Mac support

[HBir]

This is a very neat script, however it doesn't seem to work on mac.
I get this error:
line 43: exec: watch: not found

[ehammond]

Thanks for reporting this.

I googled [how do I install watch on a mac] and got this:

https://osxdaily.com/2010/08/22/install-watch-command-on-os-x/