I disagree with your recommended code, but not your data.

For a while loop, I like to write the main exit condition into the while statement. There could be many ways for the loop to exit past the main, expected condition. However, I code the "most likely" case into the conditional statement.

Example: 

my $line;
while ( (print "list of letters: "),$line=<>, $line !~ /\s*quit|exit|q
+\s*$/i)
{..do something with this line...}

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In the above, a "my" variable cannot be defined and be used within the same comma statement or logical "and" statement, hence the "my $line;" before the loop conditional.

I do recommend using named variables for all while loops that go into production code.

In the above, using "and" instead of the "," would be just fine. The truthfulness of a comma statement only has to do with the value of the last part.

In reply to Re^2: $_ not set in while <> by Marshall
in thread $_ not set in while <> by pidloop

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