With the help of @lzh on #perl I got this peace : 
perl -we '$tty=qx(tty); $tty=~s/.*d...(.*)/$1/; print $tty'

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to yield the pts/# out of tty's output(/dev/pts/#). I was just wondering if anyone would come up with something different or even faster. I have question though, why is $1 better than \1? \1 works, but Perl suggest using $1.

In reply to More than one way to do it??? by Anonymous Monk

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