# v - increase verbosity
# r - recurse into directories
# l - copy symlinks as symlinks
# H - preserve hard links
# p - preserve permissions
# E - preserve the file's executability
# A - preserve ACLs (implies --perms)
# X - preserve extended attributes
# o - preserve owner (super-user only)
# g - preserve group
# D - same as --devices --specials
# --devices - preserve device files (super-user only)
# --specials - preserve special files
# t - preserve modification times
# z - compress file data during the transfer
# h - output numbers in a human-readable format
# P - same as --partial --progress
# --partial - keep partially transferred files
# --progress - show progress during transfer
# --log-file=/opt/rsync-sync.log
# -e 'ssh -p 3222' - specify the remote shell to use
# rsync -vrlHpEAXogDtzhP --log-file=/opt/rsync-sync.log -e 'ssh -p 3222' /opt root@nordico1.club:/opt
# 15 1 * * * rsync -vrlHpEAXogDtzhP --log-file=/opt/rsync-sync_nordico1.club.log -e 'ssh -p 3222' /opt root@nordico1.club:/opt 2>&1 > /opt/crontab_rsync-sync_nordico1.club.log
# 30 3 * * * rsync -vrlHpEAXogDtzhP --log-file=/opt/rsync-sync_nordico2.club.log -e 'ssh -p 3222' /opt root@nordico2.club:/opt 2>&1 > /opt/crontab_rsync-sync_nordico2.club.log
