Main Course
Let’s say we have an output from xrandr --listactivemonitor like this:
Monitors: 2
0: +*eDP-1 1920/344x1080/194+1920+0 eDP-1
1: +HDMI-2 1920/480x1080/270+0+0 HDMI-2
Now, we want to display only the second row which is this line:
0: +*eDP-1 1920/344x1080/194+1920+0 eDP-1
We can do that using awk with this command:
xrandr --listactivemonitor | awk 'NR==2'
or using process substitution command, like this:
awk 'NR==2' <(xrandr --listactivemonitor)
If we also want to limit the row and the column, let’s say the second row and the third column which is result in this:
1920/344x1080/194+1920+0
We can do that with this command:
xrandr --listactivemonitor | awk 'NR==2 {print $3}'
or using process substitution command, like this:
awk 'NR==2 {print $3}' <(xrandr --listactivemonitor)
Now, if we want to display the second to last row, which is this line:
0: +*eDP-1 1920/344x1080/194+1920+0 eDP-1
1: +HDMI-2 1920/480x1080/270+0+0 HDMI-2
We can do that with this command:
xrandr --listactivemonitor | awk 'NR>=2'
or using process substitution command, like this:
awk 'NR>=2' <(xrandr --listactivemonitor)
Alright, that’s all. Thanks for reading and happy shell scripting!