gia90 / android-external-display Goto Github PK

$ xrandr | grep "VIRTUAL.*disconnected" | head -1 | awk '{print $1}'
$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
VGA-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 885mm x 498mm
   1920x1080     60.00*+  59.94    50.00    29.97    25.00    23.97    60.05    60.00    50.04  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1366x768      59.79  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32  
   720x576       50.00    50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94  
$

$ printf '%.0f' $(bc <<< "scale=2; sqrt(540^2+960^2)")
bash: printf: 1101.45: invalid number
$ printf '%.0f' 2202.90
bash: printf: 2202.90: invalid number
$ printf '%.0f' 2202,90
2203