The emask command sets X.3 parameter 20.
It lets you decide which characters are not echoed to the screen. Possible values are:
Mask Value |
Characters Not Echoed |
---|---|
1 |
CR |
2 |
LF |
4 |
VT, HT, FF |
8 |
BEL, BS |
16 |
ESC, ENQ |
32 |
ACK, NAK, STX, SOX, EOT, ETB, ETX |
64 |
DEL, CAN, DC2 |
128 |
All other control characters |
To set more than one value, add them together. For example the default value is 192, which means 128 plus 64.