< 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)