if exist statement in DOS

@echo off

set filename=myfile.txt

if exist %filename% (
    echo File exists.
) else (
    echo File does not exist.
)

Explanation:

• @echo off: This command turns off the display of each command in the batch file as it executes.
• set filename=myfile.txt: This sets the variable filename to the name of the file you want to check.
• if exist %filename%: This checks if the file specified by the variable filename exists.
• echo File exists.: If the file exists, this command is executed.
• else: If the file does not exist, the commands following else are executed.
• echo File does not exist.: This command is executed if the file does not exist.

You can replace myfile.txt with the path to the file you want to check. Save the above code in a file with a .bat extension (e.g., checkfile.bat) and run it. It will display whether the file exists or not.