Shell commands from the top-level

Question

Apparently, I can use some shell commands from the top-level,

?- pwd.
/home/boris
true.

Others that work are ls, cd. Any idea where those are documented, or what others there are?

(This is on Linux, can't check if it also work on Windows).

Answer 1

This is library(shell), apparently autoloaded, not included in the official manual.

A link to the source: http://www.swi-prolog.org/pldoc/doc/swi/library/shell.pl?show=src