Linux

1. There are two main categories of data: directory, archive2. There are three main categories of file users: Owner, Group, others3. File properties: R (Readable 4), W (writable 2), X (executable 1)4. Permission format: example [-][rwx][r-x][r--] a

During this time watching the bird's Linux private dishes, write down some important things, convenient for later reviewOne, operating system = kernel + system call1 , kernel : Dealing directly with hardware, responsible for the allocation of

1. Download and install Tomcatwget http://mirror.bit.edu.cn/apache/tomcat/tomcat-8/v8.0.14/bin/apache-tomcat-8.0.14.tar.gzUnzip Tomcat#tar –ZXVF apache-tomcat-8.0.14.tar.gz2, set the road warpUsing the command to edit Vi/etc/profile, add the

(1) Compile and installAfter the root account is logged in, execute the following command in turn:wget Http://www.ohse.de/uwe/releases/lrzsz-0.12.20.tar.gztar zxvf lrzsz-0.12.20.tar.gz && cd lrzsz-0.12.20./ Configure && make && make installThe above

What has the computer done since the power button was pressed and the login was successful? And listen to me carefully.The process can be summarized as follows:A BIOSWhen you press the computer's power key, the computer reads the program stored in

Recently many business systems are Linux LNMP platform installation, repeated installation makes people feel very distressed, carefully delve into the next kickstart. The environment here is Red Hat Linux 5.8 32-bit, the software package in the

Excerpted from http://www.cnblogs.com/xuyingying/archive/2008/10/16/1312584.htmlAfter the installation of Ubuntu suddenly realized that the root password is not set, do not know the password will not be able to enter the root user. To search the

View Linux Memory usage free-MLinux Memory Cleanup: This operation is not required in most cases because the cache memory is automatically freed when needed.It is best to sync a few times, then clean up the memory, there are three levels below, the

Processes and ThreadsReference: http://www.cnblogs.com/blueclue/archive/2010/07/16/1778855.htmlStart by comparing the creation of Linux processes and threads with this:Create a process: (1) call fork (), create a new kernel stack for the child

Run Install.packages ("Rcurl") To get this result > I has some problem in running R-cran ' s demography package. > The hmd.mx function need rcurl. I tried to install Rcurl, but meet the following error: > ********************************************

Uploading files using RZ and SZ commands, need to install LRZSZ Toolkit on remote Linux systemInstall the following:[email protected]/]# Yum install LrzszNote: I use the command is yum, if you are other please find relevant information on the

Linux system boot process details, linux Process details What has been done by the computer from pressing the power key to logon success? Let me explain it in detail. The process can be summarized as follows: I. BIOSWhen you press the computer power

Several Methods for viewing the linux version (1) run the lsb_release command. FSG (Free Standards Group) organizes and develops a Standard LSB (Linux Standard Base) command to view the release information of linux compatibility. [Root @ enmoteam1

Sqlite: multi-threaded database operation "database is locked" solution (2), sqlitelocked In the previous blog "sqlite: multi-threaded database operation" database is locked "solution", we registered a latency function to solve the database lock

Install Ubuntu 12.04 and win712.04 in Windows 1. Download Ubuntu12.04 (ubuntu-12.04-desktop-amd64.iso) 2. Download easyBCD (EasyBCD2.2) 3. Set the startup Item: 1) Place the ubuntu image file in the C root directory, and extract vmlinuz and initrd.

Deployment of Zabbix learning Server/Agent, zabbixagent Recently, the company needs a monitoring system. The previous monitoring system was Nagios. I have never been in touch with Nagios before, but I did some research later. Compared to several

CentOS7 + Tomcat production system deployment1. Prepare an OS account To ensure security, the production system cannot use the root account to run tomcat based on the minimum permission principle. Create a new account tomcat and set the logon

Solution to shutdown tomcat process failure in linux 1. Problem In linux, I found that the./shutdown. sh that comes with tomcat6.0.41 often cannot stop the process, resulting in various problems, which makes me quite disgusted! 2. solution 1:

View CPU and memory load in linux $ Vmstatprocs ----------- memory ---------- --- swap -- ----- io ---- system -- ----- cpu ------ r B swpd free buff cache si so bi bo in cs us sy id wa st 1 4 329796 26040 4528 1 50 160 36 17 2 10 85 3 0 results are

Centos7 ifconfig command The "ifconfig" command is used to configure the network interface of the GNU/Linux system. It displays detailed information about the network interface card, including the IP address, MAC address, and network interface card