ECHO: Displays messages, or turns command echoing on or off.

The `ECHO` command in Windows Command Prompt is used to output text to the screen. Here are some examples: Example 1: Simple text expression:

ECHO Hello, world!

Description: Returns the text "Hello, world!" on the screen. Example 2: Save text to a file:

ECHO This is an example > example.txt

Description: Creates a file named "Example.txt" and stores the text "This is an example" in it. Example 3: ECHO without line break:

ECHO| SET /P=This text is output without line breaks

Description: Outputs the text without adding a line break. Example 4: Variables and ECHO:

SET Name=John
ECHO My name is %Name%

Description: Uses a variable and prints the text "My name is John". Example 5: ECHO in a batch file:

@ECHO OFF
ECHO This is a batch file.
ECHO Press a button to continue...
PAUSE > ZERO

Description: A simple batch file that outputs text and waits for user input. Example 6: ECHO in a loop:

FOR /L %i IN (1, 1, 5) DO ECHO This is line %i

Description: Uses a loop to output the text "This is line [number]" five times. Example 7: Show help:

ECHO.
ECHO Example: Using the ECHO command
ECHO.

Description: Uses ECHO to output a blank line and a heading. The `ECHO` commands are useful for displaying information while running batch files or while working in the command prompt. Note that some special characters, such as `>` or `|`, have special meanings when used in conjunction with `ECHO` and may need to be treated differently. In this case, you could use quotation marks or escape the special characters with a double arrow (`^>`, `^|`).

Microsoft Windows [Version 10.0.19045.3693]
(c) Copyright 1985-2023 Microsoft Corp.

C:\\WINDOWS>

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

  ECHO [ON | OFF]
  ECHO [message]

Type ECHO without parameters to display the current echo setting.

There are a few important aspects to keep in mind when using the `ECHO` command in the Windows Command Prompt: 1. Special character output: Some special characters, such as `>` or `|`, may produce undesirable results when used directly with `ECHO`. In such cases, it is advisable to use quotation marks or escape the special characters.

    ECHO "This is an example with > and |"
    ECHO This is an example with ^> and ^|
    

2. ECHO in batch files: In batch files, it is common practice to use `@ECHO OFF` at the beginning to suppress the output of each command in the batch file. Then if you want to print out specific commands, you can use `@ECHO ON` or `ECHO` in the batch file. 3. Variables and ECHO: When using variables in conjunction with `ECHO`, you must ensure that you reference the variables correctly. Variable names are enclosed with `%`.

    SET Name=John
    ECHO My name is %Name%
    

4. ECHO redirection: You can redirect the output of `ECHO` to a file. For example:

    ECHO This is an example > example.txt
    

5. ECHO and Pipe (`|`): If you use `ECHO` with a pipe (`|`), make sure it is a single command. In a batch context it might be necessary to use `CALL ECHO` when combining ECHO with a pipe.

    CALL ECHO This is an example | MORE
    

6. ECHO without newline: If you want to use `ECHO` without newline, you can use `SET /P`.

    ECHO| SET /P=This text is output without line breaks
    

7. Empty line with ECHO: If you want to output an empty line, you can just use `ECHO.`.

    ECHO.
    

8. Use escape characters: When working with special characters directly in the command prompt, it may be necessary to use escape characters (`^`) to prevent unwanted effects.

    ECHO This is an example with ^> and ^|
    

9. Show Help: You can use `ECHO` to show help text or instructions while running batch files.

    ECHO.
    ECHO Example: Using the ECHO command
    ECHO.
    

It is important to consider the specific requirements of your task and ensure that `ECHO` is used correctly to achieve the desired results.