNLOADING) { /* Size buffer according to how much of the file is left to download. */ byte buffer[]; if (size - downloaded > MAX_BUFFER_SIZE) { buffer = new byte[MAX_BUFFER_SIZE]; } else { buffer = new byte[size - downloaded]; } // Read from server into buffer. int read = stream.read(buffer); if (read == -1) { break; } // Write buffer to file. file.write(buffer, 0, read); downloaded += read; stateChanged(); } /* Change status to complete if this point was reached because downloading has finished. */ if (status == DOWNLOADING) { status = COMPLETE; stateChanged(); } } catch (Exception e) { error(); } finally { // Close file. if (file != null) { try { file.close(); } catch (Exception e) { } } // Close connection to server. if (stream != null) { try { stream.close(); } catch (Exception e) { } } } }

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  • .NET Process.Start() on an executable on a remote system - security warning?

    - by BrettRobi
    I've created a Windows Service that accepts commands from remote machines via WCF. One of those commands is to run a specified executable (let's ignore the security implications of such functionality). In my Service I am using Process.Start() to run the executable. All works well if the executable is local to the machine, but if it is on a remote file share it is failing with no error (or more accurately just hanging). I suspect the problem is that it is triggering the standard Windows 'Unverified Publisher' warning that one would see if they double click an exe on a remote system. Is there any way I can bypass this from my service so that I can truly run any executable? As I said I understand the security implications of allowing it to run any executable, but this is really what I need. I would have thought this warning was only a user mode concept, but it really does seem to be getting in the way of my Service. Ideas?

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  • File sizing issue in DOS/FAT

    - by Heather
    I've been tasked with writing a data collection program for a Unitech HT630, which runs a proprietary DOS operating system that can run executables compiled for 16-bit MS DOS with some restrictions. I'm using the Digital Mars C/C++ compiler, which is working well thus far. One of the application requirements is that the data file must be human-readable plain text, meaning the file can be imported into Excel or opened by Notepad. I'm using a variable length record format much like CSV that I've successfully implemented using the C standard library file I/O functions. When saving a record, I have to calculate whether the updated record is larger or smaller than the version of the record currently in the data file. If larger, I first shift all records immediately after the current record forward by the size difference calculated before saving the updated record. EOF is extended automatically by the OS to accommodate the extra data. If smaller, I shift all records backwards by my calculated offset. This is working well, however I have found no way to modify the EOF marker or file size to ignore the data after the end of the last record. Most of the time records will grow in size because the data collection program will be filling some of the empty fields with data when saving a record. Records will only shrink in size when a correction is made on an existing entry, or on a normal record save if the descriptive data in the record is longer than what the program reads in memory. In the situation of a shrinking record, after the last record in the file I'm left with whatever data was sitting there before the shift. I have been writing an EOF delimiter into the file after a "shrinking record save" to signal where the end of my records are and space-filling the remaining data, but then I no longer have a clean file until a "growing record save" extends the size of the file over the space-filled area. The truncate() function in unistd.h does not work (I'm now thinking this is for *nix flavors only?). One proposed solution I've seen involves creating a second file and writing all the data you wish to save into that file, and then deleting the original. Since I only have 4MB worth of disk space to use, this works if the file size is less than 2MB minus the size of my program executable and configuration files, but would fail otherwise. It is very likely that when this goes into production, users would end up with a file exceeding 2MB in size. I've looked at Ralph Brown's Interrupt List and the interrupt reference in IBM PC Assembly Language and Programming and I can't seem to find anything to update the file size or similar. Is reducing a file's size without creating a second file even possible in DOS?

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  • Silverlight file upload - file is in use by another process (Excel, Word)

    - by walkor
    Hi, all. I have a problem with uploading of the file in Silverlight application. Here is a code sample. In case when this file is opened in other application (excel or word for example) it fails to open it, otherwise it's working fine. I'm using OpenFileDialog to choose the file and pass it to this function. private byte[] GetFileContent(FileInfo file) { var result = new byte[] {}; try { using (var fs = file.OpenRead()) { result = new byte[file.Length]; fs.Read(result, 0, (int)file.Length); } } catch (Exception e) { // File is in use } return result; } Is there any way i can access this file or should i just notify the user that the file is locked?

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  • Is it possible to save output from a command to a file after the command already has been executed?

