.ios ¶A list of open IO spaces, and their corresponding identifiers and
names, can be obtained using the .info ios command. You can
use the .ios command to switch back to a particular IO space
by providing an expression that evaluates to its identifier:
(poke) .ios 1 The current IOS is now `foo.o'. (poke) .ios $</bin/ls> The current IOS is now `/bin/ls'.