qdepends man page on Gentoo

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qdepends(1)			   qdepends			   qdepends(1)

NAME
       qdepends - show dependency info

SYNOPSIS
       qdepends <opts> <pkgname>

DESCRIPTION
       The  qdepends  applet  has  a  couple  different modes.	Normally it is
       geared towards answering the queries "what does package	X  depend  on"
       and  "what  packages depend on X".  Both can further be classified into
       build, run, and post dependencies.

       By default, it will tell you the build time dependencies only (DEPEND).

       Currently, qdepends will only query installed packages.	 There	is  no
       support for querying packages not yet installed (the equery(1) tool can
       do that).

       If there is no answer to your query (i.e. you've asked  for  a  package
       that is not installed, or a version that does not match), then you will
       get back no output.

OPTIONS
       -d, --depend
	      Show DEPEND info (default)

       -r, --rdepend
	      Show RDEPEND info

       -p, --pdepend
	      Show PDEPEND info

       -k <arg>, --key <arg>
	      User defined vdb key

       -Q <arg>, --query <arg>
	      Query reverse deps

       -N, --name-only
	      Only show package name

       -a, --all
	      Show all DEPEND info

       -f, --format
	      Pretty format specified depend strings

       --root <arg>
	      Set the ROOT env var

       -v, --verbose
	      Make a lot of noise

       -q, --quiet
	      Tighter output; suppress warnings

       -C, --nocolor
	      Don't output color

       -h, --help
	      Print this help and exit

       -V, --version
	      Print version and exit

EXAMPLES
       For finding out what a particular package depends on for building,  you
       could do:
	    $ qdepends nano
	    app-editors/nano-2.3.2: >=sys-libs/ncurses-5.9-r1[unicode] sys-apps/file ...
       This  tells  us	that  we  have app-editors/nano-2.3.2 installed and it
       depends on ncurses (among other things).

REPORTING BUGS
       Please report bugs via http://bugs.gentoo.org/
       Product: Portage Development; Component: Tools

AUTHORS
       Ned Ludd <solar@gentoo.org>
       Mike Frysinger <vapier@gentoo.org>

SEE ALSO
       q(1), qatom(1), qcache(1),  qcheck(1),  qfile(1),  qgrep(1),  qlist(1),
       qlop(1),	 qmerge(1),  qpkg(1), qsearch(1), qsize(1), qtbz2(1), quse(1),
       qxpak(1)

Gentoo Foundation		   Mar 2014			   qdepends(1)
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