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• With Go, how to append unknown number of byte into a vector and get a slice of bytes?

  - by Stephen Hsu

  I'm trying to encode a large number to a list of bytes(uint8 in Go). The number of bytes is unknown, so I'd like to use vector. But Go doesn't provide vector of byte, what can I do? And is it possible to get a slice of such a byte vector? I intends to implement data compression. Instead of store small and large number with the same number of bytes, I'm implements a variable bytes that uses less bytes with small number and more bytes with large number. My code can not compile, invalid type assertion: 1 package main 2 3 import ( 4 //"fmt" 5 "container/vector" 6 ) 7 8 func vbEncodeNumber(n uint) []byte{ 9 bytes := new(vector.Vector) 10 for { 11 bytes.Push(n % 128) 12 if n < 128 { 13 break 14 } 15 n /= 128 16 } 17 bytes.Set(bytes.Len()-1, bytes.Last().(byte)+byte(128)) 18 return bytes.Data().([]byte) // <- 19 } 20 21 func main() { vbEncodeNumber(10000) } I wish to writes a lot of such code into binary file, so I wish the func can return byte array. I haven't find a code example on vector.

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• How do I hook up a custom tab bar build in IB to a UINavigationController Object instanced in XCODE?

  - by David Hsu

  What I did to create the custom NAV BAR: 1. Created an empty XIB and added a view with class UINavigationController. 2. Under the view I added the navigation bar and a left and right button onto the nav bar. 3. Control drag from "File Owner" to "View" Inside my class where I call the modal view navigation controller: SignupViewController *addController = [[SignupViewController alloc] initWithNibName:@"SignupViewController" bundle:nil]; // Create the navigation controller and present it modally. UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addController]; navigationController.navigationBar = ///WHAT SHOULD GO HERE? [self presentModalViewController:navigationController animated:YES]; Thank in advance!

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• Best practices for resending to hard bounced emails after X days

  - by Vivian Hsu

  If I see an email returned due to a hard bounce, after how many days is it acceptable to resend to that email address. It is possible for emails to be reactivated or for temporary outages, so it doesn't make sense to keep an email in my hard bounce email list forever. I've already seen cases where I receive emails from addresses that were put in my hard bounce email list months ago. Any recommendations? Are there specific recommendations from ISPs?

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• How to implement a simple queue properly?

  - by Stephen Hsu

  The current Go library doesn't provide the queue container. To implement a simple queue, I use circle array as the underlying data structure. It follows algorithms mentioned in TAOCP: Insert Y into queue X: X[R]<-Y; R<-(R+1)%M; if R=F then OVERFLOW. Delete Y from queue X: if F=R then UNDERFLOW; Y<-X[F]; F<-(F+1) % M. F: Front, R: Rear, M: Array length. Following is the code: package main import ( "fmt" ) type Queue struct { len int head, tail int q []int } func New(n int) *Queue { return &Queue{n, 0, 0, make([]int, n)} } func (p *Queue) Enqueue(x int) bool { p.q[p.tail] = x p.tail = (p.tail + 1) % p.len return p.head != p.tail } func (p *Queue) Dequeue() (int, bool) { if p.head == p.tail { return 0, false } x := p.q[p.head] p.head = (p.head + 1) % p.len return x, true } func main() { q := New(10) for i := 1; i < 13; i++ { fmt.Println(i, q.Enqueue(i)) } fmt.Println() for i := 1; i < 13; i++ { fmt.Println(q.Dequeue()) } } But the output is obviously wrong: 1 true 2 true 3 true 4 true 5 true 6 true 7 true 8 true 9 true 10 false 11 true 12 true 11 true 12 true 0 false 0 false 0 false 0 false 0 false 0 false 0 false 0 false 0 false 0 false I think I need one more field to make the code work properly. What do you suggest?

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• Looking for Go equivalent of scanf.

