Linux

shared Memory is one of the fastest and fastest forms of IPC that UNIX provides for interprocess communication. Why is the fastest, because the data does not need to be replicated between the client process and the server process, so it is the

1. Overview First of all, we want to make some preliminary understanding of the basic concept of hard disk partition, the partition of hard disk mainly divides into basic partition (primarypartion) and extended partition (Extension partion) Two

Thread Safety: a function is called thread-safe, and it always produces the correct result when and only if it is repeatedly invoked by multiple concurrent processes. If a function is not thread-safe, we say it is thread-unsafe. reentrant: The

Iam a new Linux system user. How does I kill process on Linux based server using command line options? How can I kill running process on Unix?Linux and Unix-like operating system come with the kill command to terminates stalled or unwanted processes

about how to build a Linux learning environment under the Win7, especially in this share. One, Tools 1, Vmware-workstation-full-9.0.0-812388.exe download address: Http://pan.baidu.com/s/1bpFT0ZX 2, 32-bit Cenos system mirroring file Centos-6.7-i386-

1.Linux Link Concept There are two kinds of Linux links, one is called hard link (Hard link), the other is called Symbolic link (symbolic link). By default, the LN command produces a hard link. "Hard Connection"A hard connection refers to a

You can use the quotation marks in English cd/usr/chen/java/"MyEclipse 9" or cd/usr/chen/java/myeclipse\ 9 If the "\" is at the end of the line, it means that the bank is not finished, and the following lines are together with the bank. General

Reprint of the http://hi.baidu.com/imlidapeng/item/56d3b620e903303a94f62b8e How to view all running processes in Linux. You can use the PS command. It displays information about processes currently running, including the PID of the process. Both

1. Download Compressed Package I use the mosquitto-1.4.5, download the address http://mosquitto.org/files/source/mosquitto-1.4.5.tar.gz 2. Decompression Enter the directory where the package is located, and then unzip it by entering the following

The simple purpose is to clear the history commands under Linux Linux Input History command to display history-struck commands The input history-c cleared off, but the system reboots, knocking history found again, how to do? With the vi editor,

Discussion of empty directories and empty files occupy space in Linux first: In Linux systems, file systems are managed by inode and block, and each file and directory has a unique inode that stores the attributes of the file or directory. However,

                         Linux&unix Program Development Basics Tutorial                                         -----Reading notes 6th Chapter Linux/unix Process1, when a command is running in the foreground, it always controls the

My desktop environment is KDE. Last installed Sogou Input method can not be used, and today again installed back. After some toss, roughly understand the logic of the Linux input method.Linux Chinese input methods are dependent on the input method

The first step: first, to have a working Nginx server. Skip over. Step two: Generate the certificate. Make sure OpenSSL and Openssl-devel are installed. Run the command yum install Oepnssl and yum install Openssl-devel. Issue your own certificate

The source code of the collective is as follows: #include #include #include #include #include #include #include #include #include & lt;malloc.h> #include #include #include #include #include #include #include struc T buffer {

In general, we have just installed Linux with VMware virtual machines, into the virtual machine found in the upper right corner of the small computer is fork: This means that our network links are not. (You can ping Baidu Web site or something,

Summarize some ways to view the time of the Linux open Machine 1:who command to view Who-b to see when the last system started. Who-r View current system run time Linux run time: 1.uptime command output: 16:11:40 up, 4:21, 2 users, load average:0.00,

Two types of ports VSFTPD has two types of ports, one is 21 port, which listens for client connection requests. This is generally fixed and uses 21 ports all the time. The other is that once the request is fetched, the port that transmits the data

Now there is a file, the amount of data in the 200多万条 record, want to use the shell of awk to do statistics, the file format is as follows #关键字 #url#ip Address # Test|123|1 Test|123|1 Test|123|2 Test2|12|1 Test2|123|1 Test2|123|2 Now want to count

One, execl execv excle execve EXECLP EXECVP The difference is: 1, the program file to be executed is the file name or path name; 2, the new program parameters are listed or by an array of pointers to reference; 3. Pass the calling process