The echo utility writes its arguments, separated by blanks
and terminated by a newline, to the standard output. If
there are no arguments, only the newline character will be
written.
echo is useful within scripts such as /etc/rc to display
text to the console.
To mark the beginning or end of some scripted operation,
include echo commands like these in the script that controls
the sequence of commands to be executed on the
filer...
echo Start the operation...
:
(do the operation)
:
echo Stop the operation.
When this sequence is executed, the following will be displayed
on the console...
Start the operation...
:
(other console output)
:
Stop the operation.