CODEWITHSUNDEEP
batch-filecmdcommand
Alex
Alex

Reputation: 33

Command runs from CMD but not from batch-file

I can open the cash drawer by running the following command in CMD:

ECHO ^G>LPT1

Problem is that when I run this command from a batch file, nothing happens. I added a timeout to see what command actually runs and it seems like my command is automatically replaced with the following when it is run:

ECHO G 1>LPT1

How can I run my original command from a batch-file?
Thank you.

Upvotes: 0

Views: 854

Answers (4)

Declan McIlhatton
Declan McIlhatton

Reputation: 11

This seemed to work for me:

As Josefz Said:

Run CMD Prompt as administrator and type:

echo @echo(•^>COM5>c:\Drawer.bat

Change COM5 to whatever port your printer is on. I'm using a STAR TSP100IIIECO USB Using the virtual com port supplied with the star driver.

The result when opened in notepad is:

echo > COM5

As you will see notepad cannot display the special character but running the bat successfully kicks the drawer.

I know it's an old thread but hopefully this helps someone out.

Upvotes: 1

JosefZ
JosefZ

Reputation: 30238

If I can understand, you need to send BELL sound character (ASCII 0x07, Ctrl+G) to the LPT1 device.

Unfortunately, my text editor (and notepad.exe as well) brings Goto line dialogue after pressing Ctrl+G and another method Alt+07 advised here erroneously mojibakes to ASCII 0x95. Here's my workaround: from cmd command line, type

echo @echo(•^>LPT1>D:\bat\SO\32642290a.bat

where • represents either Ctrl+G or Alt+07 and displays ^G on a monitor.

Result:

32642290a_bat

Result in hexadecimal view:

32642290a_bat_HEX

Upvotes: 0

cat
cat

Reputation: 1

ECHO G 1>LPT1

is exactly the same as 

ECHO G>LPT1

the first is correct and the second is for msdos compatability and what we mostly use. CMD fixes it as it's in a batch file rather than typed and it gets to change what you see.

However to enter Ctrl + G in a text file use CMD redirection 

echo echo [ctrl+g]^>lpt1

if 32 bit use edit.com. In Edit press Ctrl P then Ctrl G (it will look different to cmd).

Upvotes: 0

foxidrive
foxidrive

Reputation: 41287

Double up the caret from ^ to ^^ as ^ alone is the escape character.

Upvotes: 2

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