>Is there a similar operator in Perl for ${variable##pattern} as there
is in korn shell.
As far as I can tell, no.
However, from
http://wwwcgi.rdg.ac.uk:8081/cgi-bin/cgiwrap/wsi14/poplog/man/1/ksh :
${parameter##word} Remove Largest Prefix Pattern. The word will
be expanded to produce a pattern. The parameter expansion then will
result in parameter, with the largest portion of the prefix matched by
the pattern deleted.
So
$variable =~ s/^(pattern){1}//g;
should be close in effect to the ksh
$variable = ${variable##pattern};
(see http://www.perldoc.com/perl5.6/pod/perlre.html)
In any case, it apears that ksh offers a limited capability of substring
processing through 4 varieties of parameter expansion ( (prefix,suffix)
by (smallest,largest) ). The ksh documentation says "pattern matching
notation (see patmat), rather than regular expression notation, will be
used to evaluate the patterns" but I can't find any relevant
documentation of "patmat" and doubt if it covers more than a small part
of the functionality provided by perl's regular expression facility.
-tristram
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