How to Back up the Installed Packages/RPM on Linux

In this article, we will explain the process of creating backups for installing packages/RPM on Linux.

RPM rebuild is a user-friendly tool to generate RPM files from already installed packages, making it accessible to those with no prior RPM building experience. (In the Debian ecosystem, dpkg-repack serves a similar purpose).

For RHEL/CentOS: If it is not installed on your server then, you need to install it.
```
yum install rpmrebuild -y
```
For Ubuntu/Debian:
```
apt-get install rpmrebuild -y
```
Once it’s installed, you are set to start using it!
For example, if the “screen” package is installed on the server, you can utilise the command line to create a backup of the “screen” package:
```
rpmrebuild screen
```
1. Now, a confirmation prompt will appear on your screen, you need to input “Y” and press Enter.
  The package will be backed up in the /root directory. Upon completion, the system will display the location of the generated backup file.
2. To install an RPM file, use the following command line:
```
rpm -Uvh rpm_pack_name.rpm
```
  Note: Make sure that you replace the specific package name with “rpm_pack_name.rpm.”