Here's the same thing, but with a single regular expression pattern...
while (<DATA>) {
next unless m{
^
( aixFsMountPoint | aixFsSize | aixFsFree ) # $1
\.
( \d+ ) # $2
\s* = \s*
( .* ) # $3
}ix;
$data{$1}{$2} = $3;
}
But there are plenty of excellent config file (INI file) modules on CPAN for doing this work.
Also, beware the use of the i modifier to match case-insensitively tokens you're then going to use as the keys of a hash.
aixFsMountPoint ≠ aixfsmountpoint ≠ AIXFSMOUNTPOINT
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