Linux

One linux Command every day (38): cal command link: One linux Command every day (1): ls command http://www.bkjia.com/ OS /201210/163049.html#linuxlinuxcommand every day (2): cd command serial (3 ): pwd command Export (4): mkdir command Export (5):

To enable nginx to support PATH_INFO, you must first know what pathinfo is and why do you need pathinfo? Pathinfo is not a function of nginx, and pathinfo is a function of php. There are two pathinfo in php, one is the environment variable $ _

1 What is awk is not only a text processing command, it is also a programming language. It can process columns without affecting the original file. 2 simple usage of awk $ awk-F: '{print $1}'/etc/passwd $ awk-F: '{print $1, $3} '/etc/passwd $ awk-F:'

FreeBSD: http://mirrors.163.com/FreeBSD/ISO-IMAGES-amd64/8.3/FreeBSD-8.3-RELEASE-amd64-dvd1.iso with thunder download can,Virtual Machine hard disk is set to 20 GB, memory 512 MB, the partition is as follows:/2048 MSwap 1024 M/Usr 17401 MThe

Linux statistics-related command Learning 1. find the qualified row grep, egrep: www.2cto.com 2. extract valuable information and discard useless information. cut: for example, use double quotation marks as separators. Use the second segment: cut-d \

Linux system memory usage of more than 90% -- the solution should first clarify the problem: Is the Linux system memory occupied by more than 90% of the normal range? I have a detailed explanation on the Internet, which is a normal phenomenon ~~~

The CPU freq tool is used to temporarily adjust the clock speed of the CPU. the CPU and the main board have power-saving technologies. If the CPU is working at a low load, the frequency is automatically reduced. If you need to temporarily set the

An ftp script for searching and uploading updated files #! /Bin/ksh #################################### ##################### Date: 2012-12-19 # name: swiftftp. sh # decription: an infinite loop, which is executed once every minute. Search for

Nginx log cutting and recording Cookies [python] www.2cto.com #! /Bin/bash # log file storage directory logs_path = "/data/Service/nginx/logs" # Name of the log file. Separate multiple log files by spaces = (dm_access) mkdir-p $ {logs_path}/$

Part 1: at command 1. at command: to execute a specified task at a specified time, it can only be executed once. You must enable the atd process (ps-ef | grep atd view, and enable/etc/init. d/atd start or restart; run chkconfig -- level 2345 atd on

Linux Process SchedulingI. Cache-primary storage structure1. Advantages of Cache:L The read/write speed of the Cache can almost match the CPU, which can greatly provide the system access speed.L The Cache capacity is relatively small than the

Some common shutdown/restart commands in linux include shutdown, halt, reboot, and init.The system can be restarted, but the internal working process of each command is different.We hope you can use various shutdown commands more flexibly.1.

When deploying applications in Linux, sometimes the Socket/File: Can't open so many files problem occurs, for example, Squid acts as a proxy, when the number of files opened to 900 is large, the speed will be very fast, and the web page may not be

Master software installation and maintenance, configuration, and other skills in the Linux/Unix environment as required. Here I will record my usage experiences and share them with you. Take database installation as an example (Note: The above

1. Copy the license of HDLM to/var/tmp/and name it hdlm_license (for example, cp HDSHDLM \ DI103 \ 0910091447561.plk/var/tmp/hdlm_license)2 mount the disc. Generally, RedHat will automatically mount the disc. The directory is usually

Modify the MAC address in LinuxMethod 1: 1. Disable the NIC DeviceIfconfig eth0 down2. Modify the MAC addressIfconfig eth0 hw ether MAC address3. Restart the NICIfconfig eth0 up Method 2:After the preceding method is modified, the MAC is restored to

The following is the free running result. There are 4 rows in total. For convenience, we add the column number. In this way, we can regard the free Output as a two-dimensional array FO (Free Output ). For example:FO [2] [1] = 999212FO [3] [2] = 30540

A well-known architecture in linux is lamp: linux + apache + mysql + php.  Apache has always been the most popular Web server on the Internet.Background process: httpdScript:/etc/rc. d/init. d/httpdPort: 80 (http), 443 (https)Required RPM package:

#! /Bin/sh # Get_current_time pay special attention to the following items which must be extracted manually. The environment for manual execution is different from that for crontab-e execution.Export JAVA_HOME =/opt/jdk1.6.0 _ 10/Export PATH = $

NFS (Network File System) Server ConfigurationPurpose: share folders. It is developed by sun.1: Check whether the NFS server is installed. The Red Hat Enterprise Linux5 system is installed by default. How can I check it and execute the following