I am currently running a 32-bit OS, but I'm not really sure if I have to. According to some articles on the Web, there are no flags in my output that indicate that my CPU is a 64-bit. But according to articles describing the Athlon II X2 250, such as , it should be 64-bit processor. I've never been much of a hardware person, so I don't know if this article necessarily means that mine is a 64-bit, or mine is just a subset of some family of processors, some of which are 64-bit.   I am slightly worried because there is nothing in the hardware information that very specifically states Data bus size: 32 or 64. How do I know for sure?   This is the output from my /proc/cpuinfo   processor   : 0 vendor_id   : AuthenticAMD cpu family  : 16 model       : 6 model name  : AMD Athlon(tm) II X2 250 Processor stepping    : 3 microcode   : 0x10000b6 cpu MHz     : 1800.000 cache size  : 1024 KB physical id : 0 siblings    : 2 core id     : 0 cpu cores   : 2 apicid      : 0 initial apicid  : 0 fdiv_bug    : no f00f_bug    : no coma_bug    : no fpu     : yes fpu_exception   : yes cpuid level : 5 wp      : yes flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save vmmcall bogomips    : 5984.90 clflush size    : 64 cache_alignment : 64 address sizes   : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate  processor   : 1 vendor_id   : AuthenticAMD cpu family  : 16 model       : 6 model name  : AMD Athlon(tm) II X2 250 Processor stepping    : 3 microcode   : 0x10000b6 cpu MHz     : 2300.000 cache size  : 1024 KB physical id : 0 siblings    : 2 core id     : 1 cpu cores   : 2 apicid      : 1 initial apicid  : 1 fdiv_bug    : no f00f_bug    : no coma_bug    : no fpu     : yes fpu_exception   : yes cpuid level : 5 wp      : yes flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt hw_pstate npt lbrv svm_lock nrip_save vmmcall bogomips    : 5984.90 clflush size    : 64 cache_alignment : 64 address sizes   : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate
I'm confused. Running Fedora Linux, lscpu yields:  Architecture:            i686 CPU op-mode(s):          32-bit, 64-bit ...   But when I try to install a 64-bit program (Chrome) I get error like:     Package /....x86_64.rpm has incompatible architecture x86_64. Valid architectures are ['i686', 'i586', 'i486', i386']   I'm less interested in being able to install Chrome and more interested in why lscpu says that my CPU can run in 64-bit mode; clearly this can't mean I can run 64-bit programs. Can anyone clarify?
Roast duck vs. roasted duck find exec '{}' not available after > Exec allows us to either pass all arguments at once with {} + or to pass them one by one with {} \;  Now let's say I want to rename all jpeg, no problem doing this:  find . \( -name '*.jpg' -o -name '*.jpeg' \) -exec mv '{}' '{}'.new \;   But if I need to redirect output, '{}' isn't accessible after redirection.  find . \( -name '*.jpg' -o -name '*.jpeg' \) -exec cjpeg -quality 80 '{}' &gt; optimized_'{}' \;   This wouldn't work. I'd have to use a for loop, storing find's output into a variable before using it. Let's admit it, it's cumbersome.  for f in `find . \( -name '*.jpg' -o -name '*.jpeg' \)`; do cjpeg -quality 80 $f &gt; optimized_$f; done;   So is there a better way? Radius of convergence of a sum of power series I have  two series  $\displaystyle\sum_{n=1}^{\infty} a_n x^{n}$   $\displaystyle\sum_{n=1}^{\infty} b_n x^{n}$  with radius of convergence $2$ and $3$ respectively.  How can I find the radius of convergence for the following?     $\displaystyle\sum_{n=1}^{\infty} (a_n +b_n)x^{n}$   Can anyone help me? Direct observations of a black hole? Unable to disable assignment rules I have a condition where I need to disable standard Lead Assignment Rules if certain criteria are met.   if(emailWithAccIdMap.containsKey(ledRec.Email) &amp;&amp; emailWithAccIdMap.get(ledRec.Email) != null &amp;&amp; !openOppMap.isEmpty() &amp;&amp; openOppMap.get(emailWithAccIdMap.get(ledRec.Email)) != null &amp;&amp; openOppMap.get(emailWithAccIdMap.get(ledRec.Email)).Owner.isActive ==true){                     ledRec.Status = 'Duplicate';                     System.debug('Changing the Status');                     //then assign the original lead owner to new lead owner                     ledRec.OwnerId = openOppMap.get(emailWithAccIdMap.get(ledRec.Email)).OwnerId;                     ledRec.Account_Name__c = openOppMap.get(emailWithAccIdMap.get(ledRec.Email)).AccountId;                     ledRec.Field_for_Lead_Workflow__c = true;                     Database.DMLOptions dmo = new Database.DMLOptions();                     dmo.assignmentRuleHeader.useDefaultRule = false;                     ledRec.setOptions(dmo);                     //since owner is assigned, it shouledRec not pass through round robin                     ledRec.checkAssignment__c = false;  }   This is my code snippet which is running on before insert. The control is entering the IF condition as the debug statement is getting printed. Yet, the owner assigned through this snippet is being overridden by the assignment rules.  I also tried executing this in after insert trigger context but it did not work. Can somebody tell me what I'm doing wrong? How to tell what length of chain to get? Why are local variables not initialized in Java? Was there any reason why the designers of Java felt that local variables should not be given a default value? Seriously, if instance variables can be given a default value, then why can't we do the same for local variables?  And it also leads to problems as explained in :     Well this rule is most frustrating when trying to close a resource in a finally block. If I instantiate the resource inside a try, but try to close it within the finally, I get this error. If I move the instantiation outside the try, I get another error stating that a it must be within a try.      