Back up the list of installed software in the UbuntuLinux System

Every one of us has had the experience of reinstalling the system. After installing the system, how can we quickly reload the software we love? NixCraft provides a useful technique. The principle is to back up the installed software when the system is intact. Then, after reinstalling the system, you can use the previously backed up documents to perform the restoration operation. The following are the implementation steps (Debian is used as an example): 1. perform the backup operation: dpkg -- get-selections & gt; installed-each of us has had the experience of reinstalling the system. After installing the system, how can we quickly reinstall the software we love? NixCraft provides a useful technique. The principle is to back up the installed software when the system is intact. Then, after reinstalling the system, you can use the previously backed up documents to perform the restoration operation. The following describes the implementation steps (Debian is used as an example ):

1. Perform the backup operation: dpkg -- get-selections> installed-software.log, which saves the software installed on the current system to the installed-software.log.

2. Use dpkg -- set-selections <installed-software.log to import the Software List during restoration, and then use dselect tool to install the software.