    - by NES
    Does an elegant way exist to save the output of a command to a file after the command has been run, with the terminal window is open? I mean once the command has been executed in the terminal. The output is still there in terminal. Now i could copy & paste all the lines and save it to a file. But perhaps does a method exist to somehow write the output buffer of a terminal window to a file or even better the output of an already executed command?

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  • Implementing Qt File Dialog with a Different File System Library (boost)

    - by knight
    Hi, I am writing an application which requires me to use another file system and file engine handlers and not the qt's default ones. Basically what I want to be able to do is to use qt's file dialog but have an underlying file system handler (for example built using boost file system library) of mine handling all the operations with regards to file and directory operations within that dialog. I have already written a custom file engine which handles some of the operations but I am now stuck with Qt's file system model and the file system watcher engine, as I need to have the signals transmitted for this custom file engine. Seems like I have a daunting task ahead. Am I heading in the right direction? Is there any other simpler way that I could implement this? Can anyone give me any idea on how to proceed. I was thinking of looking into proxy models but not sure if that would work. Thanks in advance for any help.

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  • How do you Remove an Invalid Remote Branch Reference from Git?

    - by Casey
    In my current repo I have the following output: $ git branch -a * master remotes/origin/master remotes/public/master I want to delete 'remotes/public/master' from the branch list: $ git branch -d remotes/public/master error: branch 'remotes/public/master' not found. Also, the output of 'git remote' is strange, since it does not list 'public': $ git remote show origin How can I delete 'remotes/public/master' from the branch list? Update, tried the 'git push' command: $ git push public :master fatal: 'public' does not appear to be a git repository fatal: The remote end hung up unexpectedly Solution: The accepted answer had the solution at the bottom! git gc --prune=now

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  • How can I set 'Print to File' as my default printing option?

    - by edm
    At the moment when I print, my Deskjet-3050 is selected as the default printer. I would like 'Print to File' to be the default 'printer' without using cups-pdf I specifically do not want to use cups-pdf because of the way it renders text (see below). I am not entirely sure what it is doing but it seems as though it renders the text as bitmaps and embeds them in pdf (as I am not able to highlight/copy/search embedded text as I am using a standard Print to File pdf). N.B. this is not a dupe of: Can I make PDF the default for 'print to file'

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  • Android , Read in binary data and write it to file

    - by Shpongle
    Hi all , Im trying to read in image file from a server , with the code below . It keeps going into the exception. I know the correct number of bytes are being sent as I print them out when received. Im sending the image file from python like so #open the image file and read it into an object imgfile = open (marked_image, 'rb') obj = imgfile.read() #get the no of bytes in the image and convert it to a string bytes = str(len(obj)) #send the number of bytes self.conn.send( bytes + '\n') if self.conn.sendall(obj) == None: imgfile.flush() imgfile.close() print 'Image Sent' else: print 'Error' Here is the android part , this is where I'm having the problem. Any suggestions on the best way to go about receiving the image and writing it to a file ? //read the number of bytes in the image String noOfBytes = in.readLine(); Toast.makeText(this, noOfBytes, 5).show(); byte bytes [] = new byte [Integer.parseInt(noOfBytes)]; //create a file to store the retrieved image File photo = new File(Environment.getExternalStorageDirectory(), "PostKey.jpg"); DataInputStream dis = new DataInputStream(link.getInputStream()); try{ os =new FileOutputStream(photo); byte buf[]=new byte[1024]; int len; while((len=dis.read(buf))>0) os.write(buf,0,len); Toast.makeText(this, "File recieved", 5).show(); os.close(); dis.close(); }catch(IOException e){ Toast.makeText(this, "An IO Error Occured", 5).show(); } EDIT: I still cant seem to get it working. I have been at it since and the result of all my efforts have either resulted in a file that is not the full size or else the app crashing. I know the file is not corrupt before sending server side. As far as I can tell its definitely sending too as the send all method in python sends all or throws an exception in the event of an error and so far it has never thrown an exception. So the client side is messed up . I have to send the file from the server so I cant use the suggestion suggested by Brian .

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  • Is it possible to save output from a command to a file subsequent the command already has been executed?

    - by NES
    Does an elegant way exists to save the output of a command subsequent to a file as long as the terminal window is open? I mean once the command has been executed in the terminal. The output is still there in terminal. Now i could copy & paste all the lines and save it to a file. But perhaps does a method exist to somehow write the output buffer of a terminal window to a file or even better the output of an already executed command?

