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  • how to compute differences between two binaries (i.e., two executables) in linux

    - by Indranil
    In Linux is there any way to compute the differences between two binaries (i.e., two executables)? Let me be more specific: I want to know how to compute the delta (delta difference) between two versions of an executable or application or software in Linux. For example if I have to download and install only the updated part (the delta difference between the latest version and the old version) of an existing application or binary how do I do that in Linux.

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  • Some basic questions about Django, Pyjamas and Clean URLs

    - by Acidburn2k
    I am farily new to the topic, but I am trying to combine both Django and Pyjamas. What would be the smart way to combine the two? I am not asking about communication, but rather about the logical part. Should I just put all the Pyjamas generated JS in the base of the domain, say http://www.mysite.com/something and setup Django on a subdirectory, or even subdomain, so all the JSON calls will go for http://something.mysite.com/something ? As far as I understand now in such combination theres not much point to create views in Django? Is there some solution for clean urls in Pyjamas, or that should be solved on some oy,ther level? How? Is it a standard way to pass some arguments as GET parameteres in a clean url while calling a Pyjamas generated JS?

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  • Perl: Event-driven Programming

    - by Shiftbit
    Is there any POSIX signals that I could utilize in my perl program to create event-driven programming? Currently I have multi-process program that is able to cross communicate but my parent thread is only able to listen to listen at one child at a time. foreach (@threads) { sysread(${$_}{'read'}, my $line, 100); chomp($line); print "Parent hears: $line\n"; } The problem is that the parent sits in a continual wait state until it receives it a signal from the first child before it can continue on. I am relying on 'pipe' for my intercommunication. My current solution is very similar to: http://stackoverflow.com/questions/2558098/how-can-i-use-pipe-to-facilitate-interprocess-communication-in-perl If possible I would like to rely on a $SIG{...} event or any non-CPAN solution.

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  • Basic XStream Annotations

    - by jmcmahon
    Hello, I just started using XStream Annotations, and I am trying to figure out how to associate the annotations with the XStream object. From the documentation, it seems like this is the accepted method: XStream xstream = new XStream(new DomDriver()); xstream.processAnnotations(AnnotatedClass.class); My problem with this is that Eclipse isn't recognizing this as a valid method. Everything seems to be configured correctly in Eclipse because it shows me the rest of the methods that are in the XStream object. It's almost like Eclipse thinks it's an older version of xstream. I've tried running a Project Clean inside of Eclipse but that didn't fix anything. I've also tried downloading the XStream jar again which didn't help either. Versions: XStream 1.3.1, Eclipse 3.4, Java 6 Has anybody seen this strange behavior before, or have any ideas on how to fix it?

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  • GTK implementation of MessageBox

    - by Bernard
    I have been trying to implement Win32's MessageBox using GTK. The app using SDL/OpenGL, so this isn't a GTK app. I handle the initialisation (gtk_init) sort of stuff inside the MessageBox function as follows: int MessageBox(HWND hwnd, const char* text, const char* caption, UINT type){ GtkWidget *window = NULL; GtkWidget *dialog = NULL; gtk_init(&gtkArgc, &gtkArgv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(delete_event), NULL); g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL); // gcallback calls gtk_main_quit() gtk_init_add((GtkFunction)gcallback, NULL); if (type & MB_YESNO) { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_QUESTION, GTK_BUTTONS_YES_NO, text); } else { dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_INFO, GTK_BUTTONS_OK, text); } gtk_window_set_title(GTK_WINDOW(dialog), caption); gint result = gtk_dialog_run(GTK_DIALOG(dialog)); gtk_main(); gtk_widget_destroy(dialog); if (type & MB_YESNO) { switch (result) { default: case GTK_RESPONSE_DELETE_EVENT: case GTK_RESPONSE_NO: return IDNO; break; case GTK_RESPONSE_YES: return IDYES; break; } } return IDOK;} Now, I am by no means an experienced GTK programmer, and I realise that I'm probably doing something(s) horribly wrong. However, my problem is that the last dialog popped up with this function stays around until the process exits. Any ideas?

