Ubuntu
ncurses package

'tput cols' give strange results

Bug #187866 reported by Yves Le Berre
4
Affects Status Importance Assigned to Milestone
ncurses (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=7.10
DISTRIB_CODENAME=gutsy
DISTRIB_DESCRIPTION="Ubuntu 7.10"
-----------------------------------------------------------------------------------------------------------------------------------------------
dpkg -l ncurses-bin | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Nom Version Description
+++-==============-=====================-============================================
ii ncurses-bin 5.6+20070716-1ubuntu3 Terminal-related programs and man pages
-----------------------------------------------------------------------------------------------------------------------------------------------
root@ganymede:~# ps -ef | grep [g]nome-term
root 6132 1 0 09:48 ? 00:00:07 gnome-terminal --geometry=110x36

root@ganymede:~# echo $COLUMNS
110
root@ganymede:~# tput cols
110
root@ganymede:~# COLS=$(tput cols)
root@ganymede:~# echo $COLS
110
root@ganymede:~# COLS=$(tput cols 2>/dev/null)
root@ganymede:~# echo $COLS
80
root@ganymede:~# tput cols 2>/dev/null
110
-----------------------------------------------------------------------------------------------------------------------------------------------

Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :

Thanks for your report.
Confirmed in Intrepid. Same result with lines which returns 24 instead of 36.

$ apt-cache policy ncurses-bin
ncurses-bin:
  Installed: 5.6+20071124-1ubuntu2

Revision history for this message
Thomas Dickey (dickey-his) wrote :

It's expected behavior - in the "80" case, stdout is redirected,
so it's no longer a terminal. When this happens, the terminal
initialization falls back to the terminfo settings.

Thomas Dickey (dickey-his)
Changed in ncurses (Ubuntu):
status: Confirmed → Invalid
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