Linux

OpenCV is the most popular and advanced code library for computer Vision related applications today, spanning fro M many very basic tasks (capture and pre-processing of image data) to high-level algorithms (feature extraction, motion TR ACKing,

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Start the BIOS programWhen the power key is pressed, the BIOS (Basic nput Output System) is run by the flash memory on the motherboard. The BIOS program will decompress itself into the system's memory and then read the information stored in the CMOS

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1. Hardware Connection Development Board and PC(1) Connecting the network port with parallel lines(2) Connect the serial port with serial cable2. Open "HyperTerminal"Port settings:(1) Number of bits per second (baud rate): 115200(2) Data flow

Ubuntu Linux System environment variable configuration file:/etc/profile: The first file that is used when the operating system customizes the user environment at logon, which sets the environment information for each user of the system, which is

InstallationInstalling an older version of Linux on a VMware virtual machine encounters a lot of problems and records it.1. Install to half error redhat7.3 file/usr/bin/anaconda,line633 .... WhatFIX: Old Linux does not support SCSI disk, when

The configuration of the VNC server is simple:# vncpasswdpassword:******verify:******# Cat. Vnc/xstartup #!/bin/sh# Uncomment the following the lines for normal Desktop:unset session_managerexec/etc/x11/xin it/xinitrc[-x/etc/vnc/xstartup] &&

How do I install XAMPP?Choose your flavor for your Linux OS, the 32-bit or 64-bit version.The permissions to the installerchmod 755 Xampp-linux-*-installer.runRun the Installersudo./xampp-linux-*-installer.runThat's all. XAMPP is now installed below

Linux file and directory permissions combatEnvironment creates two usersuser1 and user2[Email protected] ~]# useradd user1[[email protected] ~]# useradd user2Create a two folder[Email protected] ~]# mkdir-p/user1/user2Open another terminal to

The Chkconfig command is primarily used to update (start or stop) and query run-level information for system services. Keep in mind that Chkconfig does not immediately automatically disable or activate a service, it simply changes the symbolic

1. View text odd/even linesOdd line: sed ' 2~2d ' fileThe following 2 indicates that the input stream is two lines, and the preceding 2 and D means that 2d deletes even the second line: sed ' 1~2d ' fileThe back 2 indicates that the input stream is

1. Recursively query a file containing a string in the specified folder (the file content fragment listed)grep-r "string to find" file pathsuch as: Grep-r "HelloWorld". #在当前目录下递归查找 "HelloWorld" string2. recursively find file names (list file

1. Ready-made information on the InternetFormat: Sed-i "s/lookup field/replace field/g" ' grep lookup field-rl path 'Linux SED Bulk replaces strings in multiple filesSed-i "s/oldstring/newstring/g" ' grep oldstring-rl yourdir 'For example: Replace

Sometimes you need to have access to a shared folder of Windows under Linux, either mount with mount or use Samba to connect.1. Mount MountsFirst create the mounted directory:$ mkdir WindowsTo mount a shared folder to a Windows folder:$ sudo mount-t

Problem with using gdb under the linux-ubuntu14.04, ubuntu14.04 installation tutorial Problem: (Gdb) list No symbol table is read. Use the "file" command. The reason is that there is no symbol table in the executable file. Why is there no symbol

Linux Files, document operation commands (1), linux commands Open a directory (enter this directory): cd [path] Create document: mkdir [file name] Delete a directory (only empty directories are allowed. to delete the entire directory, You need to

Install Linux on the vmwarevm, change the Chinese system, and update the yum installation input method, vmwareyum When I used VMware Workstation11 today, I encountered a "problem". After selecting the system disk (I used the iso image centos6.5),

Configure a fixed IP address for the vmwarevm centos 1. First, vmware needs to set the bridging mode. In this way, virtual machines are regarded as a computer with the host in a LAN. In centos, you can set the Ip address of the host in the same

How to enable the CentOS service automatically upon startup 1. Use chkconfig to configure the startup levelIn other CentOS or RedHat systems, if services are installed later, such as httpd, mysqld, and postfix, the system will not start