gives a list of files and pipes to which all input is echoed.


  • You can use $Echo to keep a file of all your input commands.


Basic Examples  (1)

Echo input to a temporary file:

Get the file name:

Append the stream to the list of streams that input is being echoed to:

Enter commands in cells with "RawInputForm" style:

Restore $Echo to its default, and close the stream:

Show the contents of the file:

Introduced in 1988