Number of occurrences of some specific string grouping statistics under CentOS for a file

If the existing data:{"@timestamp": "2018-10-13t21:55:58+08:00", "REMOTE_ADDR": "100.120.34.3", "Referer": "-", "Request": "get/api/gourd/ Activeupload?idfa=58237fa9-a1b3-4202-b5f3-9536983119e5&appid=1410137206&source=rehulu HTTP/1.1 "," status ": $,

Basic CentOS operation

Linux is a free-to-use and free-to-propagate Unix-like operating system, a POSIX and Unix-based multiuser, multitasking, multi-threaded and multi-CPU operating system. It can run major UNIX tools software, applications, and network protocols. It

USB flash Drive Installation CentOS 7.x system cannot mount to installation interface solution

1, when entering the system installation interface, press the TAB key to open the System boot command line 2, in the System boot command line, we can see Vmlinuz initrd=initrd.img ... 3. List the Mount device information of the server; Vmlinuz

Creating CentOS 7 templates for virtualized platforms

Direct Post command:Vi/etc/sysconfig/network-scripts/ifcfg-eth0 only retains the following content:Type= "Ethernet"bootproto= "Static"Name= "Eth0"Device= "Eth0"onboot= "Yes"Ipaddr= ""Prefix= ""Gateway= "" rm -f /etc/udev/rules.d/70* rm -f /etc/

Centos installation Configuration

VirtualBox Install CentOSCentos7 Restart prompt after installation Initial setup of the CentOS Linux 7 (CORE) workaroundProblem:CentOS7 installation is complete, restart boot after the display:Initial setup of CentOS Linux 7 (CORE)1) [x] creat user 2

Centos installation Django2.1

First, the Environment preparation1.1 Server SystemCentos71.2. Required ToolsPython3 (theDjango 2.0 version is based on the Python3 version, so install Python3 is required)Setuptools (>24.0)PIP3 (18.1)Second, installation2.1 Installing Python3:

CentOS 7 Installation and configuration vsftpd

First, firewall open 21 portSecond, the creation of the FTP user, after creating the user in the/etc/passwd is presented in this way: Ftpuser:x:1008:1008::/var/www/html:/sbin/nologinThird, yum list |grep vsftpd find the package name and install it

Centos Firewall Configuration

1. query the Firewall StatusService iptables status2. Enable FirewallService iptables start3. Disable the FirewallService iptables stop4. Restart the FirewallService iptables restart5. permanently disable the FirewallChkconfig iptables off6. Enable

The centos system sets sudo permissions for normal users.

A. Check whether sudo is installed. # Rpm-Qa | grep sudo B. Modify the/etc/sudoers file and add a sudo user. # Define do-F/etc/sudoers C. After root all = (all) All, add Tom all = (all) All Defaults: tomtimestamp_timeout =-1, runaspw //

Common centos commands

Net table fireproof ROC iptable no information USB computer name 1. First, check the processes running by the system. If you need to check all processes currently running by the system, Run the following command: # ps auxw The parameter A shows

Centos synchronization time

Perform the following steps to synchronize time in the centos system: The newly installed centos system server may be set incorrectly. You need to adjust the time zone and time. The following is how the centos system uses NTP to synchronize data

CentOS-6.9 mounting zabbix 3.4

1. Disable SELinux [[Email protected]/] # sed-I "s # SELinux = enforcing # SELinux = disabled # G"/etc/SELinux/config # restart to take effect [[email protected]/] # setenforce 0 # temporarily disable 2. zabbix requires MySQL or a later version.

Installing tinydns on centos 5.5

Requirements of tinydns Copied with permission from the author. Original site is at http://www.djbdnsrocks.org 1) At least 2 unused IP addresses. 1 is usually fine.2) daemontools-this was installed if you did my Qmail install. If not, please install

Apache configuration in centos

Install httpd in the ghost source package. (1) Static default installation. The command is as follows: After the preceding steps, run the following command to check the installed modules: Check whether the module is activated, for example: The

Configure the APR advanced mode and SSL Certificate of Tomcat 7 in centos

I use the free certificate provided by startssl here, startssl certificate application can refer to the following link: http://www.setsea.net/wordpress/post/2011/04/21/881.htmlAfter the application is completed, you will have three files: SSL. CRT

Manually install gcc4.5.0 in centos 4.8

gmp

  The main body of the article is from the network http://www.cnblogs.com/silverwings/. the installation process of the article is slightly modified.   The latest GCC version is 4.5.0. I have manually installed centos (version 4.8) and encountered

Configure centos tips

1. XXX is not in the sudoers file Edit/etc/group and add XXX to the wheel group. For example, "Wheel: *: 0: Root, XXX"Run export do and set % wheel all = (all) nopasswd: All Ii. Install the video card driver: The procedure is as follows:1. Check

Install svn1.7.7 on centos

gpg

Centos's default Yum -- install subversion, which is installed with version 1.6 The installation script 1.7 is: #!/bin/bash echo WANdisco Subversion Installer for CentOS 5 echo Please report bugs or feature suggestions to opensource@wandisco.

Build a cloud computing platform ~ Eucalyptus Installation Log centos 5.3

I just want to keep a journal account, not a technical document. 1. First find document http://open.eucalyptus.com/wiki/EucalyptusPrerequisites_v1.5.2 Check what needs to be prepared before installation. 2. Go

Notes for quick installation of nginx in centos 6.4

The articles on how to install nginx in centos 6.4 are written by ex_net (Zhang jianbo). For more information, see the source. Http://blog.csdn.net/ex_net/article/details/9860689 Author: Zhang jianbo mailbox: 281451020@qq.com Phone: 13577062679

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