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  • Why doesn't jquery validation plugin's remote attribute work for me?

    - by Pandiya Chendur
    I use jquery validation plugin and the remote attribute works with emailId but not with mobileNo? var validator = $("#addform").validate({ rules: { Name: "required", MobileNo: { required: true, minlength: 10, remote: '<%=Url.Action("getClientMobNo", "Clients") %>' }, Address: "required" }, messages: { Name: "please provide a client name", MobileNo: { required: "Please provide a mobile phone no", rangelength: jQuery.format("Enter at least {0} characters"), remote: jQuery.format("This MobileNo is already in use") }, Address: "please provide client address" }, A null value is passed to my controller action.. Any suggestion... public JsonResult getClientMobNo(string mobno) { JsonResult result = new JsonResult(); string status = clirep.getClientMobNo(Convert.ToInt64(mobno)); if (status == "Mobile No already exists") { result.Data = false; } else { result.Data = true; } return result; }

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  • What file format/database format does Picasa use?

    - by Raymond
    I am trying to figure out what file format the .db file and .pmp files are. I tried using db_dump (Berkeley DB) for the .db files, but it seems that they are not Berkeley DB, or of an older version. I have no idea what the .PMP files are. Directory of C:\Users\me\AppData\Local\Google\Picasa2\db3 6/09/2010 08:07 PM 303,748 imagedata_uid64.pmp 1/18/2010 10:34 PM 4,885 imagedata_unification_lhlist.pmp 6/09/2010 10:55 PM 155,752 imagedata_width.pmp 6/09/2010 10:55 PM 1,286,346,614 previews_0.db 6/10/2010 10:06 AM 467,168 previews_index.db Any help appreciated.

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  • Business Owners - What Remote Desktop Solution Do You Use To Service Your Clients PCs?

    - by Sootah
    Howdy fellow computer geeks, I am the owner of a local computer repair business that primarily services its clients on-site. On the occasions that we do service the machines in the office we generally have one of our techs pick the computer up while they are out and about and bring it back with them. Only rarely will we require the customer to bring us the computer themselves. In order to reduce costs, be much more efficient, and potentially expand our market far beyond what would be feasible with travel required; I am looking at ways that we can service our clients remotely whenever possible. What we're in need of is a solid remote desktop application that will be incredibly easy for our customers to connect to, as well as be robust enough that we don't need the client babysitting the computer during the entire repair. Ideally I would like to use a web-based solution so that we don't have to walk the customers through installing, connecting, and configuring it over the phone. This would be unacceptable because of the level of service they are used to. Effectively we'd want them to be able to just go to a URL, enter a PIN or something, and then they are connected and ready to rumble. (Obviously the option to just email them a link that'd do all this for them would be what we'd be aiming for) Along with the ease of use factor, we would need the product to not require any further intervention on the part of the client after we have connected. Nobody is going to be happy if we have to call them every 15 minutes so they can reconnect to us every time we reboot - so auto-reconnect is an absolute must. The only product I know of right now that does any of this is LogMeIn Rescue. It allows unattended access, the applet is lightweight and installs quickly, and the customer can either enter a PIN on the site or just click a link emailed to them in order to connect. The only real downside I see to LogMeIn Rescue is that it's $120.00/month per technician. While we'd ultimately end up saving far more than that per month just in fuel costs alone, I'd like to explore any other options out there that I may not have come across. So - Are there any equally good products out there? If so what are they, why do you recommend them, how have you been utilizing them yourself, and what do they cost? Thanks in advance for your help! -Sootah

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  • How to setup Hadoop cluster so that it accepts mapreduce jobs from remote computers?

