Linux

Examples:If there is a file type of the data is "-rwxr-xr--", please explain its meaning 丿 why?For:The entire type of data is checked separately, and the 10 characters are organized as follows:[-] [RWX] [R-x] [r--]1 234 567 8901 is: represents this

The previous day, using PMAP to see the memory usage of the game service developed by the server, found that the memory footprint of the data storage service was very high, as follows.　　It can be seen from the allocation of a large amount of about 64

In bash, check that the remote port is open:echo >/dev/tcp/8.8.8.8./53 && echo "Open"Suspend the process Ctrl + Z, is not omnipotent, there is a program to capture the signal. The pending process stops executing, letting its background execute with

0. Basic commands1. Compression decompressionTAR-ZCVF A.tar.gz a #把a压缩成a. tar.gztar-zxvf A.t #把a. tar.gz extract into a 2. Vim Summary2.1 Vim Replacement#把word_1用word_2替换, g means replace all, c means to replace each one needs to be confirmed2.2

2./dev/shmThe size of the Linux default (CentOS)/DEV/SHM partition is 50% of the system's physical memory, although the use of/DEV/SHM is much more efficient for file operations.However, it is seldom used in the current release software (except for

Solution not found in libstdc ++. so.5 in LinuxWhen installing programs in Linux, we often encounter "libstdc ++. "so.5 cannot be found", for example, "libstdc ++. so.5: cannot open shared object file: No such file or directory ".After searching for

Linux disk partition (2): Delete, delete linux disk partition **************************************** ******************************** ****************  Original works, from "Deep Blue blog" blog, welcome to reprint, reprint please be sure to

Compile and modify xvid1.3.1 in Ubuntu 10.04 CompileDownload the xvid source code http://www.xvid.org/from the xvid official website /. Decompress the source code to the home directory: Tar zxvf xvidcore-1.3.1.tar.gz Go to the decompressed directory

How to Use Sosreport to create a diagnosis report on Linux Sosreport is a command on RHEL/CentOS that collects system configuration and diagnostic information on your linux machine, information such as the running kernel version, loaded modules,

Install JDK 7 in CentOS 6.2 Preface:Java is an object-oriented programming language that can write cross-platform application software. It is a Java programming language and Java platform (JavaEE (j2ee) launched by Sun Microsystems in May 1995 ), A

Docker 1.0.1 can be tested on Ubuntu 14.04 LTS! Docker1.0.1 has officially logged on to "trusty-proposed archive file". We expect SRU to get faster updates on the long-term supported version! We are eager to get your test feedback to ensure that

Install Flacon 1.0.1 on Ubuntu 12.04/14.04 Flacon is an open-source application that uses C ++ and Qt libraries to extract large audio files and individual tracks. The following formats are supported: WAV, FLAC, APE, WavPack, Real Audio (TTA), and

How to quickly set the Ubuntu Kylin 14.04 system update frequency New users may like to keep their systems up-to-date, whether it is security updates, system updates, or application updates. And does not like waiting for a week. Yes, by default,

Add a taskbar for Ubuntu 14.04 If you are a user who has just switched from Windows to Ubuntu, it may take some time to adapt to their different interfaces. In fact, we can also add a Windows-like taskbar for Ubuntu 14.04 to ease the use pain

Install lxml in CentOS Environment:* CentOS release 6.4 (Final)* Python 2.6.6(This is what is known at the beginning of installation) I have not installed Python extension modules before. I checked it. The more convenient way is to use the Python

Install puppet on centos7 1. Install puppet. Note: the client and server versions should be the same as possible. If they cannot be the same, the client version cannot be too old. The server version cannot be lower than the client

Differences between CentOS and windows Many users who have just been familiar with the linux system will use the concepts in windows to understand the linux system. Let's take a look at some of the most common problems for new users in the linux

Install Apache HTTP Server on CentOS7 Install httpd with RPM# Yum-yinstallhttpd // After httpd is installed, the dependent package: aprapr-utilhttpd-toolsmailcap # rpm-qihttpdName: httpdVersion: 2.4.6Release: 18 is automatically installed. protocol:

Strip, lstrip, and rstrip in python 1. strip is the character specified in both ends. If it is not specified, spaces or tabs at both ends are deleted. For example:[Python] view plaincopy Print & quot; 123456 & quot;. strip () The result is 123

Install mongodb in CentOS 1. Download the installation packageWgethttp: // fastdl.mongodb.org/linux/mongodb-linux-i686-1.8.2.tgzDownload Wgethttp: // fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.0.4.tgz Decompress the package after the download