A good way to use screen in varying situations

Anyone who uses GNU/screen knows how awesome it is. I use it mainly in two situations:
when i have one terminal connection (ssh) and want to multitask
when i have a process that i never want to lose (rtorrent, irssi) while logging in/out playing with X etc.
Yesterday, i came up with a pretty sweet way (i think) of using screen for both of these situations without
changing current habits (what commands i use day to day)
affecting current keybinds
using any crazy complicated scripts
I thought i'd share this with you guys in case anyone else can find it useful.
basically i set up one main ~/.screenrc which defines all my screen options (shell, term, hardstatus, etc). then i have separate "screenrc_extension" files that only define what tabs to load when screen starts. i then choose which "screenrc_extension" by use of environment variables
> grep ^source .screenrc
source "$SCREEN_CONF_DIR/$SCREEN_CONF"
> echo $SCREEN_CONF_DIR/$SCREEN_CONF
/home/patrick/.screen/configs/main
> cat .screen/configs/main
# example: screen -t [name] [command]
screen -t mail mutt
screen -t music ncmpcpp
#screen -t calendar wyrd
so here you can (hopefully) see that when i run screen in a clean environment it uses the two exported environment variables to call .screen/configs/main and load the tabs i want 90% of the time.
everything else happens in ~/.bashrc:
# dynamically choose which tabs load in screen
export SCREEN_CONF_DIR="$HOME/.screen/configs"
export SCREEN_CONF="main"
alias rtorrent='SCREEN_CONF=rtorrent screen -S rtorrent -D -R rtorrent'
alias irssi='SCREEN_CONF=irssi screen -S irssi -D -R irssi'
the aliases are key.
> SCREEN_CONF=irssi cat $SCREEN_CONF_DIR/$SCREEN_CONF
# example screen -t [name] [command]
screen -t irc irssi
> SCREEN_CONF=rtorrent cat $SCREEN_CONF_DIR/$SCREEN_CONF
# example: screen -t [name] [command]
screen -t torrents rtorrent
so when i type 'rtorrent' the alias will set the environment variable so the right 'screenrc_extension' is used, re attach any running rtorrent-screens here and now, or create one if needed. the -S names the session so that any subsequent -D -Rs can find and reattach it explicitly.
and the same thing happens for 'irssi' (or any other app you'd want to use with this approach).
so i can use the same three commands (screen, rtorrent, irssi) just as always and i get this super-convenient behavior.

Looks cool. I use screen pretty much the same way you do, so your idea fits nicely

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Is it good way of using this?

Hi Experts,
                 Is it using inside loop , select single -
statement, is it good way of using this during performance? Pls suggest me

//Is it using inside loop , select single -
statement, is it good way of using this during performance? Pls suggest me
See
loop at itab.
       select single ...
       endloop.
This is as good as executing the select statement the number of times as the entries in table itab.
You can use this but when it comes to performance then say suppose 10000 entries are there then select is executed 10000 times .
If u do a Sql trace ST05 on the code it will show u in minute(s) .
So if i do a select and read all the entries into an internal table and now compare this with the Read statement then the performance will be high .
Regards,
vijay.

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LabVIEW Champion . Do more with less code and in less time .

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SAPMV50A
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A good way to use screen in varying situations

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