When I run
sudo apt install top, I get
E: Unable to locate package top
I wonder if it's correct or I'm missing something.
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It is probably installed with the
procps package. It is also common in all *NIX OSes. If you really need to find what it is installed with, install
sudo apt install apt-file && apt-file update
If you run a
which command it will return the folder that it is installed into:
$ which top /usr/bin/top
Then do a search like this:
apt-file search --regexp '/top$'
It will return a list like this:
broctl: /usr/share/broctl/scripts/helpers/top crossfire-maps: /usr/share/games/crossfire/maps/santo_dominion/magara/well/top crossfire-maps-small: /usr/share/games/crossfire/maps/santo_dominion/magara/well/top liece: /usr/share/emacs/site-lisp/liece/styles/top lubuntu-extra-sessions: /usr/share/lxpanel/profile/Lubuntu-Nexus7/panels/top lxpanel: /etc/xdg/lxpanel/two_panels/panels/top procps: /usr/bin/top quilt: /usr/share/quilt/top trn4: /usr/share/doc/trn4/examples/univ/top trn4: /usr/share/trn4/HelpFiles/top
Then all you have to do is match the folder, and that is the package at the beginning of the line.
Or, you could combine the statement as one and it should return a more exact result:
$ apt-file search --regexp $(which top)$ procps: /usr/bin/top
Hope this helps!
If you are using http://packages.ubuntu.com/ to find packages that provide
top, you need to search for
top in the "Search the contents of packages" section. The results of such a search are:
File Packages /etc/xdg/lxpanel/two_panels/panels/top lxpanel /usr/bin/top procps /usr/share/broctl/scripts/helpers/top broctl /usr/share/doc/trn4/examples/univ/top trn4 /usr/share/emacs/site-lisp/liece/styles/top liece /usr/share/games/crossfire/maps/santo_dominion/magara/well/top crossfire-maps, crossfire-maps-small /usr/share/lxpanel/profile/Lubuntu-Nexus7/panels/top lubuntu-extra-sessions /usr/share/quilt/top quilt /usr/share/trn4/HelpFiles/top trn4
In your case, you are most likely looking for the package that provides
/usr/bin/top, which is
Unsurprisingly, the search results are identical to the ones found using
apt-file as mentioned in @Terrance's answer.