basic shell scripting

[viktta]

Hello,

I'm writting a little shell script.
This script contains 2 commands.
The first one, has to be executed in a new terminal.
The second one, in the terminal I executed my script.

The first command, is gonna make some calculations so it's gonna take some time (I need to see this information).


Any idea? Thank you all.

[fruitofloom]

could have sworn -e would be what you want, but the opened terminal would close right away.

What about:

Code: Select all

xterm -hold -e  "echo foo" &
echo foo

exit 0

"tee" comes to mind, to also write a logfile, but i don't get it sorted with a "forked" xterm. There should be a way to also log the calcualations (and i would really do that), but out of box i don't know.

[slackguy]

well what do you mean terminal ? do you mean /dev/pty, (or better, /dev/tty) ?

you can use chvt(1) to change terminals in a script. to open one you can use gettty perhaps without login, run by the script, depends on your needs

or do you you mean screen output ? (for that, fbcon is spiff)

[slackguy]

printf(1) "hello world\n" >> /dev/tty2 # if tty2 is there, if you just want output

bash can redirect streams (files that are copied to /dev/xxx) and even IP traffic (well awk can). and sockets are yet another trick.

but i'll stop there. there are just too many ways withotu knowing what you want

[aicardi]

Sounds an awful lot like homework.