pear(1) on Linux
The text b3f94c3c6b2c, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
PEAR installer
Flags it lists
-
-? -
-C -
-D -
-G -
-S -
-V -
-c -
-d -
-h -
-q -
-s -
-v -
-y