...strict and warnings, i am unable to get out of " Inappropriate ioctl for device "...
Your mistake was checking $! when you weren't supposed to.
Do not use $! to determine if a failure occured.
perlvar says the value of $! is meaningful only immediately after a failure:
if (open(FH, $filename)) {
# Here $! is meaningless.
...
} else {
# ONLY here is $! meaningful.
...
# Already here $! might be meaningless.
}
# Since here we might have either success or failure,
# here $! is meaningless.
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