Linux

Linux can use the LL command to determine the file type, mainly based on the first character of each line to judge. -rw-r-r-"-" The beginning of all is ordinary documents; drw-r-r-"D" begins with a directory file; brw-r-r-"B" is a file that

1, Linux overview    Linux is a free and open source Unix-like operating system. Strictly speaking, the term Linux only represents the operating system kernel itself, but usually uses the Linux kernel to express that meaning. Linux is often used to

Prompt: [Root@localhost ~]# [Login user name @ Host name current directory] Prompt ~ Home Directory/root/home/aa Prompt: # Super User $ normal user Format of a Linux command 1, command [options] [parameters] LS list shows the contents of the

1, motherboard information. To view the serial number of the motherboard--------------------------------------------------#使用命令 Dmidecode |　　Grep-i ' serial number ' #查看板卡信息 Cat/proc/pci-------------... 1, motherboard information. View the

Problem: When you use Linux to send mail, sometimes you want to send HTML-formatted mail, if you find the HTML message sent, but the contents of the mailbox received or pure TXT format. Reason: Linux uses the Mail function to send the header

Hibernate suspend to hard drive, standby suspend to memory. PM (Power-manager) Shut down immediately: sudo halt sudo init 0 sudo shutdown-h now sudo shutdown-h 0 Timer/latency shutdown: sudo shutdown-h 19:3 0 sudo shutdown-h +30 #

First, configure Yum source and Epel source Epel Source Download Address: http://pan.baidu.com/s/1o7NJ26u 1. Configure the Yum source (1) Upload operating system image file to configure Yum source, mount point directory for/yum Mkdir/yum Mount-o

1. The overall difference: A process is the basic unit that serves and allocates system resources, and threads are the basic units of tasks executing, smaller than processes. Threads can be understood as lightweight processes, which means that

Main function int Openport (char *dev)//Open serial port int setport (int fd, int baud,int databits,int stopbits,int parity)//Set serial port, baud rate, data bit, stop bit, checksum int readport (int fd,char *buf,int len,int maxwaittime)/read data,

First , prepare before upgrading 1. Nginx The configuration file nginx.conf do backup; 2. Create a new directory/root/nginx, upload the installation package and script to the directory; second, smooth upgrade Nginx 1. Start compiling the

First, install Tomcat 1. Download Tomcat installation package apache-tomcat-7.0.62.tar.gz and jdk1.7 2. Install Tomcat, copy the apache-tomcat-7.0.62.tar.gz to the directory/usr/local/tomcat after the decompression; 3. Configure Tomcat Configure

Another: To achieve some Linux with the same function of the command, (for example: to achieve in Linux query CPU occupancy rate, Linux command is top), you can refer to the command (top) of the Linux source code, Transferred from

Ps-ef|grep tomcat/View Process RM-RF tcar* Removal Mv.. /tcar.war./Mobile Kill-9 25383 kills the process CTRL + C to end the current command PWD View current path /******************************************/ Dir View current

The first is the command to query the entire disk capacity. You are not unfamiliar with DF, you can see the approximate occupancy. [Root@slave2 ~]# DF filesystem 1k-blocks Used Available use% mounted on /dev/xvda1 41151808 7119776 31918600 19%

For me, Ubuntu's Live CD is good enough, but it's too bulky. I need a small Linux Live CD. Mention live CD can not mention Knoppix, this is made by the German Klaus Knopper version, but today I want to introduce a small damn Small Linux, size is

Linux excutable in the implementation of the default is to search the/lib and/usr/lib directories, and then according to the ld.so.conf inside the configuration search absolute path, linux default is not in the current directory search dynamic

"1" Reference: http://pydev.org/index.html Recently installed in the ubuntu12.4 devpy plug-ins, encountered installation errors, the last found to be a plugin problem, we recommend that you use the following URL installation

Configuring Samba is a simple thing to do, but Linux is like this, and if it goes well, everything is fine. But if not smooth, then a variety of inexplicable situation. Very flying blind, after all, the Linux great God belongs to the rare

1 Open Gateway 1.1 problem descriptionAfter each reboot of the virtual machine, you need to use ifup eth0 to manually turn on the gateway, otherwise the acquired IP address is loopback 127.0.0.11.2 SolutionsModify the Onboot property in Ifcfg-eth0

Start by borrowing a diagram to illustrate the relationship between Linux applications and the kernel! [] (http://i2.51cto.com/images/blog/201807/28/ce7cdc22c42c5b93bd5604c0ba1878db.png?x-oss-process=image/