Current File : //usr/local/share/zsh/5.8/help/unset
unset [ -fmv ] name ...
Each named parameter is unset. Local parameters remain local even
if unset; they appear unset within scope, but the previous value
will still reappear when the scope ends.
Individual elements of associative array parameters may be unset
by using subscript syntax on name, which should be quoted (or the
entire command prefixed with noglob) to protect the subscript from
filename generation.
If the -m flag is specified the arguments are taken as patterns
(should be quoted) and all parameters with matching names are
unset. Note that this cannot be used when unsetting associative
array elements, as the subscript will be treated as part of the
pattern.
The -v flag specifies that name refers to parameters. This is the
default behaviour.
unset -f is equivalent to unfunction.
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