Follow-up on screen profiles

After reading Justin's proposal on screen profiles and Nicolas' answer on automatic screen launch, I've worked a bit on a profile for my company. I added a few things to it:

• "hostname -f" after the release. %H provides "hostname -s" but I preferred a fqdn since we have many machines named the same.
  
• load average (%l) after updates-available
  
• number of users (taken from `uptime`)
  
• uptime (taken from `uptime`)

with some nice colors. For thoses interested, here are the scripts :


$ cat load-average
#!/bin/sh

uptime | sed -e "s/.*load average: //" | tr -d " " | tr "," " "

$ cat nb-users
#!/bin/sh

uptime | sed -e "s/.*, *\(.* users\), .*/\1/"

$ cat release-short
#!/bin/sh

lsb_release -i -c -s | tr "\n" " "

$ cat uptime
#!/bin/sh

uptime | sed -e "s/.* up *\(.*\), *.* users, .*/\1/"



I added the following lines to the "common" profile :

backtick 105 5 5 /usr/share/screen-profiles/bin/load-average
backtick 106 10 10 /usr/share/screen-profiles/bin/nb-users
backtick 107 10 10 /usr/share/screen-profiles/bin/uptime
backtick 108 10 10 /bin/hostname -f
backtick 109 3600 3600 /usr/share/screen-profiles/bin/release-short



and this is my hardstatus line :

hardstatus string '%{+b Wr} (*) Hebex %{+b wk} %100`%{= Wk}|%{+b Gk}%108`%{= Wk}|%= |%{+b rW}%101`%{= Wk}|%{+b Ck}%l%{= Wk}|%{+b Mk}%106`%{= Wk}|%{+b bW}%107`%{= Wk}|%{+b gW}%103`%{= Wk}|%{= wk}%Y-%m-%d %c:%s'



Then I tried to connect from my Acer Aspire One and I realized that the line didn't fit on my screen (the 9" screen that is...). So I made a short profile for this purpose, by using %H instead of "hostname -f" and making a release-short function that only displays `lsb_release -i -c -s | tr "\n" " "`. I made this a new profile. Here is the hardstatus line :


hardstatus string '%{+b Wr} (*) Hebex %{+b wk}%109`%{= Wk}|%{+b Gk}%H%{= Wk} %=|%{+b rW}%101`%{= Wk}|%{+b Ck}%l%{= Wk}|%{+b Mk}%106`%{= Wk}|%{+b bW}%107`%{= Wk}|%{+b gW}%103`%{= Wk}|%{= wk}%Y-%m-%d %c:%s'



Then I wondered how I could load it automatically when I connect from my notebook. So I tweaked a bit Nicolas' lines and made a .screen_bashrc which I source in my .bashrc :



if [ "$PS1" ]; then
# Set screen-profile to short if we're on a notebook
# to normal otherwise
if [ "x${LC_NOTEBOOK}" = "xyes" ]; then
ln -sf /usr/share/screen-profiles/profiles/hebex-short.screenrc $HOME/.screenrc-profile
else
ln -sf /usr/share/screen-profiles/profiles/hebex.screenrc $HOME/.screenrc-profile
fi

if [ "$TERM" != "screen" ]; then
#screen -D -R
#Update 2008 Dec 16: -xRR is way better
screen -xRR
fi
fi



On my notebook, I added a "export LC_NOTEBOOK=yes" to my .bashrc, so whenever I connect to a machine using the notebook, the short screen profile is automatically selected instead of the normal one, and I can see all infos on my small screen :)

Note: I chose LC_NOTEBOOK because LC_* variables are usually listed in AcceptEnv in /etc/ssh/sshd_config to export language settings, so I was pretty sure that the variable would be exported fine.