Direct command and using bat file difference?

Question

I can get image size with this code if I run direct cmd:

identify -format "%wx%h" E:\Image.jpg

(the result = 640x480)

However, if I put this code in a bat file,

@echo off identify -format "%wx%h" E:\Image.jpg

it doesn't work. so, (the result = h) ??

How can I do this. Thanks...

A script interprets %wx% as a (probably not defined) variable and replaces it with its value (probably nothing). The command line parser is slightly different: it keeps the literal %xw% when the variable is not defined. In a batch script. double the % to %% to escape them (treat them as a literal %): identify -format "%%wx%%h" E:\Image.jpg — Stephan
– Stephan, Commented Feb 5, 2023 at 12:58
in case, you are interested in the details, but be warned - it's hard stuff. — Stephan
– Stephan, Commented Feb 5, 2023 at 13:03

Chaos · Accepted Answer · 2023-02-05 13:20:02Z

1

Switch % to %% in a Batchfile. Your code should be something like: identify -format "%wx%h" E:\Image.jpg

answered Feb 5, 2023 at 13:20

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2 Comments

Are you sure, you didn't forget to double them? ;)

Thank you so much. It works. By the way how can I set a value this result.