CODEWITHSUNDEEP
windowsbatch-filecommand-lineregistry
snips-n-snails
snips-n-snails

Reputation: 707

Non-interactively write to the registry without overwriting

I'm trying to use the reg add command (reg.exe) to write to the registry, but if the value already exists I don't want to overwrite it. Without the /f option it asks for confirmation, which I don't want. With /f it overwrites the value, which I also don't want.

Is there an easy way to add a registry value if it doesn't exist but leave it alone if it does, and not prompt the user?

Upvotes: 1

Views: 1715

Answers (2)

Compo
Compo

Reputation: 38708

As per my comment…

Because you have reported having to decline the overwrite prompt, I would suggest you pipe the expected N into your REG command:

Echo N|Reg Add "HK…… >Nul

Upvotes: 1

user6811411
user6811411

Reputation:

As reg returns errorlevels it can be as simple as
(using conditional execution on && success or || fail )

reg query "hkcu\console" /V ColorTable15 >NUL 2>&1  &&( echo Val exists) ||(echo Val not there)
Val exists

reg query "hkcu\console" /V ColorTable16 >NUL 2>&1  &&( echo Val exists) ||(echo Val not there)
Val not there

Upvotes: 0

Related Questions