Most of the time there are packages (in repositories and GitHub) that are ready to use. But sometimes packages are not available in binaries (ready to install on the go) we have to download the source code and build from scratch. This is not an issue if you have time but for increasing Productivity.
Here is where Alien (package converter) comes into place. If an application like Zenmap (Nmap should be pre-installed) is readily available in .rpm form instead of .deb. We can convert that .rpm package to .deb on the go using alien, and we could install zenmap directly.
Installing the alien tool
Alien is available in most of the repositories but, In case you don’t have it you can find and install it from alien-git here. Here is the list of commands to be executed for the installation of the tool.
In the land of Linux, there are two main package managers: RPM and DEB. RPM is used by Red Hat-based distributions such as Fedora and CentOS, while DEB is used by Debian-based distributions such as Ubuntu and Linux Mint. Both RPM and DEB are used to install, update, and remove software packages on Linux computers.
RPM files are primarily used on Red Hat-based distributions (CentOS 7, RHEL, Fedora Linux). To install RPMs on Ubuntu, Fedora, or Debian, you may need to convert them to DEB format using tools like alien.
Download the . rpm file required for performing an RPM-based installation to a directory of your choice. For example, download the oracle-database-ee-18c-1.0-1. ...
Install the database software using the yum localinstall command. Copy.
A file with the RPM file extension is a Red Hat package manager file that's used to store installation packages on Linux operating systems. These files provide an easy way for software to be distributed, installed, upgraded, and removed since they're "packaged" in one place.
Open a terminal and navigate to the location of the . rpm file.
Execute the following command with superuser permissions: rpm -i filename .rpm. This installs the product to the following default location - /opt/microfocus/VisualCOBOL.
RPM is the installation package format for Red Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES) distributions.DEB is the package format for the Ubuntu distribution.
We can install the RPM package with the following command: rpm -ivh <package name> . Note the -v option will show verbose output and the -h will show the hash marks, which represents action of the progress of the RPM upgrade. Lastly, we run another RPM query to verify the package will be available.
How to Install RPM Package Without Dependencies. To install an rpm package without dependencies, you can use --nodeps option, which will forcefully install an RPM package without checking or resolving dependencies.
The main tool for converting RPM to DEB is alien . Alien is a program that converts between different Linux package formats, including RPM, DEB, and others.
The easiest way to extract the contents of RPM packages is to combine the rpm2cpio and cpio commands. This gives a command-line way to unpack an RPM in the current directory to get at the package contents, ignoring the package's metadata and dependencies.
Open a terminal and navigate to the location of the . rpm file.
Execute the following command with superuser permissions: rpm -i filename .rpm. This installs the product to the following default location - /opt/microfocus/VisualCOBOL.
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