Linux

Hello everyone, I am an IT peasant worker from Shenyang . 2012 years did not graduate when they chose to leave the school internship, then felt that school learning things are not in the community to learn more things. A person took the luggage to

Several CPUsMore/proc/cpuinfo |grep "Physical ID" |uniq|wc-lEach CPU is a few cores (assuming the same CPU configuration)More/proc/cpuinfo |grep "Physical id" |grep "0" |wc-lCat/proc/cpuinfo | grep processor1. View the number of physical

bin = BINaries (binary)/dev = devices/etc = Etcetera etcetera additional persons, extras, and others, etc./lib = LIBrary/proc = PROCesses/sbin = Superuser BINaries/tmp = Temporary/usr = Unix Shared Resources/var = VARiable?FIFO = First in, first

Typically, when you use CP-RF to manage files or folders, you are generally no longer reminded of overwriting. However, the use of CP-RF on a single machine in the intranet indicates whether or not to overwrite. Is it different from the usual

The dpkg command is a utility used by Debian Linux systems to install, create, and manage software packages.1. Syntaxdpkg (option) (parameter)2. Options----------confiugre: Configure the package.3. Parameters　Deb Package: Specifies the. deb package

Flow (Stream)1. A stream refers to a sequence of data elements that can be used.2. Flow, can be imagined as the belt on the waiting for processing of goods, can also be imagined as a factory assembly line items.3. Stream, can be unlimited data.4.

Why should we learn to useFindCommand? Each operating system consists of thousands of files, forLinuxThis is no exception to the "Everything is file" operating system, and everyone should be able to use it easily.WindowsThe file lookup function

I. Preparatory work1.I. LFS TARGET architectureLFS's primary target architecture is Intel's 32-bit architecture. The 32-bit computer architecture is the most widely supported Linux system, while the 32 architecture enables open source and non-open

Yesterday compiled a Linux kernel source code, encountered some problems, today I encountered problems and solutions to share to everyone. Hope can help to the people who need it.1) Check if the appropriate package is installed (the "Development

1. Related ConceptsSemaphore: The essence is a kind of data operation Lock, it does not have the function of data exchanging, but realizes inter-process communication through other communication resources (file, external device), which is an

Linux Command cut usageCut commandCut [OPTION] ... [FILE] ...-D DELIMITER: Indicates delimiter-F Fileds:#: Section # Fields#,#[,#] Discrete multiple fields, such as 1,3,6#-#连续的多个字段, e.g. 1-6Mixed use 1-3,7--output-delimiter=string            [[email 

Each file and directory in a Linux system has access permissions, which are used to determine who can access and manipulate files and directories.Access to a file or directory is divided into read-only, write-only, and executable three types. As an

Reprinted from:http://blog.163.com/hlz_2599/blog/static/142378474201341394955248/Reprint is mainly afraid of link failure, later see.1. Setting up Telnet Server2. Build a DHCP server3. Build a DNS server4, build SendMail server5. Build FTP Server6.

The training course on Linux has been waiting for two years. From 2010 to formally contact the server, mainly or hardware, their own more and more interested in Linux, now work a lot of time. Learned, oneself also many way out. While you are not old,

A CPP file written by VS2010 is used under Windows, and you want to put it on Linux for compiling. Discover that each line of code in a file on Linux follows the ^m symbol at the end.Why does the same file appear differently on Windows and on Linux?

Cases:[CPP]View PlainCopy Status = System ("./test.sh"); 1, first unified two statements: (1) System return value: Refers to the return value after invoking the system function, such as the status system return value (2) Shell return

Samba is a free software that implements the SMB protocol on Linux and UNIX systems , consisting of servers and client programs . SMB (Server Messages block, information service blocks) is a kind of communication protocol for sharing files and

Ubuntu 16.04 LTS fast update source in ChinaUbuntu 16.04 LTS quick source update in China I. Source File Location Back up and replace/etc/apt/sources.listSource Content:Ii. Change the source file content sudo vi /etc/apt/sources.list Deb

Use Nginx + Lua to proxy Hadoop HA and nginxhadoop I,Hadoop HAOfWebPage access   After Hadoop enables HA, there will be two Master components to provide services at the same time. The component in use is called Active, and the other is called

Implement point-to-point message transmission of JMS Based on Tomcat + JNDI + ActiveMQ I wrote a simple JMS example. The reason for using JNDI is for universality. This example uses the common interface provided by the JMS specification and does not