what symlink

The previous article is the file operation (chapter III), the code in the article in the file operation (code download).3.6 formatted output and input 3.6.1 printf, fprintf, and sprintf functions printf functions are capable of formatting and

As we have said many times before, the device file management method based on the main device number/secondary device number is fundamentally flawed. This approach, which has been used since the early days of Unix, has caused trouble with the

This article is not a beginner Tutorial!!! Parallels Desktop (to prevent the NIC type from being found to be set to Intel (R) pro/1000 MT). KALI-LINUX-2.0-AMD64 (i386). ISO (the LIVECD compilation tool is complete, LiveCD start another

Now the storage system, itself has a strong migration and backup strategy, although still based on the network transmission, there is a relative delay, but a lot of convenience. In addition, the current storage system, read-write bottlenecks, and

1. Fixed can be networked IP address 2. Turn off firewall 3. Turn off selinux4. CD-ROM auto-mount 5. Configure the local Yum source RHEL6 configuration method: 1.ifconfig 2. Profile (permanent) 3.setup/nmtui1. Ifconfig View IP Address crtl+l in

Reference article: 1 http://blog.csdn.net/wuwenxiang91322/article/details/9259877 changing file permissions via chmod Additional knowledge :1 Linux files have three identities and four permissions, and three identities are: U: Owner of File

In a Linux system, the kernel allocates an Inode (index node) for each newly created file, each with a unique inode number. The file attributes are stored in the index node, and the index nodes are copied to the file when they are accessed, enabling

you must have encountered the problem of disk chaos in the process of using Linux. In general, there are several possible disk chaos, such as the disk is connected to the serverthrough a RAID card, the raid card battery is not power, this time if

Learn about Linux file systems from InodeHard links and soft links are an important concept in the Linux file system, which involves index nodes (index node, also called Inode) in the file system, and the index node object is one of the four basic

struct stat { mode_t    st_mode;    file type. File Permissions ino_t     st_ino;        I node number dev_t     st_dev;        dev_t    st_rdev;     Device file serial number nlink_t    st_nlink;    link uid_t    st_uid; gid_t     st_gid;  

Method Description: Get the real path. You can use PROCESS.CWD to resolve relative paths. Grammar: Copy Code code as follows: Fs.realpath (path, [cache], [Callback (Err, Resolvedpath)] Because this method belongs to the

1. Install package, default is Indigo version sudo apt-get install Ros-indigo-robot-upstart 2. I believe you have installed a lot of ROS package, I do not have a new package here, using the Turtlebot_navigation Create a file in the

JAKARTA struts structure porting the PHP development framework, using object-oriented development architecture and APIs, simulates an HTTP servlet container and uses the PHP Service page engine technology. Download Address:

It is said that php5.4 is faster than the previous versions of PHP, so it is necessary to install to test (domestic more popular PHP programs such as Discuz and so on php5.4 support seems not too friendly, so webmaster friends or to be cautious

FTP are probably all used, SFTP used estimates are relatively few. Simply put, it is a secure before FTP, through the SSH channel between the local and remote server file transfer, more secure. Connection This is usually the case for SSH

Web|web Service |web Server | Security This will ensure that the Apache, SCANLOGD, and SuSE firewalls are automatically executed when the computer is started. Now we continue to configure the local firewall to change the corresponding lines in

1. Generate Rule File Touch/etc/udev/rules.d/99-oracle-asmdevices.rulesOrTouch/usr/lib/udev/rules.d/99-oracle-asmdevices.rules 2. Generate rulesThe SDB is not partitioned to execute the following shell script,For i in B;Todoecho "kernel==\" sd*\ ",

[Oracle@goolen ~]$ Sqlplus/as SYSDBA Sql*plus:release 10.2.0.1.0-production on Tue Dec 31 20:05:37 2013 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-production With

Problem Configuration of SendMail SendMail is often a "no-go area" for general system managers, because most systems use The need for e-mail and dependence on the degree of high, can be said to be a bit of a mistake, system managers will be ready to

1. Download the installation package mssql-server:https://packages.microsoft.com/rhel/7/mssql-server/ mssql-tools:https://packages.microsoft.com/rhel/7/prod/ [[email protected] home]# ll Total usage 150072 -rw-r--r--   1 root         root