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I have a headless FreeBSD server where some port has installed tons of X11-related packages. I would like to find out what these ports are so I can get rid of the unwanted X-related packages. Is there a way to figure this out?

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2 Answers 2

up vote 4 down vote accepted

pkg_info answers questions like this. With the -R option it expects a name of an installed port and will display all ports that depend on that port:

pkg_info -R libXfont-1.4.3,1

You can use wildcards to avoid specifying the name with the version number:

pkg_info -R libXfont-\*

Note that this does not work recursively, and thus you need to do pkg_info -R again for each port in the resulting list until you get to the bottom of things.

Note that on servers it is often a good idea to put the following in /etc/make.conf:

WITHOUT_X11=yes

That will make most (all?) ports to skip dependencies to any X11 related stuff.

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Lovely! Thanks. –  Chinmay Kanchi Aug 6 '11 at 17:17
    
@ChinmayKanchi: In this community proper etiquette for expressing thanks is to upvote and accept answers. Since everything is kept as a permanent archive of question/answer pairs you don't need to clutter things up with thank you notes. Comments should only be used to add to or discuss the content of posts. –  Caleb Aug 7 '11 at 7:08

The current accepted answer is out of date. FreeBSD has replaced its legacy packaging tools with pkgng.

Here's the new way to query the reverse-dependencies of a package:

pkg info -r <pkg name>

Example:

root@server:/usr/ports # pkg info -r python27
python27-2.7.6_4:
        python2-2_2
        talloc-2.0.8
        tevent-0.9.18
        tdb-1.2.12,1
        ldb-1.1.16
        glib-2.36.3_2
        xcb-proto-1.9
        gobject-introspection-1.36.0_2
        samba4-4.0.13
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