Linux

The sort command is to help us sort by different data types, its syntax and common parameter formats:　　sort [-bcfmnrtk][source file][-o output file]Additional notes: Sort can be sorted for the content of the text file, in the unit of

First, check the related services1. Check Crond ServiceService Crond StatusInstallation ServicesYum Install Vixie-cron2. Check the crontab Configuration toolCrontab-lInstalling crontabYum Install CrontabsSecond, set up the Scheduled tasks1. View

Turn from http://tilt.lib.tsinghua.edu.cn/node/889 How to use parted to align partitions for optimal performanceSat, 03/08/2014-18:02- Tlbluestar SOURCE Address: Http://rainbow.chard.org/2013/01/30/how-to-align-partitions-for-best-per ...How to

Link command: LNlink============= Gorgeous split-line =============LN also has soft links and hard linksHard-Link features (hard links are not recommended) 1. Have the same I node and storage block block, can be regarded as the same file 2. Can be

1. ReadPurpose: The value of variables can be read from the keyboard, usually used in shell scripts to interact with the user, the command can read the values of multiple variables at a time, variables and input values need to be separated by a

LinuxTomcat log view utility commands   Practical commands:   View tomcat running logs Tail-f catalina. out View logs by keyword search Cat jeewx-2015-09-20.log | grep Verification Code View fixed-time logs Cat

Svn knowledge points1. find the linux operating system: uname-a 2.svn installation: yum install-y subversion 3. svn operation command. run the file checkout to the local directory: svn co svn: // 192.168.230.119/kds/code/server/trunk/html-spider B.

Encryption and decryption in linuxEncryption/Decryption: encryption protocol: encryption and decryption use the same key: 3des, aes public key encryption: Public Key private key pair digital signature, key exchange RSA, DSA data signature algorithm (

Performance Tuning basis, Performance Tuning Load and CPU utilization These two indicators are the key indicators to measure the CPU busy degree. Load indicates the length of the process queue that is currently running and waiting for running. The

Install pptp in centos References: http://www.dabu.info/centos6-4-structures-pptp-vpn.htmlhttp://www.ttlsa.com/linux/centos-install-pptp-vpn/ The following is the most important installation method for centos 6.4 64-bit. You must select the pptpd

Install and configure tomcat in Centos 6.5 1. tomcat installation and configuration 1. What is tomcat?Tomcat is a software used to parse jsp programs.Tomcat is a core project in the Jakarta project of the Apache Software Foundation. It is developed

Install sctp on CentOSCollation I recently learned Unix network programming. In Chapter 10th, many bugs caused by the absence of SCTP protocol in the system when implementing sctp client/server programs, the sctp installation records on CentOS are

Install socks 5 in CentOS What is SOCKS? The Socks protocol (SOCKS: protocolforsessionstraversalw.ssfirewallsecurely) provides a framework, it makes it easier and safer for client/server applications in TCP and UDP domains to use the services

Install Docker1.8 in Centos7 1. Create a docker yum Library [Root @ localhost ~] # Cd/etc/yum. repos. d/ [Root@localhostyum.repos.d] # vim docker. repo [Dockerrepo] Name = DockerRepository Base url =

CentOS route adding command 1. ip route display and set Routing 1. display the route table [root@centos7~]#iprouteshowdefaultvia192.168.150.254devenp0s3protostaticmetric1024192.168.150.0/24devenp0s3protokernelscopelinksrc192.168.150.110 The format

Delete physical volumes in an LVM volume group under CentOS This article describes the commands vgreduce and pvremove in LVM management. As a matter of fact, the previous articles have been mentioned and involved. Vgreduce: removes physical volumes

Install the Chinese font in the win system on centos 1. Start with your local machineC: \ Windows \ Fonts copy or download the font file (*. ttf file) to the/usr/share/fonts/chinese/TrueType directory (if this directory is not in the system, create

Install linux on PXE Network PXELinux installation on the network is like this: started by the installed client PXE Nic --> broadcast dhcp requests through the Bootp protocol --> DHCP server --> Get IP address, TFTP server address --> download

Set NAT network connection for centos in VMwareIn Minimal of Centos 6, the network card is onboot = "no" by default, and the NetworkManager-dependent option is set. NM_CONTROLLED = "yes ", in the case of minimal, NetworkManger, the default network

Cache cleanup in CentOS (drop_caches) When reading and writing files, the Linux kernel caches the files in the Memory to improve the Read and Write efficiency and speed. This is Cache Memory ).The Cache Memory is not automatically released even