  - by Stephen Hsu

  I'm looking for the Go equivalent of scanf(). I tried with following code: 1 package main 2 3 import ( 4 "scanner" 5 "os" 6 "fmt" 7 ) 8 9 func main() { 10 var s scanner.Scanner 11 s.Init(os.Stdin) 12 s.Mode = scanner.ScanInts 13 tok := s.Scan() 14 for tok != scanner.EOF { 15 fmt.Printf("%d ", tok) 16 tok = s.Scan() 17 } 18 fmt.Println() 19 } I run it with input from a text with a line of integers. But it always output -3 -3 ... And how to scan a line composed of a string and some integers? Changing the mode whenever encounter a new data type? The Package documentation: Package scanner A general-purpose scanner for UTF-8 encoded text. But it seems that the scanner is not for general use. Updated code: func main() { n := scanf() fmt.Println(n) fmt.Println(len(n)) } func scanf() []int { nums := new(vector.IntVector) reader := bufio.NewReader(os.Stdin) str, err := reader.ReadString('\n') for err != os.EOF { fields := strings.Fields(str) for _, f := range fields { i, _ := strconv.Atoi(f) nums.Push(i) } str, err = reader.ReadString('\n') } r := make([]int, nums.Len()) for i := 0; i < nums.Len(); i++ { r[i] = nums.At(i) } return r }

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• To use package properly, how to arrange directory, file name, unit test file?

  - by Stephen Hsu

  My source files tree is like this: /src /pkg /foo foo.go foo_test.go Inside foo.go: package foo func bar(n int) { ... } inside foo_test.go: package foo func testBar(t *testing.T) { bar(10) ... } My questions are: Does package name relates to directory name, source file name? If there is only one source file for a package, need I put it in a directory? Should I put foo.go and foo_test.go in the same package? In the foo_test.go, as it's in the same package as foo.go, I didn't import foo. But when I compile foo_test.go with 6g, it says bar() is undefined. What should I do?

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• How to decrease width of table view cells for iphone

  - by David Hsu

  I'm trying to create a grouped table view with two sections. For the first section I would like the width to be only half the screen. For the second section it would be the standard width. Also, next to the first section I would like to put a button. How is this done? Thanks!

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• Jack Audio ubuntu 12.10

  - by Shaneo1

  I used to have Jack Server working with 10.10, 11.04, 11.10 but not 12.04 and now 12.10. I have installed jackd jackd2 qjackctl surfed many forums and even given advice of how to get jack working, but now I am stuck. Tue Nov 27 22:30:46 2012: Saving settings to "/home/shane/.config/jack/conf.xml" ... 22:31:19.960 D-BUS: JACK server could not be started. Sorry Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started Tue Nov 27 22:31:19 2012: Starting jack server... Tue Nov 27 22:31:19 2012: JACK server starting in realtime mode with priority 10 Tue Nov 27 22:31:19 2012: [1m[31mERROR: cannot register object path "/org/freedesktop/ReserveDevice1/Audio0": A handler is already registered for /org/freedesktop/ReserveDevice1/Audio0[0m Tue Nov 27 22:31:19 2012: [1m[31mERROR: Failed to acquire device name : Audio0 error : A handler is already registered for /org/freedesktop/ReserveDevice1/Audio0[0m Tue Nov 27 22:31:19 2012: [1m[31mERROR: Audio device hw:0,0 cannot be acquired...[0m Tue Nov 27 22:31:19 2012: [1m[31mERROR: Cannot initialize driver[0m Tue Nov 27 22:31:19 2012: [1m[31mERROR: JackServer::Open failed with -1[0m Tue Nov 27 22:31:19 2012: [1m[31mERROR: Failed to open server[0m Tue Nov 27 22:31:21 2012: Saving settings to "/home/shane/.config/jack/conf.xml" ... 22:31:22.047 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info. Cannot connect to server socket err = No such file or directory Cannot connect to server request channel jack server is not running or cannot be started Can anyone assist?

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• Using Cisco VPN in Windows 7 XP Mode?

  - by Shane

  I previously asked a question about whether it was possible to use Cisco VPN client on Windows 7 64-bit (see below). Now that I have it set up, it doesn't work when I try to connect off the local network. I realize that there must be some networking/routing that I need to do since it's running on a virtual machine. How does one go about using the Cisco VPN client from XP mode in Windows 7? Related: Cisco VPN Client on Windows 7 64-bit?

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• Why is vCenter 5.1u1 exiting hosts from maintenance mode?

