Elogv is a simple tool written in Python that allows you to easily read
portage elog files. To launch it, type on a console:

$ elogv

Inside the program, you can use these keys:

 - Down arrow -> Scroll the list of files down by 1 unit
 - Up arrow -> Opposite of Down arrow
 - Page Down -> Scroll the list down by 10 units
 - Page Up -> Opposite of Page Down
 - End -> Go to the last file of the list
 - Home -> Go to the first file of the list
 - t -> Order the list of files by date, most recent on top
 - a -> Order the list of files alphabetically
 - r -> Reverse the list of files
 - SpaceBar -> Scroll the selected file
 - h or F1 -> Show the help screen, press Page Up/Down to scroll up and down,
              h and F1 again to hide
 - d -> Remove log files, usage is similar to vim "d" command, here are
        same examples:
        da -> Remove all files
        de -> Remove from selected item to the end of the list
        ds -> Remove from selected item to the start of the list
        d1d or dd -> Remove selected file only
        d4d -> Remove 4 files starting from selected one
 - q -> Quit

Note:

To use this software you need the portage elog system configured on your
/etc/portage/make.conf, this is a simple configuration:

---- /etc/portage/make.conf
# Logging
PORTAGE_ELOG_CLASSES="warn error log"
PORTAGE_ELOG_SYSTEM="save"
----

For other details see /usr/share/portage/config/make.conf.example