A nice default screenrc

.screenrc-main-example

# GNU Screen - main configuration file 
# All other .screenrc files will source this file to inherit settings.
# Author: Christian Wills - cwills.sys@gmail.com
shell -$SHELL

# Allow bold colors - necessary for some reason
attrcolor b ".I"

# Tell screen how to set colors. AB = background, AF=foreground
termcapinfo xterm 'Co#256:AB=\E[48;5;%dm:AF=\E[38;5;%dm'

# Enables use of shift-PgUp and shift-PgDn
termcapinfo xterm|xterms|xs|rxvt ti@:te@

# Erase background with current bg color
defbce "on"

# Enable 256 color term
term xterm-256color

# Cache 30000 lines for scroll back
defscrollback 30000

# Very nice tabbed colored hardstatus line
backtick 0 0 5 sh -c 'sysctl -n vm.loadavg | tr -d '{}''
hardstatus alwayslastline
hardstatus string '[%{= KW} %H Load avg.: %` %{= Kw}][%= %{= KW}%-w%{+b yk} %n*%t%?(%u)%? %{-}%+w %=%{g}][%{= KW}%c - %d. %M %Y %{= Kw}%{g}]'

# change command character from ctrl-a to ctrl-b (emacs users may want this)
#escape ^Bb

# Hide hardstatus: ctrl-a f 
bind f eval "hardstatus ignore"
# Show hardstatus: ctrl-a F
bind F eval "hardstatus alwayslastline"