> On Fri, Feb 8, 2013 at 2:06 AM, Jim Gibson <jimsgib...@gmail.com> wrote:
>>
>> The null filehandle (<>) will read from standard input if @ARGV is empty,
>> and from the members of @ARGV, interpreting each scalar as a file name to be
>> opened automatically in succession.
>>
>> Does that do what you want?
>>
>>
Actually, somehow with perl -n it can tell if it's being piped into
and you can -t STDIN. That doesn't seem to work otherwise. Is there a
way of telling if it's being piped in data otherwise so that I can
present a message? Right now, I have:
BEGIN {
$SIG{INT} = sub { blah }
}
But, as this requires a user to kill the process in order to get a
help message, this isn't ideal.
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