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lang-bash
${(kM)parameters:#[[:alpha:]_][[:alnum:]_]#}(withextendedglob) for only the parameters that are variables.for k in ${(koM)parameters:#[[:alpha:]][[:alnum:]_]#}; do; [[ ${(M)parameters[$k]:#association*} ]] || continue; print -- "$k"; done(extendedglobneeds to be set) should give you a short list of variables to use depending on what data you are looking for. Changing[[:alpha:]]to[[:alpha:]_]will include associative arrays(or variables) which start with an underscore. Changingassociation*toscalar*orarray*orinteger*or*export*will give you the results of those types. "Variables and arrays" take a bit more work.