If you are familiar with the command line, you can use your prior knowledge to help you create a batch file. A batch file is a Windows file with the .bat extension. You can use scheduled batch jobs to alert on these. Below is an example of the code I used to do this. A lot of times the batch job is just a monitoring tool that might be scheduled to check for new incoming data files in a specific directory. Check If a File Exists. If only ASSOC is written and executed, it will display all the file associations for every extension, instead of just .txt extension. However, it is often desirable to execute a particular section of a batch file … A batch file is a collection of MS-DOS and Windows command line commands used on a computer. Behind that, you can write the file name and the action that should be executed in the case that the file exists.

Generally, the execution of a batch file proceeds line-by-line with the command(s) on each line being run in turn. The batch command ASSOC associates a file extension with a file type, or list all associations.. As shown in above output, it displays the file association for .txt extension. @echo OFF ASSOC | find ".txt" pause. 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. aceee. In this tutorial you will learn about batch file operators, if else, goto and for loop. Batch Script - If Statement - The first decision-making statement is the â ifâ statement. A batch file may contain any command the interpreter accepts interactively and use constructs that enable conditional branching and looping within the batch file, such as IF, FOR, and GOTO labels. Here is an example: IF EXIST c:\test.txt notepad c:\test.txt. Author Topic: batch file, to see if file/folder exist (Read 99344 times) 0 Members and 1 Guest are viewing this topic. Commands in batch programs also supports all the operators that other scripting languages support. On Sun, 23 Jul 2006 23:00:31 +1000, Michael Bednarek wrote: > On 23 Jul 2006 11:58:50 GMT, Bernd Oninger wrote in alt.msdos.batch.nt: > >>How do I implement boolean AND and OR operators in if commands in msdos batch files ? I have a batch file that we run on our new builds so that if the user 'administrator' logs on, the registry opens on particular keys that I want our help desk guys to fill in. Merci quand même d'avoir pris le temps de m'envoyer des liens pour clarifier les conditions en batch.-----Voici la solution que j'ai trouvé dans mon cas : @ECHO OFF REM Run JAVA script in order to modify file C:\Users\azerty\Desktop\fichierz.txt IF %errorlevel% EQU 0 ( echo Ok %errorlevel% ) else ( echo Nok %errorlevel% ) PAUSE Another useful situation where an IF statement in a batch file is to check for the existence of a data file. Step 3 − Write the name of the file as shown in the following image and press the Enter button to execute the batch file. I was recently playing around with batch scripts (*.bat files) - but what I wanted to do with the script snowballed and I found I needed more functionality, the main one being to be able to execute commands based on user input.