Linux

Create a script for quick logon in windows:1. Create a file named "ftp. bat"2. The script content is as follows:@ Echo onCd C: \ Windows \ system32Ftp.exe 192.168.56.101 #########################1. Install the vsFTP Server:[Root @ localhost yum.

1. Permission r: 4, w: 2, x: 1 The rwx permission of the file is for the file content, and the rwx permission of the directory is for the files in the directory. The specific meaning of permissions on directories: R: Permission to read the list

4. Process Control Kill: the syntax kill [-signal] PID sends a specific signal to the process. The default value is 15 (termination) Kill-l: Lists All signals that can be passed by kill. 1: restart the process 2: relative to ctrl + c 9: Force

I. Device Files Linux follows the Unix style and treats all devices as a file. There are two types of device files: Block Device Files (B): such as hard disks and optical drives Character device file (c): such as serial port, keyboard Device Files

Iostat: Report Central Processing Unit (CPU) statistics and input/output statistics for devices and partitions [root@billtest ~]# iostatLinux 2.6.18-194.el5 (billtest) 01/09/2014avg-cpu: %user %nice %system %iowait %steal %idle

Data transmission during Linux Command Execution is as follows: 1) standard input (stdin): the code is 0, use 2) standard output (stdout): the code is 1, use> or>; 3) standard error output (stderr): Code 2, Use 2> or 2>; > Indicates writing

Sometimes it is difficult to install git in Linux to use yum to Make yum install get I found some methods on the Internet and recorded them to prevent future forgetting. Wget

For Linux users, you can use the su and sudo commands. The Use Cases of these two commands are different.Su if your current identity is root, you can use the su command to switch to any other user (without a password), as shown below: [root@lx200 ~]#

The main (physical) differences between logging on to the system through a serial terminal and logging on to the system through a network are:When you log on through the network, the connection between the terminal and the computer is not a point-to-

Modify the default linux Startup level Modify the system startup level: Modify the default system startup status to 3 + users.In Linux, there are 7 startup levels. The default value is X-Window, such as Windows Window mode. in Linux, we generally

Recently, the website server has a high access volume, which often causes frequent server crashes. Normally, restart the server, ./Httpd. sh stop./httpd start is complete. However, due to frequent operations such as this, the website cannot be

Linux O & M-essential professional knowledge: von nuoman System Abstract: Von noriman architecture, also known as the Princeton structure, is a computer design conceptual structure that combines program instruction memory and data storage. It

I. Check files Use ls-l to view the detailed information of the object in long mode, contains the disk space used by the current directory, file type, File Permission, hard connections, file owner, file group, file size, change time, and file name.

I. Filter There are three types of application tools in Linux: Interactive tools Filter Editor A tool that can accept data and filter and output data is called a filter. There are input source and output objects for filters and

Develop a scheduled task today and add it to the cron list. However, there is a problem. You need to enter the Database Password during script execution: Mysql-u root-p After running the above Code, a message is displayed: Enter password: After

Shell variables are divided into environment variables and custom variables. The difference between the two variables lies in whether the variables can be used by the process. See one of the following: If it is an environment variable, the

1. Background Source insight is a source code viewing tool. The blogger is ready to use this tool to view the android source code.2. Installation 1. sudo apt-get install wine (install wine and use wine to install source insight)2. Download The

Http://kb.cnblogs.com/page/196876/   For a long time, I failed to write something well. Some time ago, I had to go on a business trip for more than a month due to the project's needs. During this period, I worked overtime and worked overtime until

Any process can obtain its actual and valid user IDs and group IDs. But sometimes you want to find the user login name that runs the program. We can callGetpwuid (getuid ()),But what if a user has multiple login names and these login names

Any process can call the times function to obtain the wall clock time, user CPU time, and system CPU time of itself and its final sub-processes.(The meaning of the three time can be referred to: http://www.cnblogs.com/nufangrensheng/p/3495526.html ).