  - by Shane Madden

  This vCenter server was just upgraded to 5.1 update 1. I'm going through hosts and bringing firmware up to date, then upgrading them from various versions of 5.0 to 5.1u1. vCenter 5.1u1 seems to have an interesting new behavior: it's removing hosts from maintenance mode when they reconnect after being disconnected -- but very inconsistently, I've seen it maybe 4 or 5 times on ~25-30 host reboots. I've only seen it happen on 5.0 hosts that have not yet been upgraded to 5.1. In the image, I placed the host in maint mode and rebooted it into the HP SPP DVD's automatic update mode. After its usual ~40 minute update process, the host came back online.. and 7 seconds before even logging that the host had reconnected, vCenter had sent the host a task to exit maintenance mode. In my understanding, the only time vCenter should drop a host out of maintenance mode is when vCenter put it into maintenance mode itself (such as a VUM upgrade task). Why would this vCenter be unilaterally exiting a host from user-initiated maintenance mode? Edit, additional info: I ran the firmware upgrades on 5 more hosts, all at the same time. Two of them exited maint mode after reconnecting, three did not. The common factor of those exiting maint mode seems to be how long they were offline; the two that took a few tries to boot to the virtual media are the two that got knocked out of maint mode. esx31 (image above): 45 minutes unresponsive esx19 (exited maint): 87 minutes unresponsive esx24 (stayed in maint): 32 minutes unresponsive esx29 (stayed in maint): 39 minutes unresponsive esx32 (stayed in maint): 30 minutes unresponsive esx34 (exited maint): 70 minutes unresponsive Edit: The disconnect time idea seems to have been a red herring, as it's not happening consistently. Additionally, in the vpxd.log the exit maint mode task initiation seems to always immediately follow this vim.EnvironmentBrowser.queryProvisioningPolicy SOAP call. Here's the lines, slightly trimmed for clarity: 15:27:49.535 [info 'vpxdvpxdVmomi'] [ClientAdapterBase::InvokeOnSoap] Invoke done (esx31, vim.EnvironmentBrowser.queryProvisioningPolicy) 15:27:49.560 [info 'commonvpxLro'] [VpxLRO] -- BEGIN task -- esx31 -- HostSystem.exitMaintenanceMode -- Note that on the nodes that don't get the exit task, the vim.EnvironmentBrowser.queryProvisioningPolicy event still occurs. I'm not seeing any other differences in events before or after this in the reconnect process, aside from the extra events caused by exiting maintenance mode. Given the log's mention of provisioning policies, looking for autodeploy-related maintenance mode issues turns up complaints about similar behavior (though I'm not using autodeploy at all).

