Linux file organization-chaotic order

Linux file organization-chaotic order in linux, everything is regarded as a file, whether it is a directory or a device. Therefore, if you want to be familiar with Linux, you must have a certain understanding of the nature and organizational structure of files. In Linux, files are organized into bytestream, which is advantageous...
Linux file organization-chaotic order in linux, everything is regarded as a file, whether it is a directory or a device. Therefore, if you want to be familiar with Linux, you must have a certain understanding of the nature and organizational structure of files. In Linux, files are organized into byte streams, which facilitates data flow and transmission. For byte streams, we can understand the concept in C ++. the essence of C ++'s standard input/output iostream and file stream fstream is byte streams. Linux files can only be described in disorder at first glance. Among them, the most worrying thing is that the installation of programs in linux does not give a folder like www.2cto.com in windows, and even specifying a path is futile. However, it is often difficult to clean the files during uninstallation. Especially when the source code package is installed, there is no uninstallation command (at least I am not Baidu ). In fact, as long as you get down to it and take some time to understand the organizational structure of these files, you will find chaos and self-order. In Linux, many directories are characterized by "static", which is not involved in the use of common users. The following lists the features of these features. Their functions are dedicated by default and do not change frequently. Several other directories are the key directories involved in Linux, so I have to have a deep understanding of them. When using commands, it is necessary to put/sbin,/usr/sbin,/bin, and/usr/bin in a "three-light" policy. It is difficult to use bash without scanning it once, linux makes your work easier and cannot be implemented. The installation path of the application cannot be avoided in any way? Don't worry. try the following operations. # Display the location of the executable file (display the location of the executable file) $ which software_name www.2cto.com $ whereis software_name # shows the location of all files related to the software $ locate software_name. bash is usually located in several directories.

After the software is installed, its related files will be scattered in many default directories of the system. the executable files of the program are generally in the/usr/bin directory, as long as the file is deleted, it can be uninstalled. As for other files, you can use locate to locate and manually delete them. the speed depends on the degree of command play. (I only know this stupid method, but I don't know if there is a simple method to completely uninstall it ?) In linux development, only/usr is involved. The/usr directory is quite large. The system command file, various library files, and the updated www.2cto.com source file package are almost all in this directory, and they also change frequently. In fact, for C/C ++ programming, the header files and library files involved are only in this directory. Therefore, the file structure in Linux is not as complicated as you can see. For common users, it is enough to familiarize themselves with the/usr directory, which is not only available in Linux.