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  • Running job in the background from Perl WITHOUT waiting for return

    - by Rafael Almeida
    The Disclaimer First of all, I know this question (or close variations) have been asked a thousand times. I really spent a few hours looking in the obvious and the not-so-obvious places, but there may be something small I'm missing. The Context Let me define the problem more clearly: I'm writing a newsletter app in which I want the actual sending process to be async. As in, user clicks "send", request returns immediately and then they can check the progress in a specific page (via AJAX, for example). It's written in your traditional LAMP stack. In the particular host I'm using, PHP's exec() and system() are disabled for security reasons, but Perl's system functions (exec, system and backticks) aren't. So my workaround solution was to create a "trigger" script in Perl that calls the actual sender via the PHP CLI, and redirects to the progress page. Where I'm Stuck The very line the calls the sender is, as of now: system("php -q sender.php &"); Problem being, it's not returning immediately, but waiting for the script to finish. I want it to run in the background but the system call itself returns right away. I also tried running a similar script in my Linux terminal, and in fact the prompt doesn't show until after the script has finished, even though my test output doesn't run, indicating it's really running in the background. What I already tried Perl's exec() function - same result of system(). Changing the command to: "php -q sender.php | at now"), hoping that the "at" daemon would return and that the PHP process itself wouldn't be attached to Perl. What should I try now?

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  • Can someone help fix my vimrc config?

    - by alex
    set nohlsearch set ai set bg=dark set showmatch highlight SpecialKey ctermfg=DarkGray set listchars=tab:>-,trail:~ set list autocmd BufRead *.py set smartindent cinwords=if,elif,else,for,while,try,except,finally,def,class set tabstop=4 set shiftwidth=4 set expandtab set autoindent set smartindent syntax on set listchars=tab:>- set listchars+=trail:. set ignorecase set smartcase map <C-t><up> :tabr<cr> map <C-t><down> :tabl<cr> map <C-t><left> :tabp<cr> map <C-t><right> :tabn<cr> map <F1> <Esc> imap <F1> <Esc> set pastetoggle=<F5> This is my vimrc. I want to fix it so that it doesn't show ---- ---- when other people tab. Thank.

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  • Web service request ignores basic WSDL XML element restrictions

    - by Oliver
    Hi all, I have encountered some difficulties while trying to validate an incoming soap message to a service I have running on JBoss AS (v. 5.1.0). In my code, I have explicitly set some fields to be required, eg: public class MyClass { @XmlElement(required=true, nillable=false) private List<myOtherObjects> myList; } This requirement is also reflected in the WSDL (note the lack of minOccurs="0"): <xs:element maxOccurs="unbounded" name="myList" type="tns:myOtherObjects" /> However, when I do a test soap message that has myList set to empty or null, these restrictions are completely ignored, forcing me to validate manually within the application logic on the service. I did some searching on the Internet and found out that, on WebLogic, the validation does not seem to be enabled by default, though it can be turned on by modifying the weblogic-webservices.xml file. (http://forums.oracle.com/forums/thread.jspa?threadID=783972&tstart=115) I’m wondering if there is something similar that I have to do with JBoss AS to enable automatic validation before the soap message reaches the service. Any help would be greatly appreciated. Oliver

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  • Trying to send email attachment on HP UX using mailx through Perl isnt working

    - by CheeseConQueso
    Here's my code that is not working: print "To: "; my $to=<>; chomp $to; print "From: "; my $from=<>; chomp $from; print "Attach: "; my $attach=<>; chomp $attach; print "Subject: "; my $subject=<>; chomp $subject; print "Message: "; my $message=<>; chomp $message; my $mail_fh = \*MAIL; open $mail_fh, "uuencode $attach $attach |mailx -m -s \"$subject\" -r $from $to"; print $mail_fh $message; close($mail_fh); the mailx command works fine off the command line, but not in this perl script context. any idea what I'm missing? i suspect that this line's format/syntax: open $mail_fh, "uuencode $attach $attach |mailx -m -s \"$subject\" -r $from $to"; is the culprit

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  • Bad File descriptor

    - by Luke
    Does anyone see a problem with this, its not working saying bad file descriptor not sure why? pipe(pipefd[0]); if ((opid = fork()) == 0) { dup2(pipefd[0][1],1);/*send to output*/ close(pipefd[0][0]); close(pipefd[0][1]); execlp("ls","ls","-al",NULL); } if((cpid = fork())==0){ dup2(pipefd[0][1],0);/*read from input*/ close(pipefd[0][0]); close(pipefd[1][1]); execlp("grep","grep",".bak",NULL); } close(pipefd[0][0]); close(pipefd[0][1]);

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  • Listing all shared memory segments used by a process on AIX5.3+

    - by Frank Meerkötter
    I would like to find all shared memory segments used by a given process. I am especially interested in figuring out the shmid so i can use it in calls to shmctl(). On Solaris i would just read /proc/$PID/map to figure out that information (field pr_shmid). The contents of that file are defined by struct prmap_t in sys/procfs. AIX also has a /proc/$PID/map file. There is also a struct prmap but unfortunately it is missing the pr_shmid field. Any ideas how i can achieve this on AIX5.3+?

