Cannot get the value and assign to a variable

Question

I have try to use the following to get the MD5 for the txt. Output it to other file and rescan. dumb method but seem it return nothing every time.

(certutil -hashfile %targetfolder%\%baseName%%n%\inventory_2.0.1.bck MD5 | find /v "hash" | find /v "") > rootfs_md5
set /p texte =< D:\script\rootfs_md5
echo %texte%

Also try the following method without temp file but seem also return null

for /f %%i in (certutil -hashfile %targetfolder%\%baseName%%n%\inventory_2.0.1.bck MD5 | find /v "hash") do set VAR=%%i
echo %VAR%

any reason for that

Answer 1

Here's examples for each of the methods you attempted.

Using a temporary file:

@Set "FileHash="
@%SystemRoot%\System32\certutil.exe -HashFile "%targetfolder%\%baseName%%n%\inventory_2.0.1.bck" MD5 2>NUL | %SystemRoot%\System32\find.exe /V ":" 1>"D:\script\rootfs_md5"
@If Not ErrorLevel 1 Set /P "FileHash=" 0<"D:\script\rootfs_md5"
@If Defined FileHash Del "D:\script\rootfs_md5" & Echo %FileHash: =%

Without temporary file:

@Set "FileHash="
@For /F "Delims=" %%G In ('%SystemRoot%\System32\certutil.exe -HashFile "%targetfolder%\%baseName%%n%\inventory_2.0.1.bck" MD5 2^>NUL ^| %SystemRoot%\System32\find.exe /V ":"') Do @Set "FileHash=%%G"
@If Defined FileHash Echo %FileHash: =%