tlmgr --version (return code: 0)
(running on Debian, switching to user mode!)
tlmgr revision 39298 (2016-01-07 03:44:29 +0100)
tlmgr using installation: /usr/share/texlive
tlmgr -h (return code: 0)
(running on Debian, switching to user mode!)
tlmgr revision 39298 (2016-01-07 03:44:29 +0100)
usage: tlmgr OPTION... ACTION ARGUMENT...
where ACTION is one of:
backup
candidates
check
conf
dump-tlpdb
generate
get-mirror
gui
info
init-usertree
install
option
paper
path
pinning
platform
postaction
recreate-tlpdb
remove
repository
restore
search
uninstall
update
version
Use
tlmgr ACTION --help
for more details on a specific option, and
tlmgr --help
for the full story.