[clug] Pseudoterminal

Bryan Kilgallin (iiNet) kilgallin at iinet.net.au
Tue Sep 5 01:15:36 UTC 2017

> A problem arose when I tried to distinguish between pseudoterminal 
> interfaces tty and pts. If the former were in use, then I wanted the 
> terminal title line to begin "Terminal "... instead.

I solved it thus.

	set pseudoterminal (tty | cut -c 6-8)
	if test $pseudoterminal = 'tty'
		echo Terminal
		echo Pseudoterminal

When will tty show a "tty", and when a "pts"?

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