[##:##] Command : echo [<string>]
The echo command echos its first argument. It is designed to help clients synchronize their commands with the server when operating asynchronously. Note that if there are any spaces in your string, then you will need to include the string in quotes.
For example:
[##:##] Command : echo SN#123456
SN#123456
[##:##] Command : echo hi mom
hi
[##:##] Command : echo "hi mom"
hi mom
See also : toggle , Communication