Loop through ASCII codes in batch file

Question

How do I loop through ASCII values (here, alphabets) and work on them?

I want to echo A to Z without having to type every character manually like for %%J in (

Answer 1

The simplest solution is to include this PowerShell one-liner in your bat script:

powershell "[char[]](65..90)"

It's not necessarily the fastest, though.

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Here's a VBScript solution similar to Hackoo's, but in a hybrid format not relying on writing an external .vbs file. Save it with a .bat extension. The cscript line is what triggers execution of the VBScript hybrid code.

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Or if you're more comfortable with JavaScript syntax, here's a Batch + JScript hybrid.

@if (@CodeSection == @Batch) @then
@echo off & setlocal

cscript /nologo /e:JScript "%~f0"
goto :EOF

@end // end Batch / begin JScript

for (var i=65; i<=90; i++) WSH.Echo(String.fromCharCode(i));