Very frustrating. In unix/linux, any number of consecutive forwardslashes in a path is generally equivalent to a single forwardslash. eg.  $ cd /home/shum $ pwd /home/shum $ cd /home//shum $ pwd /home/shum $ cd /home///shum $ pwd /home/shum   Yet for some reason two forwardslashes at the beginning of an absolute path is treated specially. eg.  $ cd ////home $ pwd /home $ cd /// $ pwd / $ cd // $ pwd // $ cd home//shum $ pwd //home/shum   Any other number of consecutive forwardslashes anywhere else in a patch gets truncated, but two at the beginning will remain, even if you then navigate around the filesystem relative to it.  Why is this? Is there any difference between /... and //... ? Changing left margin in itemize environment of beamer class I can't figure out how to line up the symbols of an itemize environment in beamer with the left part of the main text. In other words, I would like to supress the left margin in beamer itemize lists.  It would be nice if the solution worked with any itemize label defined with  \setbeamertemplate{itemize item}[]   In order to make myself clearer, what beamer produces by default is something like:  Main text. Main text. Main text...    * Item 1    * Item 2    * Item 3    ....   and the desired result is   Main text. Main text. Main text... * Item 1 * Item 2 * Item 3 .... What's the recommended way to move a VirtualBox VM to another computer? I use VirtualBox 4.1.x on my Ubuntu machine and I’ve set up several virtual machines. Since there are several ways one can move a virtual machine in VirtualBox to another computer, I was wondering which one is the recommended way:   Use the “Import/Export utility.” Copy the entire virtual machine folder, containing the .vdi and .vbox files. Clone the VDI using “Virtual Media Manager” and then recreate a VM on the target machine but using the cloned VDI as the hard disk.   I have successfully used the 1st method several times and it has always worked. The problem is that after exporting and importing, the disk image is transformed into VMDK and not VDI anymore!  The 2nd method is probably the easiest but I’m not sure that simply copying the files will work or not on the target machine. When searching about this method, I found some people had problems in which they had to edit the VirtualBox.xml file to solve it!  At last, there’s the 3rd method, but it requires the extra work of creating a VM similar to the original VM configuration, which is not desirable.  It’s clear from the above explanation that my desired method is the 2nd one, but I need expert advice on this if it works or not. I don't want any XML editing getting in my way!  What’s the best method of safely transferring my VM’s to another computer with VirtualBox? Note: Suppose $f(z)$ is a polynomial or a proper/strictly proper rational function.   Can someone demonstrate why if all coefficient of $f(z)$ are real then relation $f(\bar z)$ = $\bar {f(z)}$ hold  Is there a theorem for this result? Prove $|\arctan x - \arctan y|\leq |x-y|$ I have been playing around with camera tracking and I'm happy enough with the tracking and alignment of the markers with the footage when viewed through the camera.    The problem is, when I am not looking through the camera I can see that the grid isn't aligned to the camera.    How do you correctly align the grid to this tracked camera? I have set a floor and two points for scale, also clicked setup tracking scene, but this just added cube and plane which were on the grid. I have a number of friends on my battle.net account. However, sometimes I don't want to appear online to some (or all) of them. Is there a way to be hidden from your friends on battle.net? Book about actress forced to disguise alien murderer I read this book once when I was in middle school. A girl solves a murder or a mystery on a spaceship. It was a thin paperback books.   All I can remember is that there was an alien, and there was a movie star or actress or famous makeup artist on the ship traveling with another woman. By the end of the book the murderer was the woman the actress was traveling with who forced her to use her makeup skills to disguise her, and she was really some kind of alien. Shoot, Shoot At I have a question about the difference between the verb "shoot" and "shoot at":          Police shot the suspect.     Police shot at the suspect.        Are they just the same? NetGear A6100 AC600 wireless adapter not working in Ubuntu 20.04. Worked fine in 18.04. Not same problem as previously Firstly, I know very well there are answers to this already. But, in my case, it is installed and shows in the terminal as such Bus 001 Device 007: ID 0846:9052 NetGear, Inc. A6100 AC600 DB Wireless Adapter [Realtek RTL8811AU]  It says it is installed in  as well.  I have tried downloading the driver for this adapter from several guides online, linking to GitHub, but no luck there either...  Any help is greatly appreciated! Thanks in advance!  EDIT: The answer from sudo dkms status command reads:  rtl8812au, 4.3.8.12175.20140902+dfsg, 5.4.0-31-generic, x86_64: installed  The other command  modinfo 8812au | grep 9052   spits out the following:  alias:          usb:v0846p9052d*dc*dsc*dp*ic*isc*ip*in* What is the correct output of cat /etc/apt/sources.list? How can I use QGIS to create a metro style map How do I add a Pokestop to my area? How do I add a Pokestop to an area that has none? It is an area where there are tons of businesses but unless I drive about a mile from my work area there are no Pokestops.   I want to add one since we have 1000's of people in the work area, a lot of them play Pokemon Go, and we all can't leave work to drive a mile away to get to a Pokestop area.   Plus it would be nice to be able to capture Pokemon on our breaks.