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  • WCF(HTTPS,UserName) calling by SilverLight

    - by Andrew Kalashnikov
    Hello colleagues. I've created wcf service with transport security over HTTPS. Also I use UserName authentication as described at http://msdn.microsoft.com/en-us/library/cc949025.aspx, so I can use my Membership,RoleProvider. When I work with this service with ASP.NET all is OK var client = new RegistratorClient(); client.ClientCredentials.UserName.UserName = ConfigurationManager.AppSettings["registratorLogin"]; client.ClientCredentials.UserName.Password = ConfigurationManager.AppSettings["registratorPassword"]; But at my SilverLight appliation I can't do the same. When I try setup credntials and call wcf I get standard browser window with username and password. When I insert it SL application works well, but this message is so annoyed. I can't use clientCredentialType="Basic" at my SL config. What should I do for silence calling my WCF. Big thanks

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  • perl issuing os command with defined variables

    - by Vinnie Biros
    I am adding functionality into my scripts so that they can use kerberos authentication to run automatically and use secure protocols when executing. I have my functionality working for shell scripts that do exactly what i want, however i am having issues porting it to perl to work within my perl scripts as i am new to perl. Here is my working shell code and trying to get the same functionality in perl: #!/bin/sh ticketFileName=`basename $0-$$` #set filename variable to name of script plus the PID krb5CacheLocation=/tmp/$ticketFileName #set ticket cache location to /tmp + script name /usr/share/centrifydc/kerberos/bin/kinit -c $krb5CacheLocation -kt /root/.ssh/someaccount.keytab someaccount #get TGT and specifiy ticket cache location on kinit export KRB5CCNAME=$krb5CacheLocation #set the KRB5CCNAME variable to tell ssh where to look What i have attempted in perl: #!/usr/bin/perl my $ticketFileName = `basename $0-$$`; my $krb5CacheLocation = '/tmp/'.$ticketFileName; `export KRB5CCNAME=$krb5CacheLocation`; `/usr/share/centrifydc/kerberos/bin/kinit -c $krb5CacheLocation -kt /root/.ssh/unixmap0000.keytab unixmap0000`; Seems it is not liking the passed variable that i am referencing in the OS command. Anyone have any ideas or suggestions?

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  • Unzipping ".xz" file with 7z and lzma

    - by neversaint
    I tried to uncompressed a "*.xz" file with both 7z and lzma. But they gave me such message: $ 7z x J_12.fq.xz 7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06 p7zip Version 4.57 (locale=C,Utf16=off,HugeFiles=on,4 CPUs) Processing archive: J_12.fq.xz Error: Can not open file as archive $ 7z x J_12.fq.xz 7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06 p7zip Version 4.57 (locale=C,Utf16=off,HugeFiles=on,4 CPUs) Processing archive: J_12.fq.xz Error: Can not open file as archive and with lzma $ lzma -d J_12.fq.xz J_12.fq.xz: unknown suffix -- unchanged

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  • grep a specific word and sum it

    - by Kimi
    I want to grep an environment variable env | grep ABC_IJK[1,2] currenlty defined variables are like this ABC_IJK1=123 ABC_IJK1_XYZ=sn123:345 ABC_IJK2=999 ABC_IJK2_XYZ=sn321:999 I only want to get only this ABC_IJK1=123 ABC_IJK2=999 get number of connections sum them(not 123 + 999) and save in N1 (this one has 2 connection) so N1=2 get number of connections sum them and save in N2 for other machine (if this have four) so N2=4 If the value is not there or the variable is not present then N1=1 for below: ABC_IJK1= ABC_IJK2=123 Then need to compare it with a MAX_CONNECTION variable Thanks

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  • Convert Chunk of Data into Tabular Format Using Perl

    - by neversaint
    I have a data that looks like this 1:SRX000566 Submitter: WoldLab Study: RNASeq expression profiling for ENCODE project(SRP000228) Sample: Human cell line GM12878(SRS000567) Instrument: Solexa 1G Genome Analyzer Total: 4 runs, 62.7M spots, 2.1G bases Run #1: SRR002055, 11373440 spots, 375323520 bases Run #2: SRR002063, 22995209 spots, 758841897 bases Run #3: SRR005091, 13934766 spots, 459847278 bases Run #4: SRR005096, 14370900 spots, 474239700 bases 2:SRX000565 Submitter: WoldLab Study: RNASeq expression profiling for ENCODE project(SRP000228) Sample: Human cell line GM12878(SRS000567) Instrument: Solexa 1G Genome Analyzer Total: 3 runs, 51.2M spots, 1.7G bases Run #1: SRR002052, 12607931 spots, 416061723 bases Run #2: SRR002054, 12880281 spots, 425049273 bases Run #3: SRR002060, 25740337 spots, 849431121 bases 3:SRX012407 Submitter: GEO Study: GSE17153: Illumina sequencing of small RNAs from C. elegans embryos(SRP001363) Sample: Caenorhabditis elegans(SRS006961) Instrument: Illumina Genome Analyzer II Total: 1 run, 3M spots, 106.8M bases Run #1: SRR029428, 2965597 spots, 106761492 bases Is there a compact way to convert them into tabular format (tab separated). Hence 1 entry/row per chunk. In these case 3 rows. I tried this but doesn't seem to work. perl -laF/\n/ -000ne"print join chr(9),@F" myfile.txt

