How to find all packages emerged(installed) on a Gentoo Linux system

A list of all packages emerged on a Gentoo Linux system can be found in the files:

=List all packages installed=

Method 1

 * execute: equery list "*"

* Searching for * ... [IP-] [ ] app-accessibility/festival-2.1:0 [IP-] [ ] app-accessibility/speech-tools-2.1-r1:0 [IP-] [ ] app-admin/conky-1.8.1-r3:0 [IP-] [ ] app-admin/eselect-1.2.15:0 [IP-] [ ] app-admin/eselect-boost-0.3:0 [IP-] [ ] app-admin/eselect-cblas-0.1:0
 * Example output

Method 2
If you do not have gentoolkit installed (that provides equery) and do not want to install it, you can just use the package "database" in /var/db/pkg:
 * cd /var/db/pkg/ && ls -d */*

.. x11-themes/tango-icon-theme-0.8.90/ x11-themes/tango-icon-theme-extras-0.1.0-r1/ x11-wm/openbox-3.5.0-r1/ x11-wm/twm-1.0.7/ xfce-base/exo-0.6.2/ xfce-base/garcon-0.1.9/ xfce-base/libxfce4ui-4.8.0/ ..
 * Example output

to remove the ending slash for a more standard output try
 * cd /var/db/pkg/ && ls -d */*|sed 's/\/$//' 

Or you can skip changing directorise entirely with
 * ls -d /var/db/pkg/*/*| cut -f5- -d/

Method 3
Using list-gentoo-packages.sh script, displays installs packages and the USE flags
 * scripts website

... x11-libs/Xaw3d-1.5-r1 x11-libs/cairo-1.8.8 +X +opengl +svg -cleartype -debug -directfb -doc -glitz -xcb x11-libs/gtk+-2.16.6 +cups +jpeg +tiff -debug -doc -jpeg2k -test -vim-syntax -xinerama x11-libs/libICE-1.0.5 +ipv6 -debug x11-libs/libSM-1.1.1 +ipv6 +uuid -debug -elibc_FreeBSD x11-libs/libX11-1.2.2 +ipv6 +xcb -debug x11-libs/libXScrnSaver-1.1.3 -debug ...
 * Example Output

=List all packages you directly installed = These are packages that you requested emerge to install. This does not include their dependencies.

List installed Packages (requires root)
 * cat /var/lib/portage/world

... www-plugins/adobe-flash www-plugins/gecko-mediaplayer x11-apps/mesa-progs x11-apps/xrandr x11-base/xorg-server x11-drivers/nvidia-drivers x11-misc/fbpanel ...
 * Example output

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