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Writing a Windows batch script

  • Difficulty Level : Basic
  • Last Updated : 24 Nov, 2020

In Windows, the batch file is a file that stores commands in a serial order. Command line interpreter takes the file as an input and executes in the same order. A batch file is simply a text file saved with the .bat file extension. It can be written using Notepad or any other text editor.

A simple batch file will be

ECHO GeeksforGeeks

After saving it with .bat extension. Double click it to run the file. It prints shows

In above script, ECHO off cleans up the console by hiding the commands from being printed at the prompt, ECHO prints the text “GeeksforGeeks” to the screen, and then waits for the user to press a key so program can be ceased.

Some basic commands of batch file

  • echo – Prints out the input string. It can be ON or OFF, for ECHO to turn the echoing feature on or off. If ECHO is ON, the command prompt will display the command it is executing.
  • cls – Clears the command prompt screen.
  • title: Changes the title text displayed on top of prompt window.
  • EXIT – To exit the Command Prompt.
  • pause – Used to stop the execution of Windows batch file.
  • :: – Add a comment in the batch file.
  • COPY – Copy a file or files

Types of “batch” files in Windows

  1. INI (*.ini) – Initialization file. These set the default variables for the system and programs.
  2. CFG (*.cfg) – These are the configuration files.
  3. SYS (*.sys) – System files, can sometimes be edited, mostly compiled machine code in new versions.
  4. COM (*.com) – Command files. These are the executable files for all the DOS commands. In early versions there was a separate file for each command. Now, most are inside COMMAND.COM.
  5. CMD (*.cmd) – These were the batch files used in NT operating systems.

Lets take another example,
Suppose we need to list down all the files/directory names inside a particular directory and save it to a text file, so batch script for it will be,

@echo off 
Rem Listing all the files in the directory Program files 
dir "C:\Program Files" > C:\geeks_list.txt 
echo "Done!"

Now when we run this batch script, it will create a file name geeks_list.txt in your C:\ directory, displaying all the files/folder names in C:\Program Files

Another useful batch script that can be written to diagnose your network and check performance of it.

:: This batch file checks for network connection problems.
:: View network connection details
ipconfig /all
:: Check if is reachable
:: Run a traceroute to check the route to

This script displays,

This script gives information about the current network and some network packet information. ‘ipconfig /all’ helps to view the network information and ‘ping’ & ‘tracert’ to get each packet info. Learn about ping and traceroute here.

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