filename substitution question

[Doug Gwyn]

In article <1627 at ncar.ucar.edu> rob at scdpyr.ucar.edu (Robert Montgomery) writes:
>Often it would be simpler to specify what I *don't* want in filename
>substitution than what I do.  For example, I would like to do something
>similar the following:
>	ls {NOTfrog}.c
>and have it produce:
>	bird.c		fish.c

Unfortunately the shell's pattern expansion capabilities support only
a subset of the regular expression capabilities that you might expect
of a UNIX utility.  However, therein lies the clue: use some other
UNIX utility.  For example:
	ls `echo *.c|sed 's/frog.c/ /'`
Not as convenient as what you really want, but at least the capability
is available.