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• Windows 7 BSOD Crashes

  - by Shane Andrade

  I recently upgraded to Windows 7 64 doing a clean install from Vista 64 and ever since I keep getting random blue screen crashes. I have the feeling it's caused by my video card but everything has the most up-to-date drivers for Windows 7 64 bit. Here is the memory dump from my most recent crash: MEMORY_MANAGEMENT (1a) # Any other values for parameter 1 must be individually examined. Arguments: Arg1: 0000000000041790, The subtype of the bugcheck. Arg2: fffffa8001990b90 Arg3: 000000000000ffff Arg4: 0000000000000000 Debugging Details: ------------------ PEB is paged out (Peb.Ldr = 000007ff`fffd9018). Type ".hh dbgerr001" for details PEB is paged out (Peb.Ldr = 000007ff`fffd9018). Type ".hh dbgerr001" for details BUGCHECK_STR: 0x1a_41790 DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT PROCESS_NAME: csrss.exe CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from fffff80002cff26e to fffff80002c8cf00 STACK_TEXT: fffff880`0299ae38 fffff800`02cff26e : 00000000`0000001a 00000000`00041790 fffffa80`01990b90 00000000`0000ffff : nt!KeBugCheckEx fffff880`0299ae40 fffff800`02cc05d9 : fffffa80`00000000 00000000`01e73fff 00000000`00000000 fffff960`0023653f : nt! ?? ::FNODOBFM::`string'+0x339d6 fffff880`0299b000 fffff800`02fa2e50 : fffffa80`09140c90 0007ffff`00000000 00000000`00000000 00000000`00000000 : nt!MiRemoveMappedView+0xd9 fffff880`0299b120 fffff960`002e381b : fffff900`00000000 fffffa80`07c85d10 00000000`00000001 fffff900`c1e56cd0 : nt!MiUnmapViewOfSection+0x1b0 fffff880`0299b1e0 fffff960`002b4fc1 : 00000000`00000000 fffff900`00000000 fffff900`c1e56cd0 00000000`00000000 : win32k!SURFACE::bUnMapImmediate+0x5b fffff880`0299b210 fffff960`002b527b : fffff900`c07fdd10 fffff8a0`00000000 00000000`00000000 00000000`00000000 : win32k!bMigrateSurfaceForConversion+0x5ad fffff880`0299b340 fffff960`002dc3e3 : fffff900`00000000 fffff900`c1e5c010 00000000`00000000 00000000`00000000 : win32k!pConvertDfbSurfaceToDibInternal+0x1cb fffff880`0299b420 fffff960`002b5319 : fffffa80`07c7f470 00000000`00000001 00000000`00000000 00000000`00000282 : win32k!MulConvertChildRedirectionDfbSurfaceToDib+0x53 fffff880`0299b460 fffff960`002b1267 : fffff900`c0132010 fffff900`c0132010 00000000`00000000 00000000`00000000 : win32k!pConvertDfbSurfaceToDib+0x41 fffff880`0299b490 fffff960`002b1b1f : fffff900`c0132010 00000000`00000001 fffff900`c24cc280 fffff900`c0132010 : win32k!bDynamicRemoveAllDriverRealizations+0x4f fffff880`0299b4c0 fffff960`00273bb9 : 00000000`00000000 fffff900`00000000 fffff900`00000000 00000000`00000000 : win32k!bDynamicModeChange+0x1d7 fffff880`0299b5a0 fffff960`000baa2d : 00000000`00000000 00000000`00000000 00000000`00000000 07cd8220`00000003 : win32k!DrvInternalChangeDisplaySettings+0xc7d fffff880`0299b7e0 fffff960`001a2c41 : 00000000`00000040 fffff900`c00bf010 00000000`00000000 07cd8220`00000003 : win32k!DrvChangeDisplaySettings+0x62d fffff880`0299b9c0 fffff960`001a2e9e : fffffa80`07cd8220 00000000`00000000 00000000`00000000 fffff800`02f6fec3 : win32k!xxxInternalUserChangeDisplaySettings+0x329 fffff880`0299ba80 fffff960`001a033a : 00000000`00000000 00000000`00000000 00998b21`81a100b6 00000000`00000040 : win32k!xxxUserChangeDisplaySettings+0x92 fffff880`0299bb70 fffff960`001a053a : 00000000`00000000 00000000`00000001 00000000`00000000 00000000`00000000 : win32k!xxxRemoteSetDisconnectDisplayMode+0x42 fffff880`0299bbb0 fffff960`00183ea6 : 00000000`00000000 fffffa80`06efeb60 fffff880`0299bca0 00000000`00000005 : win32k!xxxRemoteDisconnect+0x1c2 fffff880`0299bbf0 fffff800`02c8c153 : fffffa80`06efeb60 00000000`00000005 00000000`00000020 00000000`00000000 : win32k!NtUserCallNoParam+0x36 fffff880`0299bc20 000007fe`fd6b3d3a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13 00000000`027cf798 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7fe`fd6b3d3a STACK_COMMAND: kb FOLLOWUP_IP: win32k!SURFACE::bUnMapImmediate+5b fffff960`002e381b f6477401 test byte ptr [rdi+74h],1 SYMBOL_STACK_INDEX: 4 SYMBOL_NAME: win32k!SURFACE::bUnMapImmediate+5b FOLLOWUP_NAME: MachineOwner MODULE_NAME: win32k IMAGE_NAME: win32k.sys DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc5e0 FAILURE_BUCKET_ID: X64_0x1a_41790_win32k!SURFACE::bUnMapImmediate+5b BUCKET_ID: X64_0x1a_41790_win32k!SURFACE::bUnMapImmediate+5b Followup: MachineOwner

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• How to convert a blog into a book?

  - by Shane

  Does anyone have experience converting a blog into a book? I know that there are a number of paid services out there to do it (e.g. http://www.blurb.com/, http://blog2print.sharedbook.com/).

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• Internal and External DNS from Different Servers, Same Zone

  - by Shane

  Hello All, I am either having trouble understanding how DNS works, or I am having trouble configuring my DNS correctly (either one isn't good). I am currently working with a domain, I'll call it webdomain.com, and I need to allow all of our internal users to get out to dotster to get our public DNS entries just like the rest of the world. Then, on top of that, I want to be able to supply just a few override DNS entries for testing servers and equipment that is not available publically. As an example: public.webdomain.com - should get this from dotster outside.webdomain.com - should get this from dotster as well testing.webdomain.com - should get this from my internal dns controller The problem that I seem to be running into at every turn is that if I have an internal DNS controller that contains a zone for webdomain.com then I can get my specified internal entries but never get anything from the public DNS server. This holds true regardless of the type of DNS server I use also--I have tried both a Linux Bind9 and a Windows 2008 Domain Controller. I guess my big question is: am I being unreasonable to think that a system should be able to check my specified internal DNS and in the case where a requested entry doesn't exist it should fail over to the specified public dns server -OR- is this just not the way DNS works and I am lost in the sauce? It seems like it should be as simple as telling my internal DNS server to forward any requests that it can't fulfill to dotster, but that doesn't seem to work. Could this be a firewall issue? Thanks in advance