    - by drasto
    There is a computer I use for Hadoop map/reduce testing. This computer runs 4 Linux virtual machines (using Oracle virtual box). Each of them has Cloudera with Hadoop (distribution c3u4) installed and serves as a node of Hadoop cluster. One of those 4 nodes is master node running namenode and jobtracker, others are slave nodes. Normally I use this cluster from local network for testing. However when I try to access it from another network I cannot send any jobs to it. The computer running Hadoop cluster has public IP and can be reached over internet for another services. For example I am able to get HDFS (namenode) administration site and map/reduce (jobtracker) administration site (on ports 50070 and 50030 respectively) from remote network. Also it is possible to use Hue. Ports 8020 and 8021 are both allowed. What is blocking my map/reduce job submits from reaching the cluster? Is there some setting that I must change first in order to be able to submit map/reduce jobs remotely? Here is my mapred-site.xml file: <configuration> <property> <name>mapred.job.tracker</name> <value>master:8021</value> </property> <!-- Enable Hue plugins --> <property> <name>mapred.jobtracker.plugins</name> <value>org.apache.hadoop.thriftfs.ThriftJobTrackerPlugin</value> <description>Comma-separated list of jobtracker plug-ins to be activated. </description> </property> <property> <name>jobtracker.thrift.address</name> <value>0.0.0.0:9290</value> </property> </configuration> And this is in /etc/hosts file: 192.168.1.15 master 192.168.1.14 slave1 192.168.1.13 slave2 192.168.1.9 slave3

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  • robocopy transfer file and not folder

    - by Bill McKay
    I'm trying to use robocopy to tranfer a single file from one location to another but robocopy seems to think I'm always specifying a folder. Here is an example: robocopy "c:\transfer_this.txt" "z:\transferred.txt" But I get this error instead: 2009/08/11 15:21:57 ERROR 123 (0x0000007B) Accessing Source Directory c:\transfer_this.txt\ (note the '\' at the end of transfer_this.txt) But if I treat it like an entire folder: robocopy "c:\folder" "z:\folder" It works but then I have to transfer everything in the folder. How can I only transfer a single file with robocopy?

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  • Digital Asset Management, iPhoto / Aperture server... alternative

    - by Sisyphus
    Afternoon, Clients, 10 : All Apples running either Leopard or Snow Leopard Server : Snow Leopard server, (and I have a old Dell Poweredge 650 at home running Gentoo 2.6, if anybody as a Linux solution). The situation: I work in small design company with 8 people, at present we are looking to consolidate all our image files onto one location, at present we each use our preferred single user DAM solution, be it, Adobe Bridge, iPhoto/Aperture (some don't bother at all) The filetypes commonly used are .psd, .pdf, .eps, .tiff, .jpg and RAW image files. Ideally what is needed: Centralised on one server, but allows us to search via spotlight (not essential, but would be nice) Include searchable metadata information such as date, location, title Open-source or as low cost as possibly Allow simultaneous users to import files So far, I have looked at a few open source DAM, systems, such as Razuna, Gallery (not strictly DAM), ResourceSpace, Notre-DAM, while these are brilliant and open-source, they don't integrate as smoothly with the Desktop as iPhoto and aperture. For iPhoto and aperture, I have tried creating a Shared library on the server (a tad laggy), and also using a drive with no permissions, put a library and letting each client read from it, however if they want to put images onto the library only, it's only supports one user at a time writing to the library... Any ideas what could fulfill our needs? Or is it time to bite the bullet for FinalCut Server? Thanks in advance.

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  • Free-as-in-beer binary file format inspector

    - by fbrereto
    I am looking for a utility that gives me the ability to specify a binary file format and then interpret a file of bytes according to that format. (Something along the lines of the 010 Editor, but infinitely more cost-effective). Something that runs on Mac OS X would be preferred, but I'm interested to see what all is out there in general (while more of a hassle I'd be willing to run a tool on Windows if it were superior.) What's your preference?

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  • Utility to unmap a network drive when the screen saver starts

    - by JimR
    I'm looking for a way to unmap network drives when the screen saver turns on. I have a few users that share an external, encrypted drive (Samba share, not windows) and they have a requirement to disconnect the drive mapping when the local machine is idle. I'd also like it to warn them if there are open files on the mapped drive, if possible. There is also a requirement to force the password to be reentered before mapping when the machine comes back from idle. Is there a Windows setting or utility out there in the wild that meets these requirements?

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  • Remote hosts accessing AD's registry

    - by smitty user
    I have a situation here. I have an intrusion detection system and it constantly alerts me that a remote host is accessing our AD's registry remotely. Our remote hosts are mainly Windows XP and our ADs are W2K8. The remote hosts access them over SMB port 445 Is it normal for Windows hosts to access AD's remote registry? My colleagues confirmed with me that both host and AD is clean from virus with endpoint protection enabled. Thanks.

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