Declaring a variable in batch and using it in one line

Question

Is it possible to declare a variable and use it in the same line? For example (this doesn't work):

set foo="bar" && echo %foo%

to print bar.

Do you want to use it on the command line or in a batch file? That makes a difference — jeb, Sep 24 '19 at 13:18
`cmd /V:ON /C "set "var=hello" & echo !var!"` (from the answer to the duplicate) — Stephan, Jul 21 '21 at 07:13

score 2 · Accepted Answer · answered Sep 24 '19 at 13:16

2

set "foo=bar" && call echo %^foo%

answered Sep 24 '19 at 13:16

Paulo Campez

1

...why does this work? The location of the caret means the `f` is being escaped. – SomethingDark Sep 24 '19 at 13:36
Is there a way to use this variable to redirect an output ? For example, I want to write `baz` in the file `bar` like this `set "foo=bar" && call echo baz > %^foo%` – subuniverse Sep 24 '19 at 13:37
Upon further investigation, the caret is unnecessary. – SomethingDark Sep 24 '19 at 16:28

1 Answers1