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2011-03-12 - Confoo 2011 presentation
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Functions

Screensaver

Terminal - Screensaver
alias screensaver='for ((;;)); do echo -ne "\033[$((1+RANDOM%LINES));$((1+RANDOM%COLUMNS))H\033[$((RANDOM%2));3$((RANDOM%8))m$((RANDOM%10))"; sleep 0.1 ; done'
2011-03-24 16:58:14
User: lkj
Functions: alias echo sleep
9
Screensaver

Console screensaver.

Alternatives

There are 6 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

Maybe anyone could make it "remember" the consoles contents? Should try to open a new shell or somewhat like this?

Comment by nkoehring 193 weeks and 5 days ago

This leaves the terminal in the color of the last emitted character after you do ^C

Comment by TheGuyOfDoom 193 weeks and 4 days ago

@nkoehring: I do not understand. Maybe you need just run `reset`?

@TheGuyOfDoom: Just type `reset` afret ^C.

Comment by lkj 193 weeks and 3 days ago

@nkoehring: Now I get it. It can be done with `screendump` but needs root permission to run it and I am not sure how to run it on ptsX - it is easy on ttyX.

Tou can use sth like:

TEMP_FILE=`tempfile` ; sudo screendump > $TEMPFILE ; screensaver ;

# after ^C

cat $TEMP_FILE ; rm $TEMPFILE

#-----

It can be done in script with `trap`. You can make function:

function restore_screen() {

cat $TEMP_FILE

rm $TEMP_FILE

}

and trap SIGINT liki this:

trap restore_screen SIGINT

If you will do that in script it will restore your tty after ^C.

Comment by lkj 193 weeks and 3 days ago

If you run screen, you could put that into an idle command, and also make it run it in a new screen so that it doesn't mess up your old terminal.

E.g.

idle 300 eval "screen screensaver" "idle 0"

My .screenrc has this:

idle 300 eval "screen ncmatrix -f -o -u 10" "idle 0"

Comment by unhammer 191 weeks and 5 days ago

Your point of view

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