Linux

1. Special permission Facl (Access control list support)The standard Linux file System (EXT2/3/4) supports the use of POSIX ACLs to set multiple complex file permissions, provided that the file system is mounted using the ACL option.In red Hat

The pause function of the pause function suspends the process that calls it until any message arrives . The calling process must be able to handle the signal being served, otherwise the default deployment of the signal will occur. int pause (void),

Package Management:The compilation of the application's constituent files package one or several package files, so as to quickly and easily implement the package installation, uninstallation, query, upgrade and calibration management operations;Ways

RPM , as the most important software management tool of Linux, has an indispensable position, and even yum relies on the existence of rpm to use it properly. , so it's important to master the rpm recovery, so let's look at how to restore the rpm.

Linux Text Processing ToolsWC Print the number of lines, words, and bytescut split text by column Sort Sortsuniq Eliminating duplicate rows WC print the number of lines, words, and bytesGrammar:WC [OPTION] ... [FILE] ...Options:-l:line count

The SED of LinuxSED is the abbreviation for Stream Editor, which allows text editing of text flows, specified sets of files, or standard input. Features are very powerful.The basic mode of the SED command is:sed [-parameter] ' command ' text1. Two

Useradd is a very basic command in Linux, but it is not intuitive to use. So that in Ubuntu added a adduser command to simplify the operation of adding users. This article mainly describes some test results when I learn to use the Useradd

2016.8.31 10:00-10:301.12 WAYS to FIND and INSTALL softwareChapter, software Installation and Management, addresses software provisioning in detail. But for the impatient, here's a quick primer on how to find out what's installed on your system and

Trinity is a new desktop environment developed based on KDE 3.5.Trinity is a new desktop environment developed based on KDE 3.5. Kde,k Desktop Environment (Kool. Environment). A well-known operating system running on Linux, Unix and FreeBSD free

Do not endure hardship, difficult people. Efforts to provide a good living environment for the wife and children.Http://www.cnblogs.com/nan-jing/articles/5806399.htmlThe above mentioned how to create a proc node. But I often see cases where the/sys

1, the Replication/etc/skel directory is/home/tuser1, requires/home/tuser1 and its internal files belong to the group and other users do not have any access rights.Cp-r/etc/skel//home/tuser1Chmod-r Go-rwx/home/tuser12. Edit the/etc/group file and

============= mount and login command ======================================== reprintMount: Mount command. For example, mount the optical drive Mount/dev/cdrom/mnt/cdrom, you can view the contents under the directory/mnt/cdrom, you want to exit the

============= mount and Login commands ========================================Mount: Mount command. For example, mount the optical drive Mount/dev/cdrom/mnt/cdrom, you can view the contents under the directory/mnt/cdrom, you want to exit the disc,

ACLS are the main purpose of Access Control List to provide traditional owner,group,others read,write , specific permission settings other than Execute permissions,ACLs can be r,w,x for a single user, a single file, or a directory to control

In fact, this topic is a bit large, here is only a Linux and Windows file transfer, but this method is very practical, that is: Zmodem protocolSpecifically, the Linux command is: RZ and SZBut in fact they are two very handy tools. Rz,sz is

Linux and Windows file transfer implementationsI. OverviewWhen we are learning Linux servers, we sometimes need to interact with the files under Windows, how do we do this? Today is my first time to write an article in the blog park, it is time to

CentOS6.5 upgrade autoconf version 2.64 or higher is required, centos6.5autoconfWhen installing software, the system prompts that Autoconf 2.64 or later is required. [Root @ BobServerStation twemproxy] # autoconf   Configure. ac: 8: error: Autoconf

Rsyslog + mysql + loganalyzer build a log server , rsysloganalyzerThe general idea is as follows: Use the rsyslog service that comes with Linux as the underlying layer, and then use the templates of mysql and rsyslog to store files and display them

Use subversion to build SVN and subversion to build svn The software packages required to build SVN using subversion include subversion, apr, apr-util, sqlite, zlib, this is because the installation path of apr, apr-util, sqlite, and zlib must be

Linux operating system and common commands 2. Common commands in linux Date: Time Management Linux: Hardware clock: clock, hwclock Hwclock -W: Change the hardware clock -S: Change the system clock System clock: date Rtc: real time clock Ntp: net