$ perl -le'$_ = "MiXeD CaSe ExAmPlE"; print; s/([[:alpha:]])/ $1 eq "\
+U$1" ? "\L$1" : "\U$1" /eg; print'
MiXeD CaSe ExAmPlE
mIxEd cAsE eXaMpLe

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In reply to Re: Reversing string case by jwkrahn
in thread Reversing string case by perlpal

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