Linux

One, the first backup restore usage, using the toolIptables-save >/opt/iprules.txtIptables-restore Third, second backup restore usage, using service scriptsService Iptables Stop simply clears the user-state rule, and the kernel-state thing is not

In Linux, use the PWD command to view the full path to the current working directory. Simply put, you will have a current working directory every time you operate in a terminal.When unsure of the current location, PWD is used to determine the exact

The touch screen is summed up as input subsystem, here is mainly for the resistive screen, the use of the process is as follows: When the touch pen is pressed, resulting in an interrupt. Start the ADC conversion x, y coordinates in the interrupt

System InformationThe processor architecture of the Arch Display machine (1)UNAME-M Display the processor architecture of the machine (2)Uname-r displaying the kernel version in useDMIDECODE-Q Display hardware system

Linux system installed, found that Chinese display garbled. Because the system is encoded as en_US. UTF-8, should be changed to support the Chinese encoding (i.e. ZH_CN. UTF-8) The operation record is as follows:1) Check the Linux system codeCheck

Process ID of the Linux kernel process managementThe Linux kernel uses a TASK_STRUCT data structure to correlate all process-related data and structures, and all the algorithms that involve processes and programs in the Linux kernel are built around

1. Prerequisites:PostgreSQL 9.6.1 has been installed through source mode and can be run successfully.2. Other OS PacketsOs:centos 6.4 X64X64:libxml2-devel3.geos-3.6.0http://download.osgeo.org/geos/geos-3.6.0.tar.bz2# tar XJVF

1, causesRecently some files on the Linux server were tampered with, want to trace the records have not been found, so you have to think of a way to record all the user's Operation records.Generally, we usually use history to record, but there is a

Linux is an excellent open-source operating system, can run in large-to-small to the palm of a variety of computer systems, with the growing maturity and stability of Linux systems and its unique advantages of open source code, Linux in the world

2016.11.4 9:30-10:15Adding new softwareIf you do need to install additional software, your first need to determine the canonical name of the relevant software PAC Kage. For example, you ' d need to translate "I want to install locate" to "I need to

1. Questions:Recently in the real-time synchronization of the log, before the online is done a single part of the online log stress test, Message Queuing and client, the machine is no problem, but did not think of the second log, the problem came:A

Find is a very common Linux command, but what we generally find out is not just to look at it, there will be further operations, this time the role of exec is revealed.EXEC explained :The-exec parameter is followed by command, which terminates with

Linux touch commands are not commonly used, and are generally used when using make, to modify file timestamps, or to create a new file that does not exist.1. Command format :touch [Options] ... File...2. Command Parameters :-A or--time=atime

Description:The lab environment used in this article is the VMware Workstation 12.5 Pro running on WINDOWS10, the host operating system is UBUNTU16 (machine name is kvm_test), Kvm+qemu+libvirt is installed on kvm_test. The client operating system

The LS command is the most commonly used command under Linux. The LS command is the abbreviation for list. LS is used to print out the list of current directories if LS specifies a different directory then the list of files and folders in the

LinuxfindBrother even Linux Training Summarizing these timestamps includesCopy the code code as follows :　　mtime file content last modified　　The time that the atime file was read or accessed　　ctime file status change time　　The meaning of mtime and

Vim environment variable configuration, background color configuration, and vim environment variable background color When we use vi or vim, if we want to display the row number, we may do this: switch to the command mode, enter set nu, and then

Linux C language displays the. BMP Format Image, linux.bmp 1/************************** 2 3 * bmp. h文4 4 5 *************************/6 7 # ifndef _ BMP _h _ 8 # define _ BMP _h _ 9 10 # include 11 # include 12 # include 13 # include 14 # include

Use netstat in Linux to view the network status, port status (to), and linuxnetstat Turn: http://blog.csdn.net/guodongdongnumber1/article/details/11383019   In linux, netstat is generally used to view system port usage.The netstat command is a very

[Linux] Linux commands for counting folders and files, and linux statistics # View the number of files in the current directory (excluding files in subdirectories) Ls-l | grep "^-" | wc-l # View the number of files in the current directory