Linux memorandum (basic operations)

1. for software that is manually compiled and installed, you can use make uninstall to uninstall it. However, not all software provides such a process. The compilation and installation process is generally

1)./configure various compilation and installation parameters and check system parameters.

2) Make CompilationSource code, Generate many installation files

The following error may occur during make: cannot restore segment prot after reloc: Permission denied

One solution is to change the original SELinux = enforcing to SELinux = Disable under the/etc/sysconfig/SELinux file, and then restart.

For the other method, see here http://blog.csdn.net/touch25/archive/2009/03/02/3948266.aspx

3) make install the file generated in the previous step

Based on the preceding three steps, you can directly delete all files in the installation directory if you want to uninstall the installation. However, the reinstallation may cause problems, especially when the configuration parameters are different during the reinstallation, because the files generated according to the configuration parameters already exist, even if the re-installation of make is not necessarily overwritten, therefore, you should save the original compressed package (* .tar.gz), delete the original decompressed folder, decompress it again, and then reinstall it. However, if the framework and platform are installed, such software will provide header files and library files to system developers. In this way, these files will be installed to/usr/local/include, in the/usr/local/lib directory, such software cannot be directly deleted and uninstalled. Please try make Uninstall.