Gary V. Vaughan wrote:
Probably your shell has cached the location of the previously
installed M4. Run
'hash -r' or equivalent at the command line to make it actually look
in the path
again.
Thanks Gary, this was indeed the problem.
BTW, what's the purpose of "hash"? I read the help on it, but it only
explains how to use it, not what its rationale is. Clearly it's a
command cache, but does looking in the search path for an executable
take so much more time that a location cache was warranted in the shell?
Thanks again,
John
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