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tcsh -X behavior



Could we have the tcsh -X behavior in zsh conditional expressions?

The tcsh manual says:

         X   Executable in the path or shell builtin, e.g.  ` - X
             ls'  and  ` - X  ls - F' are generally true, but `-X
             /bin/ls' is not (+)

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Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.org/> - 100%
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