Bug: FortiOS 7.x ana-gw replied to 'execute dhcp lease-list all' with
"Interface name 'all' does not exist." — my error-pattern grep didn't
include that phrase, so the script thought it got valid data, bailed
out of the retry loop, and handed empty/garbage to the parser, which
produced zero output with no error.
Fix: try the plain `execute dhcp lease-list` form first (works across
versions we've seen), fall back to the `all` variant only if the plain
form returns nothing. Validate acceptance by grepping for an actual
IP-shaped token — the parser needs IPs anyway, so "got real data"
and "has at least one IP" are equivalent conditions.
vh
8f1a2789a9