Assign the CMD command execution result to a variable

for example , I hope that git Code commitid Get and add it to the folder to mark which package is in the folder git Node construction .

git The order is git rev-parse --short HEAD

stay linux Under the system , Just execute the following command ：

commitid=`git rev-parse --short HEAD` 

echo commitid=$commitid

But in windows Under the system , But you can't use single quotation marks directly , To use for Flexible , The order is as follows ：

for /F %%i in ('git rev-parse --short HEAD') do ( set commitid=%%i)
echo commitid=%commitid%

Reference resources ：
bat/cmd Assign the result of command execution to a variable
The batch reads the second line of text and assigns it to a variable