how to update an individual app through terminal

I want to update Firefox alone without updating all applications. And I want to do it through terminal. Is that possible? Because I have a slow internet connection.

I'm using Ubuntu 15.04 with a GNOME desktop environment.

4 Answers

To only upgrade Firefox on its own do:

sudo apt-get dist-upgrade firefox

or

sudo apt-get upgrade firefox

from man apt-get

upgrade upgrade is used to install the newest versions of all packages currently installed on the system from the sources enumerated in /etc/apt/sources.list. Packages currently installed with new versions available are retrieved and upgraded; under no circumstances are currently installed packages removed, or packages not already installed retrieved and installed. New versions of currently installed packages that cannot be upgraded without changing the install status of another package will be left at their current version. An update must be performed first so that apt-get knows that new versions of packages are available.
dist-upgrade dist-upgrade in addition to performing the function of upgrade, also intelligently handles changing dependencies with new versions of packages; apt-get has a "smart" conflict resolution system, and it will attempt to upgrade the most important packages at the expense of less important ones if necessary. The dist-upgrade command may therefore remove some packages. The /etc/apt/sources.list file contains a list of locations from which to retrieve desired package files. See also apt_preferences(5) for a mechanism for overriding the general settings for individual packages.

To upgrade only Firefox from the terminal type:

sudo apt upgrade firefox 

The above command works without the --only-upgrade option. If your Firefox is already the latest version the command will not install any new package, and you will get the following message:

firefox is already the newest version.

sudo apt-get install firefox

this will only upgrade firefox to the newest version.

for details, use man apt-get and go to install section :

install

This is also the target to use if you want to upgrade one or more already-installed packages without upgrading every package you have on your system.
Unlike the "upgrade" target, which installs the newest version of all currently installed packages, "install" will install the newest version of only the package(s) specified.
Simply provide the name of the package(s) you wish to upgrade, and if a newer version is available, it (and its dependencies, as described above) will be downloaded and installed.

You can update an application by using the command line using the following command:

$ sudo apt upgrade <app name>

If there is no update in the system’s repositories, follow this steps:

You can install Snap package manager to install new applications releases.

To install it, follow this command:

$ sudo apt install snapd

Then you can install applications from it by this command:

$ sudo snap install <app name>

Note: that not all applications are present in it.

the applications are always the latest releases

Snap site is at in these URL:

And to inquire about Snap's orders, use command:

$ man snap