Scan path incorrect

[scuba-tech]

When checksum-tracker.sh is ran, it is noticed that the script will recursively analyze from where the script is called from and not start the analysis from where the script itself is located.

This is to say that when the script will only behave properly when called via ./, and attempting to call from anywhere else will run the analysis tree from that location (the location that would be shown with pwd ran immediately beforehand)

Hypothesis: line 207 [ dir=${1:-'.'} ] needs to be updated to reflect the location of the script itself, and not the shell's working directory...