Resolution
vzup2date supports 2 modes of non-interactive operation: batch and messages.The 'batch' mode is intended for unattended updates with human-readable reports like these:
# vzup2date -m batch list
Downloading releases information. Please wait...done
Downloading updates information for 3.0.0. Please wait...done
Downloading detailed updates information. Please wait...done
Your Virtuozzo installation is up to dateThe 'messages' mode also provides an unattended update mechanism with messages-based output suitable for machine processing, like these:
104
MsgId: 1
Argv: vzup2date -m messages list
CheckPoint: start
Pid: 6604
StatusLogFile:
Type: checkpoint
71
MsgId: 2
Progress: init
Type: longop
Downloading releases information
40
MsgId: 3
Progress: finish
Type: longopKeywords: automatic unattended update vzup2date batch