You could split on anything that wasn't an uppercase letter ([^A-Z]), capturing what you split on, do your ucfirst lc in a map then concatenate the results with join.

$ cat companies
WOOLWORTHS
CAP GEMINI
AVIVA
AMERADA HESS
RUN4LIFE
$ perl -pi.bak -e '$_ = join q{}, map { ucfirst lc } split m{([^A-Z]+)
+};' companies 
$ cat companies
Woolworths
Cap Gemini
Aviva
Amerada Hess
Run4Life
$

[download]

I hope this is useful.

Cheers,

JohnGG

In reply to Re: Case Munging by johngg
in thread Case Munging by mikeraz

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