Ifconfig Configure the Network interface tool introduction;
Ifconfig is a tool used to view, configure, enable, or disable network interfaces, which is extremely common. For example, we can use this tool to temporarily configure the network card IP
GStreamer is the programming framework (framework) used to build streaming media applications in the GNOME desktop environment, the goal of which is to simplify the development of audio/video applications that can now be used for processing such as
As a slave Linux machine for the CentOS system.
1 Linux slave Machine setup
Create Jenkins user sudo/usr/sbin/useradd-m jenkins-d/home/jenkins;
View information ID Jenkins for Jenkins Users and groups:
uid=506 (Jenkins) gid=506 (Jenkins) groups=506
mu network: Linux talent Formation program Linux common Commands
Linux Common Commands
1. Command basic format
linyk3@thinkpad:~$ linyk3: Login user name ThinkPad: Host name ~: Current Location $: normal User, #: root user
command [options]
To reduce the amount of space occupied by log files, in many cases we package the log files in days or weeks as tar.gz packages. While this is a good space to take advantage of, it is inconvenient when we want to look at the contents of a compressed
windows and Linux dual systems modify boot entry order
Install the Ubuntu dual system under windows and choose Ubuntu by default at startup, at least three ways to modify the boot sequence.
1. Modify/boot/grub/grub.cfg
sudo vim/boot/grub/grub.cfg
corresponding to the Linux platform to grab the package methodGrab the whole bag:
#tcpdump-X-S 0 host 192.168.1.12
Grab 68 Bytes:
#tcpdump-X Host 192.168.1.12
The corresponding port grab bag:
#tcpdump-x UDP port 1812
corresponding to the
Tag:linux Tips JPEG
Copyright notice: When reprinted, please indicate the original source and author information of the article by hyperlink form and this statementHttp://rtfsc.blogbus.com/logs/23148378.htmlBelieve that used friends should like to
1. Xargs Usage Detailed
because many commands do not support | Piping to pass parameters, and there is a need in daily work, there is a xargs command, such as:
find/sbin-perm +700 |ls-l This command is wrong.
find/sbin-perm +700 |xargs ls-l This
There is a recent use of the socket to send and receive data to the client at the same time, because it is an embedded Linux device and requires only one client to connect to the port at a time. Given the savings in system resources, only two
an overview
Linux kernel Gpio is the simplest, most commonly used resource (and interrupt, Dma,timer) driver, applications can use the corresponding interface Gpio,gpio use the integer ID between 0~max_int, can not use negative numbers, Gpio is
Reference:Http://elinux.org/Device_Tree_Usagehttp://blog.csdn.net/sgmenghuo/article/details/45071615 Basic Data Format
The device tree is a simple tree structure that contains nodes and attributes. Properties are described by the form of key-value
1 ls view file or directory"Feature description": View files or directories"Syntax format": ls parameter specifies a file or directory"Option Parameters":Parameter parameter description-L View details of a file or directory Ls-l/root-h Displays the
The TCP model is as follows:The model above is already clear.The specific function usage will not elaborate.Take a look at the TCP simple example:where server.c#include #include #include #include #include #include #include #define ERR_LOG (ErrLog)
Linux/unix/mac systemCreate a new ~/.netrc file and record the GIT server, username, and password in this file as follows:
Machine your-git-Server
Login Your-username
Password Your-password
The ordinary user's git-server fills the
See this scene in the group today:See here, let's learn this RM directiveRM command to delete one or more files or directories in a directory, or to delete all files and subdirectories of a directory and its subordinates. For linked files, only the
1 Import the SOLR jar package into Linux and unzip TAR-ZXVF solr-4.10.3.tgz.tgz2 Go to file CD Solr-4.10.3/bin run SOLR./SOLR start-p 8080 ps-ef|grep solr view SOLR for presence3 Test If you can run a local LINUXIP:8080/SOLR4 If you can run off SOLR.
POSIX semaphores differ from the set of System V semaphores, and the POSIX semaphore is a single semaphore, divided into known semaphores and nameless semaphores.POSIX-known semaphores are semaphores with POSIX IPC names that can be used for
Stat Instructions: File/File system details are displayed.The stat command is primarily used to display detailed information about a file or file system, which has the following syntax:Stat command-to display the details of the file, including Inode,
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