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  • sed/awk or other: one-liner to increment a number by 1 keeping spacing characters

    - by WizardOfOdds
    EDIT: I don't know in advance at which "column" my digits are going to be and I'd like to have a one-liner. Apparently sed doesn't do arithmetic, so maybe a one-liner solution based on awk? I've got a string: (notice the spacing) eh oh 37 and I want it to become: eh oh 36 (so I want to keep the spacing) Using awk I don't find how to do it, so far I have: echo "eh oh 37" | awk '$3>=0&&$3<=99 {$3--} {print}' But this gives: eh oh 36 (the spacing characters where lost, because the field separator is ' ') Is there a way to ask awk something like "print the output using the exact same field separators as the input had"? Then I tried yet something else, using awk's sub(..,..) method: ' sub(/[0-9][0-9]/, ...) {print}' but no cigar yet: I don't know how to reference the regexp and do arithmetic on it in the second argument (which I left with '...' for now). Then I tried with sed, but got stuck after this: echo "eh oh 37" | sed -e 's/\([0-9][0-9]\)/.../' Can I do arithmetic from sed using a reference to the matching digits and have the output not modify the number of spacing characters? Note that it's related to my question concerning Emacs and how to apply this to some (big) Emacs region (using a replace region with Emacs's shell-command-on-region) but it's not an identical question: this one is specifically about how to "keep spaces" when working with awk/sed/etc.

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  • Can't get websrvmng to run in Plesk SSH terminal.

    - by JohnB
    I am following this MediaTemple KB article and stuck at the last step. When I try to run the websrvmng (using the ssh terminal in Plesk) using the code the KB references: /usr/local/psa/admin/sbin/websrvmng -v -a I receive a 'File or Directory not found' error. I am a n00b when it comes to this stuff and would really appreciate any advice/suggestions for how to get websrvmng to run. I have searched through tons of articles on it but found nothing more illuminating than the above code. I am sure I'm overlooking something simple (login as root to run? something I need to replace in the code like usr?). It is a MediaTemple DV server running CentOS 5 and as I said using Plesk. I desperately need to get this to work and I am pulling my hair out, so as I said any help would be greatly appreciated.

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  • FtpWebRequest Download File

    - by pm_2
    The following code is intended to retrieve a file via FTP. However, I'm getting an error with it. serverPath = "ftp://x.x.x.x/tmp/myfile.txt"; FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverPath); request.KeepAlive = true; request.UsePassive = true; request.UseBinary = true; request.Method = WebRequestMethods.Ftp.DownloadFile; request.Credentials = new NetworkCredential(username, password); // Read the file from the server & write to destination using (FtpWebResponse response = (FtpWebResponse)request.GetResponse()) // Error here using (Stream responseStream = response.GetResponseStream()) using (StreamReader reader = new StreamReader(responseStream)) using (StreamWriter destination = new StreamWriter(destinationFile)) { destination.Write(reader.ReadToEnd()); destination.Flush(); } The error is: The remote server returned an error: (550) File unavailable (e.g., file not found, no access) The file definately does exist on the remote machine and I am able to perform this ftp manually (i.e. I have permissions). Can anyone tell me why I might be getting this error?

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  • basic sql group by with percentage

    - by David in Dakota
    I have an issue and NO it is not homework, it's just a programmer who has been away from SQL for a long time having to solve a problem. I have the following table: create table students( studentid int identity(1,1), [name] varchar(200), [group] varchar(10), grade numeric(9,2) ) go The group is something arbitrary, assume it's the following "Group A", "Group B"... and so on. The grade is on a scale of 0 - 100. If there are 5 students in each group with grades randomly assigned, what is the best approach to getting the top 3 students (the top 80%) based on their grade? To be more concrete if I had the following: Ronald, Group A, 84.5 George H, Group A, 82.3 Bill, Group A, 92.0 George W, Group A, 45.5 Barack, Group A, 85.0 I'd get back Ronald, Bill, and Barack. I'd also need to do this over other groups.

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  • prepend to a file one liner shell?

    - by elmarco
    This is probably a complex solution. I am looking for a simple operator like "", but for prepending. I am afraid it does not exist. I'll have to do something like mv $F tmp cat header tmp $F Anything smarter? (I am not fond of tmp files)

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