Linux

Navigation (navigation) basic commands: PWD (printworkingdirectory): Print the current directory; CD (changedirectory): Change directory; LS (list): List contents; Extended: CD: "." Point, representing the current directory; Dot, representing

#Cat/proc/cpuinfo Linux under /proc/cpuinfo The file will display information about the CPU Processor will start counting from 0 and continue with multiple CPUs Flags if HT description supports Hyper-Threading technology To determine the

Empty ARP cache (empty ARP table) method under Linux system Command Red font mark System initial ARP Environment [Root@esx ~]# Arp-n Address Hwtype hwaddress Flags Mask iface 192.168.1.175 ether 00:24:1d:97:b6:7f C vswif0 192.168.1.120 ether 00

BTRFS, usually read as Butter Fs,better FS or B-tree FS. Next-generation Linux file system. It is based on a write-time copy (copy-on-write) that supports efficient snapshot and clones. It uses B-tree as the stored data structure. On the home page

Lamp is the meaning of linux-apache-mysql-php. Lamp Web site architecture is rich in Web resources, low price, and other characteristics. is currently the international popular web framework. Open source software used to build dynamic Web sites or

--How to view memory consumption at the OS level for a single process Aix: $ svmon-pt10 | Perl-e ' while (<>) {print if ($.==2| | $&&&! $s + +); $.=0 if (/^-+$/)} '-----use this to see the largest memory-consuming 10 processes---------------------

Grep-v keywords in the keyword file file to filter out Grep-v "^ keyword" files are filtered by the keyword at the beginning of the keyword Sed-e '/keyword/d ' file output when the keyword is deleted Take/etc/passwd as an example: Output except 1

Content Introduction: A brief introduction to DNS Installation of DNS server DNS common nouns Detailed DNS configuration file Configuring the Primary DNS service A brief introduction to DNS In order to distinguish each host in the network,

A strange problem that suddenly appeared today, GDB is always tracking a few lines, the execution of the step command can not enter, in a resolution to start to find the problem: 1, first confirmed by the latest file compiled 2, confirmed that the

This article is based on redhat6.0, the default system has been configured Yum source, it is not clear to refer to my blog about yum configuration. All of the following are based on the root user. 1, the TFTP service installation and configuration

Example explains how to use Fdisk partition in Linux I. Introduction to FDISK Fdisk-partition table manipulator for Linux, translated into Chinese means the Disk partition table operation tool; I do not translate very well, and do not read Chinese

Hard link (hard links): Creates an extra entry for a file.  when used , there is no difference with the file; when deleted , only links are deleted and files are not deleted; limitations of hard Links: 1. You cannot refer to documents other than

Environment: CentOs6.5Samba is a remote communication service that enables the operation of files on a Linux server in a Windows environment, after all, for most people, the developer of the win editor such as Sublime, Vscode, is more efficient than

Permissions for files and directories are divided into: Read, write, execute, permission objects are divided into: creator, the same group as the creator, other users three classes, followed by "-" separated. To modify the permissions of a file or

time synchronization command:Ntpdata time.windows.com Automatic Time synchronization:need to configure the/etc/crontab file for automatic task executionlet Linux automatically sync time from time.windows.comVi/etc/crontabAdd one sentence:XX 0 1 * *

Parameters://Assume a set, B set, AB intersection # COMM [Options] Texta textboptions:1, representing a set to remove the overlap of ab intersection that part; 2, the B set to remove the overlap of ab intersection that part; 3. The part of AB

Contents of the 1.pid fileViewed with the cat command, you can see that there is only one row of content and the ID of the process is loggedThe role of 2.pid filesPrevent multiple copies of a process from startingThe principle of 3.pid filesWhen the

Installing dependent development PackagesYum Install Readline-develYum Install *argparse*wget https://www.python.org/ftp/python/2.7.6/Python2.7.6.tgzIpython https://github.com/ipython/ipython/releases/download/rel-2.1.0/ipython-2.1.0.tar.gzCompiling

CentOS find command In Linux, the find command searches for files in the directory structure and performs the specified operation. In Linux, the find command provides many search conditions and has powerful functions. Because find has powerful

Use the make command in centosMakeCompile source code, connect, generate target file, and Executable File Based on Makefile.Make cleanClear the object files generated by the last make command (Files suffixed with ". o") and executable files.Make