Every now and then, there arises the necessity to find out what version of a particular package is running on a CentOS, RedHat or Fedora Linux system.
As is to be expected, the commands to find out which version of a package is installed on RedHat, CentOS and Fedora are different from the commands for Ubuntu.
Again, there are multiple ways to get the version of packages installed on CentOS, RedHat and Fedora.
Let’s check out five simple methods on the command line.
1. The first command line option that comes to mind when checking for the version of an application or package on CentOS is yum info package_name.
$ yum info PACKAGE_NAME
Let’s see what version of the clamtk anti-virus software is installed on our CentOS 7 desktop.
$ yum info clamtk Installed Packages Name : clamtk Arch : noarch Version : 5.15 Release : 1.el7 Size : 1.3 M Repo : installed
2. The yumdb method provides more information compared to the previous option.
$ yumdb info PACKAGE_NAME
With yumdb info, you not only get the package version number but other details such as checksum of the package (and algorithm used to produce it, such as SHA-256), repository, which user installed it, or whether it landed on the system as a dependency.
Let’s check out the yumdb command with an example.
Why not see what version of python is installed on our Linux system.
$ yumdb info python python-2.7.5-16.el7.x86_64 checksum_data = b03c388fe3fe1c711249564c96902852d129a0f4faf8a27accd660bf42ebab4e checksum_type = sha256 from_repo = anaconda from_repo_revision = 1404557011 from_repo_timestamp = 1404557037 installed_by = 4294967295 reason = dep (and more)
3. There’s another easy to remember option, rpm -qa which queries all currently installed packages.
$ rpm -qa PACKAGE_NAME
One of my favorite newsreaders on Linux is quiterss.
In the below command, we’ll see which version of quiterss is installed.
$ $ rpm -qa quiterss quiterss-0.17.4-1.el7.x86_64
4. Another way to find out version of a package is to grep it with yum list installed.
$ yum list installed | grep PACKAGE_NAME
In the following command, I’m going to check which version of the partitioning software gparted is installed on my CentOS 7 system.
$ yum list installed | grep gparted gparted.x86_64 0.19.1-5.el7 @epel
5. The final command rpm -qi is a muscleman when it comes to spitting out details on the version of an installed package!
More comprehensive than rpm -q or rpm -qa, rpm -qi displays package information including name, description, release, size, build date, install date, vendor, and other miscellaneous data.
$ rpm -qi PACKAGE_NAME
Let’s demonstrate use of rpm -qi with a concrete example.
Like most of you, I too have the FTP program Filezilla installed on my CentOS 7 system.
Here’s how to check the version of Filezilla installed on a CentOS system.
$ rpm -qi filezilla Name : filezilla Version : 126.96.36.199 Release : 1.el7 Architecture: x86_64 Install Date: Mon 23 Mar 2015 09:39:29 AM EDT Group : Applications/Internet Size : 12642204 (and more)
As we’ve demonstrated in this post, there are many ways to find out the version of an installed package on CentOS, RedHat or Fedora.
Use the method that you’re most comfortable with.