Notes

[apt, dpkg] Packages

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Commands

To get a list of packages installed locally do this in your terminal:

1apt list --installed

or

1dpkg -l

or

1 dpkg --get-selections | grep -v deinstall

(The -v tag “inverts” grep to return non-matching lines)

To get a list of a specific package installed:

1apt list --installed | grep postgresql

or

1dpkg --get-selections | grep postgresql

To save that list to a text file called packages on your desktop do this in your terminal:

1apt list --installed | grep postgresql > ~/Desktop/packages

or

1dpkg --get-selections | grep -v deinstall > ~/Desktop/packages

To find information about a package you are interested in installing:

1apt info postgresql