dev tour

In my recent project, I need to use JNI to call C/C ++ compiled programs. Since I was not familiar with JNI, I found many of them on the Internet are implemented based on the VC or vs2008 series. In this way, it is very troublesome to install hundreds of megabytes of VC or several GB of vs for a simple call, because I have been using Dev C ++ for C Development (this Dev is very compact and powerful, but it

/dev/null fileIf you want to execute a command, but you do not want the output to appear on the screen, you can redirect the output to/dev/null:>/dev/null /dev/null is a special file, and the content written to it is discarded, and if you try to read from the file, nothing is read. However, the/

Ready to work: 1>dev-c++ 5.10 Version System Win Xp/win 72> Download Ege Graphics library "Ege-13.04.02-full"!, for information on the dev-c++ of this configuration, see:Now start the configuration:1, unzip "Ege-13.04.02-full" to any folder, such as C:/ege2, there is an "include" folder in the extracted file. There is a "Ege" folder in the folder and two. H files are copied down.　3, copy the files in the In

A few days ago, the hands of the cheap, accidentally deleted/usr. So carved a BACKTRACK3 boot disk, go into the system backup.I mounted the home with mount/dev/sda6/mnt/home and then tar cf/mnt/usb0/bak.tar/mnt/home back up.After the backup, I backtrack3 in the virtual directory around, suddenly, I found/media directory also has a home folder, open a look, found and/mnt/home exactly the same!Originally, the/MNT directory holds the hardware that is mou

The shell may often see: >/dev/null 2>1 Eg:sudo kill-9 ' ps-elf |grep-v grep|grep $1|awk ' {print $} ' 1>/dev/null 2>/dev/null The result of the command can be defined as the output in the form of%> /dev/null represents empty device files > represents where to redirect, for example: echo "123" >/home/123.txt1 indic

First, currently using the Losetup emulated hard drive to create a VG, as follows: Mkdidr-p/var/lib/cinderDD If=/dev/zero of=/var/lib/cinder/cinder-volumes bs=1m count=10000Losetup/dev/loop2/var/lib/cinder/cinder-volumesPvcreate/dev/loop2Vgcreate CINDER-VOLUMES/DEV/LOOP2 (Losetup-f can query the current first block of

The Internet mobile is now developing faster and faster, a variety of application software and the rise of the Hand tour, the mobile end of the rich and colorful; the mood an excitement, the mind a fever, began to watch the video, read study. Remember the 11 when there was a study of the development of Android, but only the basic study of the next, not seriously in-depth study. This time, I decided to study hard, and recorded by the blog, witness the

/******************************************************************** * Python-dev Installation Error * Description: * present This error occurred while installing Python-related development tools. * 2016-8-15 Shenzhen Nanshan Ping Shan village Zengjianfeng ************************************************************** *****/A. Reference documentation:1. Can'T Install Python-devhttp//Askubuntu.com/questions/749552/cant-install-python-devtwo. Error phe

Shell may often see:>/dev/null 2> 1 Command results can be defined in the form of %> /Dev/null indicates an empty device file.> Indicates the redirection location, for example, echo "123">/home/123.txt1 indicates stdout standard output. The default value is 1. Therefore, ">/dev/null" is equivalent to "1>/dev/null"2

First, download the Windows version of PthreadCurrently the latest version is:pthreads-w32-2-9-1-release.zip.Second, unzip the pthread to the specified directoryThe directory I chose is: When E:\DEV-CPP\Pthread is complete, the directory will have three more folders: Pre-built.2,pthreads.2,queueuserapcex.iii. Configuring dev-c++ compilation Options1) Click "Tools" → "Compile Options" → "contents" → "C + + I

Wpf dev CellTemplateSelector (a Demo that correctly uses DevExpress CellTemplateSelector), wpfdevexpress Description I encountered many pitfalls when using WPF Dev CellTemplateSelector as needed in the project. I once wanted to abandon the use of the template converter, But I was unwilling to use it. I finally made constant efforts to meet the requirements. So write it down and share it with you. If you are

most crontab scheduled Tasks, at the end of the command line will take >/dev/null 2>1, what is the role of it? The following is an explanation: > delegate redirection;/dev/null represents an empty device file, equivalent to a recycle Bin. null is a thing called a null keg that redirects the output to its goodis: The file size is not increased because of too much output, which means that the o

Http://blog.chinaunix.net/uid-20564848-id-74706.html The FoPs of/proc/iomem and/proc/ioportsAnalysis on how to extract vmlinuz-2.6.31-14-generic from Vmlinux on PCFs_initcall (Chr_dev_init);Chr_dev_init==> Register_chrdev (mem_major, "MEM", memory_fops); Establishing a/DEV/MEM character nodeMemory_open will be based on the minor of the inode to locate the specific fops,Like whatTo Mem_fopsFor Kmem_fops1,8 to Random_fopsAnd so on (see devlist[below fo

From: http://xierongzhong1.blog.163.com/blog/static/5232328620102921658692/ Shell may often see:>/dev/null 2> 1 Command results can be defined in the form of %> /Dev/null indicates an empty device file. > Indicates the redirection location, for example, Echo "123">/home/123.txt 1 indicates stdout standard output. The default value is 1. Therefore, ">/d