[SOLVED] How many lines showing in a window

waddles · 09-21-2013, 12:01 PM

In my script I want to know how many lines of data a users window is displaying.
I'm faily certain it isn't tput but my recollection is it is a short command name like that. Help?
This may require knowing the type of terminal a user has. How can I find that info?

colucix · 09-21-2013, 12:08 PM

Maybe it's just tput. Have you tried it?

Code:

tput lines

waddles · 09-21-2013, 09:24 PM

I scanned the man page and from that concluded it was used primarily to set same. There is a command sequence which is used to set terminal features which I can't remember that I was thinking was what was needed so locked in and have been reminded of tput lines. I did not see the option lines in the man page can U so direct me?
AND YES I HAVE NOW TRIED IT YEA!! --Dah! A BIG thanks for that as it is exactly what I needed.

Habitual · 09-21-2013, 09:32 PM

tput cols gets no respect, I tell ya.

waddles · 09-21-2013, 09:43 PM

LOL I noted that cols when I scanned the tputs and thought it strange there was nothing for rows.

tronayne · 09-22-2013, 07:04 AM

Something I've done forever is add this to the top of my ~/.profile:

Code:

#       set up default columns and lines
COLUMNS=80
LINES=40

followed by some other stuff, then, the last lines of ~/.profile:

Code:

#       make COLUMNS and LINES the screen size
eval `resize`

Take a look at the manual page for resize, probably get you to where you want to go.

Hope this helps some.

Mark Pettit · 09-22-2013, 08:28 AM

Under my shell, a simple 'echo $LINES" displayed 37, then I resized the window and tried again and it displayed 25. So that shell variable would seem to contain the value dynamically.

Skaperen · 09-22-2013, 11:22 AM

I've always parsed the output of "stty -a" to get the number of rows and columns. Thanks for letting me know about tput. I never knew about that. Maybe that's because I never used ncurses. Now I won't need to parse (at least where ncurses is installed).

waddles · 09-22-2013, 03:49 PM

Real great ideas pplz! The one I couldn't remember was stty so double thanks for that.