character "`"
ASCII code 96. Common names: left quote; left single quote; open quote;
ITU-T: grave accent; grave. Rare: backprime;
INTERCAL: backspark; unapostrophe; birk; blugle; back tick; back glitch; push;
ITU-T: opening single quotation mark; quasiquote.
Back quote is used in
Unix shells to invoke command substitution.
(1996-11-26)