One Linux command per day (1): ls command

  The LS command is the most commonly used command under Linux. ls command is the abbreviation of the list, the lack of saving LS is used to print out the current directory of the list, if LS specifies a different directory, then display the list of

Under Linux, set permissions for directories and files,

Set permissions for directories and files under Linux, including recursive recursion settings for subdirectoriesThe chmod command can change permissions for all subdirectories, there are 2 waysChange permissions for a file: chmod mode File|dirTo

SVN installation--linux Environment

Download: http://subversion.tigris.orgCurrent date stable version SVN1.32 #: Tar zxvf subversion-1.3.2.tar.gzEnter./configure, make, and sudo made install to complete

Linux Learning Notes (ii) system common commands and some concepts

Root user (Administrator) is the most privileged user (Universe invincible)Liunx command line use formatcommand-[options] [parameters]Option to invoke the specific function of the commandParameters are object, file, directory name, etc. of command

Linux Classification Notes (i)-Rights management

Linux Classification Notes (i) Rights managementNormal permissions for normal permissions filesAfter you use the LS-LL command for an ordinary file, you see the following output And for each of the file permissions, it also represents the

One Linux command per day: chown command

Chown the owner of the specified file to the specified user or group, the user can be either a user name or a user ID; a group can be a group name or a group ID; a file is a space-separated list of files to change permissions, and wildcard

20135326. Three experimental reports of 20135303-linux experiment

Beijing Institute of Electronic Technology (BESTI)Real Inspection report Course: Basic experiment of information security system design class: 1353 Name: Wei Hao Wang may also study number: 20135303 20135326Score: Instructor: Lou Jia Peng

One Linux command per day: lsof command

Lsof (list open files) is a tool that lists open files for the current system. In a Linux environment, everything is in the form of files, with files that not only access regular data, but also access to network connectivity and hardware. So, such

The role of #define _XOPEN_SOURCE in Linux programming

Misunderstanding#define _xopen_sourceIt's definitely not a simple macro definition.It is an integral part of making the program conform to the system environmentConceptThe functions implemented by GLIBC in all or part of the specification are:1.ISO

Basic usage of regular expressions in Linux


Regular Expressions: pattern-matching languages have their own syntax and rules, the most important of which are metacharacters, usually enclosed in single quotesUse Greb to match text (Greb basic usage is to provide a regular expression and a file,

Modify Linux File Permissions command: chmod

Each file and directory in a Linux system has access permissions, which are used to determine who can access and manipulate files and directories.Access to a file or directory is divided into read-only, write-only, and executable three types. As an

Configuring SNMP under Linux

SNMP (Simple networkmanagement Protocol): Easy Network Management ProtocolThe case is listed as Linux Environment Construction ( CentOS-6 )Use Yum to install:Yum Install-y Net-snmpReview the network configuration when the installation is

Linux Emergency Rescue Experiment

Simulation experiment of Linux emergency rescue modeRescue mode: Emergency rescue modeStart a Linux system on the CD, which detects the local hard disk device during startup and looks for the original root file system to complete some repairs with

One Linux command per day: wget command

The wget in a Linux system is a tool for downloading files, which is used at the command line. For Linux users is an essential tool, we often have to download some software or restore backup from a remote server to the local server. The wget

Linux Command Learning Note: chgrp command

in the LUnix system, the control of the permissions of a file or directory is managed by the owner and the group being sued. You can use the CHGRP command to change the file and directory to belong to the group, this way with the group name or group

Linux under SVN installation configuration

First chapter Installation1. Compile the installation with the source file. The total source files are two:subversion-1.6.1.tar.gz (Subversion source file)Subversion-deps-1.6.1.tar.gz (Subversion dependent file)Note that the file version must be

Linux View memcached Status

First, using the Memcache top scriptMemcache-top is a Perl-written command-line gadget used to get detailed information about the memcached cache server in real time, such as cache hit ratio. To the official website to download the script, put in

Linux Command Learning Note: Cut details

The Cut command cuts bytes, characters, and fields from each line of the file and writes them to standard output. It takes each line of the file as a processing object. Command format:Cut[options] [scope] file. option is used to specify the unit

[Linux] Linux awk command detailed

reference: is a powerful text analysis tool, with the search for grep and the editing of SED, which is especially powerful when it comes to analyzing data and generating

Window Linux IPC ftok by_handle_file_information

Look at the problem is very chaotic, the mood is not very good, of course. Some time ago, a project was made, one of the AIX (Unix) systems migrated to Windows, and the development environment was created by the IBM C/s + + (called What forgot, as

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