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• Upgrade only one version of XP to Windows 8 on a dual boot computer

  - by Shane

  I have a computer running Windows XP Pro 32-bit and 64-bit in dual boot. I need to retain Windows XP 32-bit Pro, as I have expensive software that will only run on that specific version. I want to upgrade my 64-bit installation of XP to Windows 8 without losing the 32-bit installation. If I simply use the ISO to upgrade from within my XP 64-bit installation, will I retain dual boot for both XP 32-bit and Windows 8?

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• Is there any way to use the xscreensaver gltext to monitor system information?

  - by Shane

  I am trying to get the X screensaver gltext to monitor my system temp and maybe some other stats. Writing a script that puts together the stats periodically is no problem, but the main thing I'm running into is that gltext doesn't refresh - whatever text I feed it stays there. So, for example, I run this command: $ /usr/lib/xscreensaver/gltext -text "`cat /proc/acpi/thermal_zone/THRM/temperature`" and get a gltext window showing: temperature: 60 C I can manipulate it and format it as necessary, but as my CPU heats up and cools down, it doesn't update, even if I include time variables that do. I have a script that feeds gltext the time as the first line and the temp as the second line - and although the time updates continuously as the time changes, the temperature value remains the same as whenever the screensaver started. Is it possible to do what I want, which is change the text every 60 seconds if the temperature changes?

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• Switching from prefork MPM to worker MPM + php-fpm on ubuntu

  - by Shane

  All tutorials I found were how to fresh install worker MPM + PHP-FPM, since my wordpress blog's already up and running with prefork MPM, correct me if I'm wrong in the simulated installation process: I'm on ubuntu and according to some tutorials, the following lines would do all the tricks: apt-get install apache2-mpm-worker libapache2-mod-fastcgi php5-fpm php5-gd a2enmod actions fastcgi alias Then you setup configuration in /etc/apache2/conf.d/php5-fpm.conf: <IfModule mod_fastcgi.c> AddHandler php5-fcgi .php Action php5-fcgi /php5-fcgi Alias /php5-fcgi /usr/lib/cgi-bin/php5-fcgi FastCgiExternalServer /usr/lib/cgi-bin/php5-fcgi -host 127.0.0.1:9000 -pass-header Authorization </IfModule> After all these, restart: service apache2 restart && service php5-fpm restart Question: 1) Would it cause any down time in the whole process for previously running sites with prefork MPM? 2) Do you have to change any already existent configuration files like php or mysql or apache2(would they take effect immediately after the switch without you doing anything)? 3) I've already have apc up and running, do you have to re-install/re-configure it after the switch? 4) How do you find out if apache2 is working in worker MPM mode as expected? Thanks a lot!

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• External hard drive not disconnecting and leaving 'ghost drives' on my PC

  - by Shane

  I use a Seagate FreeAgent on my laptop and PC. While it works fine most of the time, sometimes when I try to safely disconnect it, it says the files are in use. Obviously I have by that time shut down all applications. Now with my laptop, a Toshiba Satellite, I shut down the computer and unplug the Seagate and no ghost drives are found. But no matter what I do with my desktop, it continues to create 'ghost drives'. Is this due to a feature in the external hard drive, and if so, would anyone have an idea how I can fix it? I am getting tired of deleting the 'ghost drives'. Both my laptop and desktop use Windows 7.

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• Customize autoindent settings in VIMRC file

  - by Shane Reustle

  I have autoindent enabled in my .vimrc file but have run into an annoying bug/feature. For example, when I'm tabbed in 3 times, and I hit return, the new line is also tabbed in 3 times. Then when I hit enter again, that new line is also indented 3 times, as it should. The problem occurs when I go back up to the previous line (the first of the 2 new lines). VIM automatically removes the whitespace because it saw it as an empty line. Is there a way to disable this from happening? I'd like to be able to back to coding like this: function test(){ <return> <return> } <up> <right> Thanks!

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• Connecting Windows 7 to NT4 domain?

  - by Shane

  My office domain is NT4, but I have a windows 7 laptop. I've been told that I won't be able to log on. Does anyone know a work around for this? They're planning to upgrade to Windows 2003, but that could be a little while.

