The echo command turns terminal character echo on or off. When terminal echo is off, characters entered from the keyboard are not displayed on the terminal screen.
Example(s)
echo who |
This output displays:
46 rlm krb |
echo |
Re-enables echo. This output displays:
who 46 rlm krb |
See Also
echo Statement, Full Duplex, Half Duplex, ignore-signals Command, p Command