The ih command removes the current parameter from the currently active input buffer and replaces it with a null value or the specified string.
ih\ ih \ ih string
| \ | Inserts a new null parameter in the current position of the currently active input buffer. If the pointer is in the middle of a position, the position is truncated starting at the current position and a new null parameter is added after the truncation. |
| string | Inputs the specified string, including all leading and trailing spaces, into the active input buffer at the current pointer position. |
Stores n into the input buffer location, giving the operator two ways to say no.
s1 o print (y/n=<return>) + ihn ip: