Ubuntu Package search tools [Guide]

How do I search for a package in Ubuntu?
What package management tools does Ubuntu use?
How do I search for packages with apt-get?
How do I use Ubuntu package manager?
How do I check my packages in repository?
How do I find packages in Linux?
What are Ubuntu packages?
How do I change apt-get repository?
What are the three families of Linux package manager?
How do I list apt repositories?
Where is apt cache stored?
How do I install a specific version of APT-get?

How do I search for a package in Ubuntu?

How do I see what packages are installed on Ubuntu Linux?

Open the terminal application or log in to the remote server using ssh (e.g. ssh user@sever-name )
Run command apt list --installed to list all installed packages on Ubuntu.
To display a list of packages satisfying certain criteria such as show matching apache2 packages, run apt list apache.

What package management tools does Ubuntu use?

The default package manager for Ubuntu is apt-get. Linux operating systems use a software tool known as a package manager to make sure the software is correctly installed and up-to-date. It also keeps a current list of available software, stored externally in a database called a repository.

How do I search for packages with apt-get?

To find out the package name and with it description before installing, use the 'search' flag. Using “search” with apt-cache will display a list of matched packages with short description. Let's say you would like to find out description of package 'vsftpd', then command would be.

How do I use Ubuntu package manager?

How to use apt Package Manager on Ubuntu Command Line

Update the package repositories.
Update installed software.
Search for available packages.
Get the source code for an installed package.
Reinstall a software package.
Remove a software from your system.

How do I check my packages in repository?

If the package was installed recently, you can look in /var/cache/yum. Note that a yum clean [packages|all] will clear out the cache directory. However, on machines where yum info [package] does not display "From repo : ", as indicated by 'theotherreceive', it is because it is not in the file primary.

How do I find packages in Linux?

In Ubuntu and Debian systems, you can search for any package just by a keyword related to its name or description through the apt-cache search. The output returns you with a list of packages matching your searched keyword. Once you find the exact package name, you can then use it with the apt install for installation.

What are Ubuntu packages?

An Ubuntu package is exactly that: a collection of items (scripts, libraries, text files, a manifest, license, etc) that enable you to install a piece of software ordered in such a way that the package manager can unpack it and put it into your system.

How do I change apt-get repository?

Step 1: Update Local Ubuntu Repositories. Open a terminal window and enter the command to update repositories: sudo apt-get update. ...
Step 2: Install the software-properties-common Package. The add-apt-repository command is not a regular package that can be installed with apt on Debian / Ubuntu LTS 18.04, 16.04, and 14.04.

What are the three families of Linux package manager?

5 Best Linux Package Managers for Linux Newbies

DPKG – Debian Package Management System. Dpkg is a base package management system for the Debian Linux family, it is used to install, remove, store and provide information about . ...
RPM (Red Hat Package Manager) ...
Pacman Package Manager – Arch Linux. ...
Zypper Package Manager – openSUSE. ...
Portage Package Manager – Gentoo.

How do I list apt repositories?

list file and all files under /etc/apt/sources. list. d/ directory. Alternatively, you can use apt-cache command to list all repositories.

Where is apt cache stored?

APT cache files:

APTs cached files are located in: /var/cache/apt/archives/

How do I install a specific version of APT-get?

Run the following command to install a specific version of a package Firefox in our example. So the code becomes “sudo apt install firefox=45.0. 2+build1-0ubuntu1” which needs to be executed. -s is the parameter to simulate the installation so that no erroe is encountered during the installation process.