Linux

When you specify a numeric value for a variable in bash, you can enclose the mathematical equation in the dollar sign and square brackets ($[operation])!Example 1:[email protected] ~]# cat test5.sh#!/bin/bashVar1=$[1 + 5]echo $var 1[Email protected]

The dynamic runtime is widely used under Windows and Linux. Windows is usually DLL files under Linux for so files. However, for a deployment program, the two systems look different when they find dependent runtime files. For Windows, look for the

Compiling libsphinxclientSphinx Libsphinxclient in the API folder in the source packageCd/root/api/libsphinxclient/./configure make &&make InstallCompiling Sphinx ExtensionsDownload extension Files: Http://pecl.php.net/package/sphinxTar zxvf sphinx-

The SVN service is started and can be checked out using commands on the server, but it cannot be checked out on other computers, always prompting:"Svn:can ' t connect to host ' *.*.*.* ': Because the connecting party did not reply correctly or

Haven't updated the blog for a long time, say the system environment:Uname-alinux REDHAT6 2.6.32-279.el6.x86_64 #1 SMP Wed June 18:24:36 EDT x86_64 x86_64 x86_64 gnu/linuxTomcat Java Process number 1243[[Email protected] proc]# ps -el|head -1  pid   

In the maintenance process of Linux, often encounter disk space full situation, if the original disk planning is not handled well, the problem of processing disk space is a more troublesome problem, when the installation system is directly disk

210.72.145.44 (China National Timing Center Server IP address)Server ntp.sjtu.edu.cn (Shanghai Jiaotong University Network Center NTP server address)================================Other universities NTP Address: Server list:s1a.time.edu.cn Posts

Never met before ...Operating environment: Enter the C program in the Linux-brought text editor, compile and run in the shell, and look directly at the code and running results.First code: #include #include #include #define N 2int main (){int

Bash shell uses environment variables to store information about shell sessions and the work environment. Environment variables fall into two categories: Global variables Local variables Global environment variables are visible not

Vmstat 2 3[[email protected] ~]# Vmstat 2 3 (View system Information 2 seconds once total 3 times)Memory CPUprocs-----------Memory-------------Swap-------io------System-------CPU------R b swpd free buff cache si so bi bo in CS us sy ID WA St1 0 0 808

Linux and Windows Sync data, rsync server Cwrsync clientLinux ServerGeneral systems are self-contained rsync, if not mounted on the system disk to install themselves, installation is very simple no, I said moreVi/etc/rsyncd.confUID = DaemonThis user

Linux assigns users no login permissions, while linux does not. Linux assigns no login permission to users Sudo shortdo username ALL = (ALL) NOPASSWD: ALL How to assign permissions to different users in linux Mkdir/home/da

Linux0.11 Kernel Analysis-initialization program (init), linux0.11init1. Overview There is only one main. c file in the init/directory of the kernel source code. After the system executes the head. s program in the boot/directory, the execution

Getting started with Linux: Installing DeVeDe on Linux to create a video DVD Q: I want to create a video DVD from an MP4 movie file. Is there any DVD creation tool I can use to create a video DVD in a Linux desktop environment? DeVeDe is an

Install the latest Wine development version on the RedHat and Debian-based systems. Wine is a very popular and powerful open-source application on the Linux platform. With it, we can run Windows applications and games perfectly on the Linux platform.

Use diff in GNU Linux to generate patches and patch Patches In GNU Linux system programming, diff and patch generation patches and patching are often used. If you do not know this, you will find it difficult. After you have done this, you will find

Configure iptables in CentOS6.6 If iptables is not installed, you can directly use yum to install it. yum install -t iptables Check the status of the iptables service, service iptables status If "iptables: Firewall is not running" appears, it

Linux tree Command garbled, linuxtree command garbled Garbled characters appeared when running the tree Command in Linux today. I checked it online and said we need to use tree-charset ASCII, which is forced to use ASCII characters. In this way,

Search for and delete objects at a specified time in CentOS Find the files modified in the last 10 days of the system. Find.-mtime-10-exec ls-l {}\; You can replace ls with rm When deleting the ls. Some common parameters and descriptions are

How to view and kill botnets in CentOS The server expired yesterday. Because the previous server had a small space and could not meet the current service requirements, a new server was purchased and is currently being debugged and installed!