design of unix operating system

Reprint Link: http://blog.csdn.net/tskyfree/article/details/8121951First, the concept:line feed ' \ n ' and carriage return ' \ R '(1) NewLine character is another line---'\ n' 10 newline (newline)(2) The carriage return is back to the beginning of the line---'\ r' 13 return car (return)So we usually write the file carriage return should be exactly called carriage return line breakSecond, the application:(1) in MS-DOS and windows in Microsoft, use "carriage return CR (' \ R ')" and "newline LF (

Under various operating systems of Unix and Linux, each file (the folder is also treated as a file) is set to read, write, and run. For example, when I use the ls -l command to list the file table, I get the following output: -rw-r--r-- 1 bu users 2254 2006-05-20 13:47 tt.htm Rw from the second character - means that the user bu has read and write rights, no right to run, and then r-- means that the user gr

collection of system software that controls the operation of other programs, manages system resources, and provides users with a user interface. The operating system is tasked with basic tasks such as managing and configuring memory, prioritizing system resource supply and

the general operating system (such as Windows, Unix, Linux, and so on), and we will describe the main features of the real-time operating system by comparing the differences between the two operating systems.In our daily work lea

Java performance analysis tools, Part 1: Operating System Tools, java operating systemsIntroduction The premise of performance analysis is that the running status of the application and the running environment of the application are displayed more directly in a visual manner. How can we achieve this visual display? We need to use the Integrated Program monitoring

"original" How to install the Linux operating system on a computer with a Windows operating system installedOne thing you have to know I believe most personal computers in China have Windows installed when they buy them, and everyone is used to Windows, and many people take it for granted that the computer is Windows

usually the closest to the hardware of a layer of system software, it is the hardware to transform the bare metal into a fully functional virtual machine, making the use and management of computer systems more convenient, more efficient use of computing resources, the upper layer of the application can be more than the hardware provides more support. The operating syst