Quick Answer: How Do I Comment Out A Line In A Batch File?

What is batch file with example?

A batch file is a script file in DOS, OS/2 and Microsoft Windows.

It consists of a series of commands to be executed by the command-line interpreter, stored in a plain text file.

Unix-like operating systems, such as Linux, have a similar, but more flexible, type of file called a shell script.

The filename extension ..

What is echo command in Windows?

Command. In computing, echo is a command that outputs the strings it is being passed as arguments. It is a command available in various operating system shells and typically used in shell scripts and batch files to output status text to the screen or a computer file, or as a source part of a pipeline.

What does pause do in a batch file?

Purpose: Suspends execution of a batch file until a key is pressed.

How do you comment out a batch file?

Comments in batch files are usually placed in lines starting with REM (REMarks). If you have many lines REM ed out, this may slow down COMMAND.

How do you comment out a line in CMD?

echo hello & rem a comment. A comment is produced using the REM command which is short for “Remark”. This makes it easy to keep track of multiple sets of values when doing exploration, tests of concept, etc. This approach works because ‘&’ introduces a new command on the same line.

How do you comment on a script?

Creating Single Line Comments To create a single line comment in JavaScript, you place two slashes “//” in front of the code or text you wish to have the JavaScript interpreter ignore. When you place these two slashes, all text to the right of them will be ignored, until the next line.

What does @echo off do?

The ECHO-ON and ECHO-OFF commands are used to enable and disable the echoing, or displaying on the screen, of characters entered at the keyboard. The ECHO-OFF command suppresses echoing for the terminal attached to a specified process. …

How do you insert a comment with more than one line?

To comment more than one line:Select all the lines that you would like to be commented.Press Ctrl + / Two slashes “//” will be added to the front of each line, causing them to be recognized as a comment.

What Is REM in command line?

REM [comment] Purpose: Provides a way to insert remarks (that will not be acted on) into a batch file. Discussion. During execution of a batch file, DOS will display (but not act on) comments which are entered on the line after the REM command. You cannot use separators in the comment except the space, tab, and comma.

What are the DOS commands?

MS-DOS and command line overviewCommandDescriptionTypedeltreeDeletes one or more files or directories.ExternaldirList the contents of one or more directory.InternaldisableRecovery console command that disables Windows system services or drivers.RecoverydiskcompCompare a disk with another disk.External139 more rows•Dec 6, 2020

Are batch files dangerous?

BAT. A BAT file is a DOS batch file used to execute commands with the Windows Command Prompt (cmd.exe). … The danger: A BAT file contains a series of line commands that will run if it is opened, which makes it a good option for malicious programmers.

How do you comment multiple lines?

The keyboard shortcut to comment multiple in Windows is shift + alt + A .

How do you comment multiple lines in shell script?

Follow the steps given below for commenting multiple using the terminal.First, press ESC.Go to the line from which you want to start commenting. … use the down arrow to select multiple lines that you want to comment.Now, press SHIFT + I to enable insert mode.Press # and it will add a comment to the first line.

How do you write a batch file?

Step 1: Select and open your editor. As mentioned earlier, text documents are a good starting point for batch scripts. … Step 2: Familiarize yourself with batch commands. … Step 3: Create and save a batch file. … Step 4: Run the new batch script. … Step 5: Editing batch files retrospectively.

How do you comment out a line in bash?

In Bash, everything after the hash mark ( # ) and until the end of the line is considered to be a comment. If you have any questions or feedback, feel free to leave a comment.

What Is REM programming?

REM stands for REMark. You can use the REM statement to put comments in you program that tell anyone listing the program what is happening at a specific point. (