"...is there any compelling reason not to do a "local $_;" at the beginning of every subroutine?"

Yes, doesn't fix the problem. Any time you call a function, subroutine or method it could blow away $_. And you will never have control of other peoples code so if you rely on $_ not being hosed you'll eventually get burnt. Far better is to practice defensive programing and not rely on $_ after all the perl syntax in all cases allows you to specify something other that the default input/output scalar.

s//----->\t/;$~="JAPH";s//\r<$~~/;{s|~$~-|-~$~|||s |-$~~|$~~-|||s,<$~~,<~$~,,s,~$~>,$~~>,, $|=1,select$,,$,,$,,1e-1;print;redo}

In reply to Re^3: cpan install($_) doesn't work in loop, but normal lexical var does by starbolin
in thread cpan install($_) doesn't work in loop, but normal lexical var does by tphyahoo

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