Linux

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Let's talk about Linux redirection:0, 1, and 2 represent standard input, standard output, and standard error message output, which can be used to specify the standard input or output that needs to be redirected.In general use, the default is the

Samba file sharing serviceService features: cross-platform file sharing1. Environment DeploymentIp=192.168.1.50[[email protected] packages]# RPM-IVH samba-3.6.9-164.el6.x86_64.rpm2. Building Samba ServicesTwo sharing modes: Anonymous share [global]

file path:/etc/sysctl.confCentos5 System[email protected] ~]# vi/etc/sysctl.confNet.ipv4.tcp_fin_timeout = 2(By default ,TCP remains in fin-wait-2 for socket connections that are disconnected at the end of the The time of the state. The other

This records the mmap use of the test giant page, and the test code is similar to the Linux giant page usage test and Erratum 1.The trace script is as follows:Probe kernel.function ("Hugetlb_reserve_pages"). return{printf ("Hugetlb_reserve_pages pid=

#ls [path] lists the names of folders and folders under the specified path, and if no path is specified, then see templates, pictures, downloads, desktops, videos, documents, music and other options#ls-L presents the above options as a

1. zip files are files that can be unzipped in Windows, Linux2. RM-RF *: Delete all files in directory3. zip file command: gzip file nameThe gzip command can only compress files4. Extract Files command: gunzip (or gzip-d) file nameNote: The source

First, the boot sequence of Linux bootRead the BIOS information-----Read the MBR sector information------boot loader (boot loader)-------load the kernel file----------- user layer init sets the runlevel according to the Inittab file------- The INIT

About JenkinsJenkins is a continuous integration tool based on Java development that monitors ongoing duplication of work, including:1. Continuous software release/test project. 2. Monitor the work performed by external calls. Installation

Before just installing the JDK on Windows, the company now needs to install the Java environment on Linux, which summarizes the installation process1. Download JDK: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.htmlI

#topThe first line of the top command ": £º 3 min, 0.000.000.00 "The contents are displayed in turn"System Current time,The time that the system has been running so far,The number of users currently logged on to the system,System load (average

Makefile is a class script file for a valid executable file that is generated for GCC compilation, under Linux. It consists of 2 processes, which are compiled to produce an. o file, and the link is delivered as an executable file.Give me a

Four cardinal principlesLearning Goals ( Beliefs ): I plan: ① 2 hours of Linux learning every day② a daily blog to develop a good habit of writing blog postsLearning Methods ( Our values ): Success is most experienced in learning from experienced

Have always thought that their own Linux also said the past, in fact, has not kept up with the ever-changing application needs.There are no ready-made documents to look at, too many mistakes. However, after years of accumulation, it is possible to

One, single-user mode Power-on press e into emergency mode, and then move the cursor to linux16 to find the RO, the RO will be replaced by RW init=/sysroot/bin/sh, after the completion of the ctrl+x.650) this.width=650; "src="

Network Fundamentals 1.1Detailed interpretation of TCP/IP:Introduction to TCP/IP protocol:TCP/IP is the most widely supported set of communication protocols---includes standard protocols in a large number of Internet applications;---support

Mkdir -- command, MkdirCommand Mkdir: the abbreviation of make directory (ies), used to create a directory1. Syntax Mkdir [OPTION]... DIRECTORY Note: Option is a selection, optional, and directory is the name of the directory to be created2. Options

Linux File System In Linux, everything is a file, so we will discuss the file system in Linux. In Linux, we can divide a disk into one or more partitions. Each partition can contain a file system. Each file system includes a self-lifting block, a

Linux crontab and linuxcrontab Write a little bit every day. One day, the salted fish will become more salty.   The cron service is a linux scheduled execution tool that can run jobs without manual intervention. The frequency can be divided Minute

Java maven environment configuration in ubuntu First, you need the Ubuntu system on your computer: (this should be all done, so we will not introduce it here) Environment: Java Python maven This you can download the jdk_8u144-linux-x86.tar.gz