MS-DOS and Windows command line echo command

Updated: 12/30/2021 by Computer Hope
Echo command entered at a command line C prompt.

The echo command repeats typed text back to the screen and can send text to a peripheral on the computer, such as a COM port.


Echo is an internal command that is available in the following Microsoft operating systems.

Echo syntax

Displays messages, or turns command-echoing on or off.

ECHO [message]

Type ECHO without parameters to display the current echo setting.

Echo examples

echo ata > com1

Depending on whether your modem was on com1, this command would make the modem try responding and a squealing noise from the modem. To stop the squealing, type echo atz > com1.

echo this is a test > test.bat

This command would put in the file test.bat "echo this is a test," then whenever you type in test, it would type in echo this is a test.

echo this is an example >> test.txt

The example above would echo "this is an example" then using ">>" would append that text into the test.txt file.

echo testing the echo string

This command would type on your screen, testing the echo string, and then take you back to the prompt.