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• Can't open cocoa emacs from terminal using open -a

  - by Shane

  I installed emacs on my MacBook Air running Mac OS X 10.6.5 from this site http://emacsformacosx.com/. I believe this is what used to be called cocoa emacs. I dragged it into my Application folder and it works fine when I run it from there. I want to be able to run it from the Terminal. After some googling, I tried open -a /Application/Emacs.app foo.txt (foo.txt was and existing file). I got two emacs windows - one with welcome screen and one with foo.txt loaded. I tried a few applications in the /Applications directory and they did not seem to behave like this. I had installed it using my own account (an admin account) so after doing ls -l on /Application I noticed that the owner and group were different from the other entries in this folder. I recursively changed the owner and group to root and wheel, like the others, but this did not help. The only thing that looks funny now is that there that ls -l show a @ character which has something to do with extended attributes but I don't know how to check these. Any suggestions on what to check next? Is using the open command the only to run the program? Can I simulate what it does using a shell script?

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• Copy and paste twice

  - by Shane

  Is there a way, to copy and paste twice? For example, is there a way, for me to copy one url, store it, and then copy another url, and then for the urls to be pasted respectively? I read somewhere, that this is possible, but have not ben able to figure it out.

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• KDE doesn't start up anything else

  - by Shane

  I just installed KDE under Arch Linux. Problem is, nothing is starting up right with it - no window manager, no panels, nothing. All I get is a small terminal window in the bottom right corner of the screen, which I'm assuming is konsole. From that single window I can do things like start kwin or launch programs whose names I happen to know (like chromium or firefox), but I don't have a panel for starting programs or switching between programs. It doesn't matter whether I start kdm through inittab or manually by typing # /etc/rc.d/kdm start. KDM looks great, but once I log in as my normal user I just get a console window with no decoration. Is there a startup script for KDE somewhere that needs to run, and usually has a bunch of programs by default - like a window manager, panels, widgets, and all the normal background programs that run in an ordinary GUI? If so, how can I "restore" the default behavior?

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• Can't open cocoa emacs from terminal using open -a

  - by Shane

  I installed emacs on my macbook air running os x 10.6.5 from this site http://emacsformacosx.com/. I believe this is what used to be called cocoa emacs. I dragged it into my Application folder and it works fine when i run it from there. I want to be able to run it from terminal. After some googling, i tried open -a /Application/Emacs.app foo.txt (foo.txt was and existing file). I got two emacs windows - one with welcome screen and one with foo.txt loaded. I tried a few applications in the /Applications directory and they did not seem to behave like this. I had installed it using my own account (an admin account) so after doing ls -l on /Application I noticed that the owner and group were different from the other entries in this folder. I recursively changed the owner and group to root and wheel, like the others, but this did not help. The only thing that looks funny now is that there that ls -l show a @ character which has something to do with extended attributes but i don't know how to check these. Any suggestions on what to check next? Is using the open command the only to run the program? Can I simulate what it does using a shell script?

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• Should server spare parts be stored in climate controlled storage?

  - by Shane Wealti

  What is a best practice for storing server spares (hard drives, RAM, power supplies, etc) with respect to how/where they are stored? Some options are storing them in climate controlled storage or just a standard warehouse-type stockroom? My understanding is that all other things being equal climate-controlled storage is preferred. What are the risks of storing that type of thing in a non-climate-controlled, somewhat dusty shelving area? Conversely are there risks to storing spares in a climate controlled area? If there are space limitations in climate controlled storage are there some parts, such as hard drives, which should be in climate controlled, while other parts such as power supplies will probably be ok in non climate controlled storage?

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• On dual-boot iMac, after fixing "EFI Boot" issue, will booting Windows cause the same issue again?

  - by Shane

  On my dual-boot iMac, after fixing the well-known "EFI Boot" issue, will booting Windows cause the same issue again? I'm hesitant to try booting Windows until I hear from others. Details: It all started when I had been working in Windows and then re-booted into Mac OSX Snow Leopard. Any attempt to boot into OSX would result in two giveaway symptoms: 1) The MAC HD was re-named "EFI Boot", and 2) a gray progress bar stopped at 10% and the spinning wheel kept spinning - no joy. Many articles on Mac Forums describe the same thing, including the fix, which is to erasing the damaged partition and either: a) re-install the OS from DVD, or b) perform a Time Machine RESTORE (which I did). Is there anything I can do to keep enjoying the benefits of a dual-boot iMac without fear of a repeat problem and associated 2-hour restore from Time Machine?

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