What’s the Difference Between apt and apt-get?
Both apt and apt-get are command line tools. You can use them to manage software packages like applications and libraries.
Debian-based Linux operating systems use the Advanced Package Tool (APT) to manage Linux software packages.
The apt command line tool provides a higher-level user interface for end users with intuitive commands, resulting behaviors, and security features.
In contrast, the command apt-get is a low-level interface that communicates more closely with core Linux processes.
The apt command is a more user-friendly package manager than apt-get.
What are the similarities between apt and apt-get?
Both apt and apt-get are package manager tools for Debian-based Linux distributions (or distros) such as Debian, Ubuntu, Linux Mint, and elementary OS. Similar tools exist, like aptitude and synaptic, although apt-get and apt are the system default.
Next, we describe similarities between apt and apt-get.
Interface
Both the apt command line utility tool and the apt-get command line utility tool are accessible via the Linux command line interface (CLI). To use the Linux CLI, open a terminal window or virtual terminal window.
Documentation
For the official overview of the apt utility and apt-get utility, enter apt or apt-get at the command prompt. This gives you a list of the most common apt commands and apt-get commands.
For example, apt update or apt-get update update the list of available software packages from the official repositories. The apt command and apt-get command also have options listed after them. For example, apt update --quiet provides a less detailed print output of the apt update command to the terminal.
The most common tasks in apt and apt-get are to install, update, and remove software packages. Software packages may be applications, libraries, utilities, and tools.
The following table shows common command syntax between the two.
apt
apt-get
apt install <package_name>
apt remove <package_name>
apt purge <package_name>
apt upgrade <package_name>
apt update
apt-get install <package_name>
apt-get remove <package_name>
apt-get purge <package_name>
apt-get upgrade <package_name>
apt-get update
Key differences: apt vs. apt-get
The difference between apt and apt-get is not just that apt is a newer version of apt-get. The apt command was designed as a more user-friendly alternative to apt-get, combining the functionality of multiple package management tools for user convenience.
Next, we discuss other differences between apt and apt-get.
Release dates
In 1998, apt-get was released with the Debian 2.0 (Hamm) distribution, while apt was released in 2014 with the Debian 8 (Jessie) distribution. After 2014, apt replaced apt-get as the default package manager tool for all Debian-based Linux distros.
Search capabilities
Search for a package by name by using the apt search <package_name> command. This command gives a detailed description of all packages containing the searched package_name. This operation was not possible with apt-get. Instead you had to use the apt-cache command.
Dependency resolution
Any software package typically comes with a list of software dependencies, such as libraries or tools it needs to operate correctly. You have to install all dependencies before you can install the package.
Both apt and apt-get handle dependency resolution, however apt is far superior. It determines complex dependency chains where it installs packages in the correct order and recommends suggested packages to install.
Package versions on the file system
By default, the apt upgrade command removes old versions of installed or upgradeable packages on the system that are no longer needed when upgrading.
In contrast, the apt-get upgrade command does not. This efficiency can make apt upgrade better for freeing up system memory.
Printed outputs to the terminal
Both apt-get and apt print status information to the terminal, giving insight into what the system is doing after the input command. The apt command provides slightly more detailed information to the user, including a progress bar on each task.
How does apt replace apt-get?
The apt tool is now the default package management utility for Debian-based Linux distros, and it’s replaced both apt-get and apt-cache. Most apt-get commands are written the same in each new apt command.
However, in the past apt-get had to be used alongside apt-cache for certain commands. The following table shows how these few commands are now ported across to apt.
apt-cache...........................apt-get.................................apt
apt-cache search----------Not supported---------------apt search
apt-cache show------------Not supported----------------apt show
apt-cache policy------------Not supported---------------apt policy
You don’t need to replace apt-get commands with apt commands in any existing Linux scripts. They still operate as expected, and apt-get is still supported. Some of the functionality of the older apt-get commands is changed slightly in apt, so keeping apt-get in scripts helps ensure correct operations.
The average Linux user should use apt instead of apt-get unless the project or environment requires it.
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is not a complete explosition about Apt under Puppys. Puppys are not the distro they are woofed from. As this discourse reveals, it may sometimes be necessary close synaptic in order for Apt to accomplish your objective, 
