[conspire] Cool trick- reposition a window (e.g. Firefox) programmatically

[Tony Godshall]

Assumptions:

You've installed wmctrl from you favorite distro's repo (e.g. #
apt-get update && apt-get install wmctrl )

You've already got Firefox running

1. calculate the dimensions, in this case I want firefox to be full
width, bottom half

$ DISPGEOM=$(xwininfo -root|awk '/-geometry/{print $2}')
$ echo $DISPGEOM
1280x800+0+0

$ DISPW=$(echo "$DISPGEOM"|cut -dx -f1); echo $DISPW
1280
$ DISPH=$(echo "$DISPGEOM"|cut -dx -f2|cut -d+ -f1); echo $DISPH
800

$ let H=DISPH/2
$ let W=DISPW
$ let x=0
$ let y=DISPH-H

2. Tell the window manager to use that size for the window with
Firefox in its title

$ wmctrl -a 'Firefox' -e 0,$x,$y,$W,$H

Read the manpage for caveats.  Tested to work fine with compiz and
metacity (the defaults for Ubuntu with Appearance ,Effects, None and
Extra.

Best Regards.