Abnormal memory usage by a simple bash script - linux

Question

I'm trying to figure out why this simple bash script has an ever increasing memory footprint when running
#!/bin/bash
while true
do
pid=$(xdotool search --name "TeamViewer")
if [ ! -z "$pid" ]; then
xdotool windowminimize $pid
fi
sleep 1
done
When I run watch cat /proc/meminfo and run the script, I see the memFree and memAvailable values drop at a steady rate. And it'll continue to happen until the system runs out of memory and has to fall back to swap, which is causing issues on my system
The original version of the script (below) was using memory at an even higher rate because of --sync, I think
#!/bin/bash
while true
do
xdotool search --name --sync "TeamViewer" windowminimize
sleep 5
done
Any help would be appreciated
I'm using a 2011 Macbook Pro running Linux Mint 18.1 with 8GB of RAM

Answer 1

Not sure exactly what happened but the issue has resolved itself somehow. Running this script no longer eats up memory.
#!/bin/bash
while true
do
pid=$(xdotool search --name "TeamViewer")
if [ ! -z "$pid" ]; then
xdotool windowminimize $pid
fi
sleep 1
done
This one still does though.
#!/bin/bash
while true
do
xdotool search --name --sync "TeamViewer" windowminimize
sleep 5
done
It's possible my testing methodology was flawed that caused me to believe that they both ate up memory.