Incorrectly copying Jenkins instances can break job symlinks.
This can cause
permalink errors in the logs and prevent job history from loading correctly,
even causing job builds to fail.
cp -Rp SOURCE TARGET
-R switch is for recursive and the
-p switch ensures that links are preserved.
rsync -avz -e ssh /src/dir firstname.lastname@example.org:dst/dir
NOTE Do not use
scp to copy Jenkins to another instance as scp does not preserve symlinks.