Dos bat file

You can get a native win32 implementation of a Bourne shell here if you don't want to go the cygwin route. A native bash can be found here. I'm quite certain you could easily google other good alternatives such as zsh or tcsh.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 11 years, 11 months ago. Active 16 days ago. Viewed k times. How would you implement logical operators in DOS Batch files? Improve this question.

JoelFan JoelFan I submit for your viewing pleasure: pi. Add a comment. Active Oldest Votes. Improve this answer. Just to improve your answer a bit It would store value "true " in the variable The 'or' condition you describe is slick and works great for a range of numbers, but what if I am comparing 2 independent values, and not a range?

Dat IF Exist File2. Ryan McClue 3 3 silver badges 18 18 bronze badges. Dave Jarvis Dave Jarvis This means if name is "Yakko" or "Wakko" or "Dot", then echo "Warner brother or sister". OR is slightly tricky, but not overly so.

Timo Salmi Timo Salmi 3 3 silver badges 3 3 bronze badges. Does not work. If I give it Stack, it echoes. If I give it Overflow, it does not - it should. To start Notepad and close the CMD window: start notepad. This time the last line WILL be executed.

If you paste them into a word processor, be sure that you Save As a plain text file. Displaying a text file When large amounts of text are to be displayed to the screen from within a batch file, a more convenient alternative to ECHOing text to the screen is to place the text in a separate file and then display the contents of that file: TYPE afile. BAT to clean out temporary files during the boot. Note the use of redirection, covered in detail below. That output is piped through the FIND filter.

See replaceable parameters below for more information about them. The default destination for all command output is the device named CON - the console, or monitor. The NUL device, otherwise known as the "bit bucket", is a test device which is a virtual dead-end. In other words, the output gets sent nowhere. Redirection can also be used to respond to DOS commands. To avoid this we can redirect the contents of a file containing "Y" yes and a carriage return Enter as input to the DEL command: First, in the batch file folder, create a text file named YES containing the letter 'y" followed by a carriage return.

Like all commands, all batch file commands are not case sensitive. However, we listed the batch file commands in all caps to help with identification. The at symbol does not echo back text after the symbol. So now the you know the basic functioning of Batch files, let' move on to Batch file commands. The percent followed by a numeric value, beginning with one, allows you to add matched variables to a batch file.

The line below is an example of what can be used in a batch file. With a batch file containing the above line if you type myname name of bat file and then your name, as shown below. Two colons in front of any line are one of two ways of adding remarks into the batch file without displaying or executing that line when the batch file is run.

By adding a colon in front of a word, such as LABEL, you create a category, more commonly known as a label. A label allows you to skip to certain sections of a batch file such as the end of the batch file. Also see GOTO. A call is used to run another batch file within a batch file. When the batch file that is called is completed, the remainder of the original batch file is completed. If the batch file does not exist, you get an error.

See our how to use choice and set in a batch file page for an example of how you can create options in your batch file.