Windows 2019
Sponsored Link

OpenSSH : Use SSH-Agent
Use SSH-Agent to automate inputting passphrase on key-pair authentication.
[1] SSH-Agent is installed by default with OpenSSH Client programs but it is disabled by default, so turn to enabled and also Start the service.
Logon with a user that set SSH key-pair and add secret key like follows.
PS > ssh-add (secret key's PATH)
# display added identity list
PS > ssh-add -l
# if remove all identities, run like follows (if remove a specific identity, specify [-d] option)
PS > ssh-add -D
Matched Content