Save output of a command as a variable (Windows command prompt)

Question

Say I have the command:

python --version > PythonVersion.txt

A file called PythonVersion.txt is created. In my case the contents are "Python 3.9.13".

Can the output of a command be saved as a variable? I'd like to be able to do something like the following:

@echo off
set "PythonVersion=python --version"
echo Your Python installation is: %PythonVersion%

The expected output might be Your Python installation is: Python 3.9.13, but of course the above script isn't valid and produces Your Python installation is: python --version.

Anders · Accepted Answer · 2022-11-29 01:15:28Z

1

@echo off
for /F "delims=" %%a in ('python --version') do @set lastline=%%a
echo.%lastline%

If the output is multiple lines, you might have to filter the command output with ^| find ... to just get the line you are interested in (unless you want the last line) because for will loop until there are no more non-empty lines...

answered Nov 29, 2022 at 1:15

Anders

102k15 gold badges126 silver badges183 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Save output of a command as a variable (Windows command prompt)

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related