Where does iostat obtain IO-related information?

TIPS: Do you know where iostat gets IO-related information? Use the strace command to track the answer: Shell> strace-eopen iostatOpen ("/proc/diskstats", O_RDONLY) Note: For more information about diskstats, see the official documentation (field1 ~

View File System Types in linux

Function: Checks disk space usage of the file system. You can use this command to obtain the space occupied by the hard disk and the remaining space. Syntax: df [Option] Note: The df command displays the I node and disk block usage of all file

The Screen Resolution on the Linux character modification Interface

Grub ModeEdit grub. conf/Boot/grub. confIn kernel/boot/vmlinuz-2.6.18-128.el5 ro root = LABEL =/rhgb quiet vga = 791After restarting the computer, you can view the modified result through GRUB.Values corresponding to different colors and

Vi command details

Vi usage1. cursor h left j down k up l rightSet nu: display the row number (set nonu) 21: cursor stops at the specified row21G line N (G to the end of the file, 1G to the file header) If you want to move the cursor to the first line of the file,

Install BackTrack5 (BT5) under a virtual machine)

  : Http://www.backtrack-linux.org/downloads/ Compared with bt4, BT5 has been upgraded from both the kernel and applications. Bt5 can also download gnome or kde Desktop systems, while the traditional bt4 uses kde by default. Based on Ubuntu Lucid

Ubuntu10.04 Network icon disappears

  After the computer is turned on today, XP can access the Internet normally, but it still cannot be connected to the Internet after Ubuntu is changed.   There is no wireless connection in the house. Vro.   I thought that the Network icon

Centos5.6 (64bit) Compile and install the vsftpd-2.3.4 configuration (two user logins)

    I. Key points of the article: Virtual user configuration using PAM data in a 1.64-bit System 2. The key script is successfully compiled. Necessary steps: Detailed installation and configuration instructions. 3. Full configuration instance,

One-day learning of open-source Linux software and related organizations

Open-source software and Its Features   Open Source Software (OSS) is an Open Source Software. You can modify, use, copy, and distribute the source code of the software. Features of open-source software: Open-source software is generally released

How to create and decompress zip, tar, tar.gzand tar.bz2 files in Linux

  Data Compression has been very useful for us over the years. Whether it is a zip file used for sending images in an email or compressing data files on the server, we can make the download easier or more effective to save disk space. Some

I am USB in Linux, I am a USB flash drive (2) Makefile

"Come out and try again sooner or later ." Basically, there is a Makefile under each directory in the Linux kernel. Makefile and Kconfig are like a map of a city. A map leads us to know a city, while Makefile and Kconfig let us know the structure

Several Modes in Linux multi-nic bond

I. Purpose of the documentThis document is mainly used to introduce and sort out several modes in bond, and to facilitate future work and viewing. Ii. Document ContentWith the increasing innovation of science and technology, data security has

Chrome font settings in Linux

I tried a variety of methods and set the Font in the browser Preference. Although the plug-in Change Font can be used, it is not great to force all the Font changes, besides, the effect is not very good. I tried the following method, and the effect

I am USB in Linux. I am a USB flash drive (8) bus, device, and driver (on)

In struct bus_type, two linked lists are prepared for the device and the driver. The struct device contains two members, struct bus_type * bus and struct device_driver * driver. Similarly, the struct device_driver, which represents the driver, has

Linux lsof commands

  Lsof (list open files) is a tool used to list open files in the current system. In linux, everything exists in the form of a file. Through a file, you can not only access common data, but also access network connections and hardware.Enter lsof in

Detailed configuration of apache + tomcat clusters in linux

  Environment: Operating System: CentOS 5.1 Apache2.X server: IP address 192.168.232.4; installation path:/usr/local/apache; Tomcat6 server: IP address 192.168.232.5; installation path:/usr/local/tomcat; Tomcat6 server: IP address 192.168.232.6;

FreeBSD starts from scratch-system installation (2)

3. Set after installationIn the NIC configuration phase, the DHCP mode is usually not used as the server, so you need to set the Server IP address and gateway. However, it does not matter if you do not set it here. You can also set it after you

Playing boxing in Linux (not Wine)

  1. Download xmame (apt-get install xmame -*) 2.download the kof97.tar.bz2 file to my resource and put it in the/usr/share/games/xmame/rooms/folder: (Note that all the names in the folder must be in lowercase)   3. Enter xmame kof97 in the

About how to replace Sed

  1. Introduction to Sed Sed is an online editor that processes a row of content at a time. During processing, the currently processed rows are stored in the temporary buffer, called the pattern space. Then, the sed command is used to process the

Install oracle 11gr2 in Redhat 6

  1. Check the system package Rpm-q compat-libstdc ++-33 elfutils-libelf-devel glibc-common glibc-devel gcc-c ++ libaio-devel libaio libgcc libstdc ++ libstdc ++-devel make sysstat unixODBC-devel pdksh5.2.14     Note that the package pdk5.2.14 does

Installation of Chinese language packs and input methods in English Operating Systems

    Method 1: 1. Configure the yum library, 2. graphical installation. Choose applications> add/remove software> Languages> chinese support, Then select apply for installation.   Method 2: Install the rpm on the disc. The data packets below the rpm

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