tty command HowTo - Linux / Unix Q & A from nixCraft

Bash Check If Shell Is Interactive or Not Under Linux / Unix Oses

last updated November 5, 2012 in BASH Shell

How do I check in GNU/Bash if a shell is running in interactive mode or not while writing shell scripts?

last updated September 14, 2011 in Linux

What is a tty under Linux / UNIX? How do I find out what tty I’m on?