Stop shell wildcard character expansion?

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No. The expansion takes place before the command is actually run.
You can only disable the glob before running the command or by quoting the star.

$ # quote it
$ foo '*'

$ # or escape it
$ foo \*

$ # or disable the glob (noglob)
$ set -f
$ foo *

$ # alternative to set -f
$ set -o noglob
$ # undo it by 
$ set +o noglob

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