>>/10245/
> The zfs version of the script "worked for me",
Just checked JbRNzN3J.
And, you're quite right, in it's line 47
while read ifile; do
there's a "$" symbol missing & it should instead be
while read $ifile; do

The 99TXGmW7 has all the extra line breaks in the variable declaration that involve commands.
No idea how these run with you (on which system/environment), but they cause errors over here (linux).
At any rate, and as I said, I don't think many use it, so I don't bother too much.
.... except of course for the small technicality with the extra line breaks, that indeed does baffle me!