Linux

Hardware platform:1 master control: SMDK Exynos4412 POP s5m8767a2 RFID module: RC522 module provided by June Shield Group3 Communication interface: SPISoftware platform: Android ICS & Kernel version 3.0.15One, enable the main control side SPI1

has been using Jconsole to monitor the JVM, the graphical interface is easy to use, recently because the need to operate under the pure Linux, so summed up the Linux monitoring JVM under the example, this time the main use of the Jstat tool,The

This depends primarily on what program is used to edit the file. If it is VI, then: ESC exits edit mode and enters the following command: : Wq after saving exit VI, if: wq! After forcing the store to exit (common) : W Save but do not exit (common) :

previous article on [Original] manual configuration of Ubuntu Linux DHCP client, here again to configure the static IP address method. is still editing the interfaces file. $ sudo vi/etc/network/interfacesThe eth0 configuration is as follows:Auto

Statement:Postgres-version 9.2.5* Specific installation methods refer to the following link:1. http://blog.scimpr.com/2014/08/11/ubuntu12-04%E3%81%A7postgresql%E3%81%AE%E5%85%A8%E6%96%87%E6%A4%9C%E7%B4% a2%e3%80%9ctextsearch_ja/* Summary of problems

head [filename]head-n [filename] first one lines head-c [filename] Head defaults to show the first 10 rows.tail [filename]tail-n [filename], last lines tail-c [filename], last characters If the 第10-22 line to display text can be used:1 head-n2

Boot Root Automatic LoginIf you want to enter in the HyperTerminal, login and execute, you can add commands in the/etc/profile;If you implement an automatic login for power on, and modify it in/etc/inittab, each development board may be modified in

Today Mayuyu to learn one of the important things in Linux, namely shared memory . We know that there are various IPC communication mechanisms available in Linux, such as signals, semaphores, pipelines, message queues, shared memory, and sockets. It

Viewing the system version~$ uname-aLinux laptop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33: -UTC i686 Gnu/linuxView sound card driver modules in Model AC97~$ Modprobe-l | grep

Nmon is the abbreviation for Nigel's performance Monitor for Linux on POWER, x86, x86_64, Mainframe & Now ARM (Raspberry Pi), meaning Nigel (n Mon is the author of Nigel Griffiths) 's Linux performance detector.This system administrator, tuner,

Reprint: http://blog.csdn.net/wangjingfei/article/details/5283632/It is very convenient to be familiar with Ifconfig.ifconfig eth0 New IPThen edit/etc/sysconfig/network-scripts/ifcfg-eth0, modify IPFirst, modify the IP address[Email protected]

1, set the network card, IPDevice=eth0 #描述网卡对应的设备别名, for example, in Ifcfg-eth0 file it is eth0 bootproto=static #设置网卡获得ip地址的方式, the possible options are static,dhcp or BOOTP, Corresponding to statically specified IP addresses, IP addresses

1. About/etc/host, hostname and IP profile   hosts:the static table lookup for Host name (hostname query static table)   Linux/etc/hosts is the configuration IP address and It corresponds to the hostname of the file, where you can log the machine or

Commemorate the next: 2014 Dalian's first snow, December 1, the morning to see the sky floating snowflakes, in fact, is still very beautiful! Self-taught Linux students should be "bird Brother's Linux private dishes" will not be unfamiliar, bird

Open Source: Is the program code, written to the human look of the program language, but the machine does not know, so unable to execute; compiler: Translate the program code into a machine-readable language, like a compiler's role; an executable

Due to multiple input of the wrong password that day, SSH and putty are not connected, tangled up a long time to solve the problemSSH connection Prompt error: Server unexpectedly closed network connectionPutty Connection Hint ErrorThe problem is

In many versions of Linux, it can be roughly divided into two series, namely: Redhat system Linux,debian system Linux. In the two different systems of Linux, the management of the package is also a certain difference, but their principles are

In Linux, the iptables firewall releases the port to reject the port and view the opened port. I use fedora 14. 1. view the port enabled by iptables firewall:/etc/init. d/iptables status [Root @ hzswtb2-mpc ~] #/Etc/rc. d/init. d/iptables status or

Linux tips-use dd to generate a file of the specified sizeDuring testing or debugging, we sometimes need to generate a file of a certain size. For example, when testing the storage system, we need to reduce the remaining disk space by 5 GB, the

Install Zabbix 2.0.6 in 64-bit CentOS 6.2 Install Zabbix 2.0.6 in 64-bit CentOS 6.2 1. install components Yum install make mysql-server httpd php mysql-devel gcc net-snmp-devel curl-devel p3rl-DBI php-gd php-mysql php-bcmath php-mbstring