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No need for all the extra layers. On my machine, the following does the same thing:

$ cmd1="ps -efwww | grep sbin"
$ cmd2="bash -c '$cmd1'"
$ results=$(ssh -q myhost "$cmd2")or simply

$...

In the following line, the quotes are no-ops.

eval "ZONENAME=\$zone$ZONENUM"They get stripped away, resulting in the following line, which eval then interprets:

ZONENAME=$zonezndvux02Even if...

>So: the 'eval' do NOT evaluates value in double quotations or after backslash, but removes that quotations and backslashes!

Not exactly. Remember, the shell parses the entire line one time...