=== pendejo ===
To copy files from remote to local, maintaining file properties and sym-links (-a), zipping for faster transfer (-z), verbose (-v).  
  rsync -avz host:file1 :file1 /dest/
  rsync -avz /source host:/dest

Copy files using checksum (-c) rather than time to detect if the file has changed. (Useful for validating backups). 
  rsync -avc /source/ /dest/

Copy contents of /src/foo to destination:

This command will create /dest/foo if it does not already exist
  rsync -auv /src/foo /dest

Explicitly copy /src/foo to /dest/foo
  rsync -auv /src/foo/ /dest/foo

LMGM MAIL work mails
  #rsync --dry-run --itemize-changes --stats -h --archive /run/media/barriot/1AB6-AB2B/Mail /home/barriot/Documents/Mail/work/Mail 
  
  rsync --dry-run --itemize-changes --stats -h --archive /run/media/barriot/1AB6-AB2B/Mail/Local/ /home/barriot/Documents/Mail/Local/WORK.Local.sbd/
  
  # pendejo /home/barriot/box.local on biskit (run as root)
  rsync --dry-run --archive --hard-links --delete --acls --xattrs --one-file-system --itemize-changes --stats -h --exclude='*/.thumbnails' --exclude='*/Cache' --exclude='*/.cache' --exclude='*/.gvfs' --exclude='.local/share/Trash/' /home/barriot/box.local/ /run/media/barriot/ext/pendejo.barriot/box.local/ 
  
  # TEACHING USB
  rsync --dry-run --itemize-changes --stats -h --archive /run/media/barriot/1AB6-AB2B/TEACHING/2016-2017/L2-L3-Bioinfo/ box.local/TEACHING/2016-2017/L2-L3-Bioinfo/


AMAP
  rsync --dry-run --itemize-changes --stats -h --archive box/Administrative_stuff/amap/ box.local/Administrative_stuff/amap/
  rsync --dry-run --itemize-changes --stats -h --archive box.local/Administrative_stuff/amap/  box/Administrative_stuff/amap/

System and data backup
  # linux
  time rsync  --dry-run --exclude '*.fucked.up' --itemize-changes -a --stats -h /boot/ /run/media/barriot/barracuda3t/pendejo/boot/
  time rsync  --dry-run --exclude 'win7-HardDisk1.vdi' --exclude '*.fucked.up' --itemize-changes -a --stats -h --hard-links --acls --xattrs --one-file-system / /run/media/barriot/barracuda3t/pendejo/rootfs/
  time rsync  --dry-run --exclude .cache --exclude 'win7-HardDisk1.vdi' --exclude '*.fucked.up' --itemize-changes -a --stats -h /home/ /run/media/barriot/barracuda3t/pendejo/home/
  # win
  time rsync  --dry-run --exclude '*.fucked.up' --itemize-changes -a --stats -h --hard-links --acls --xattrs --one-file-system /mnt/win_boot/ /run/media/barriot/barracuda3t/pendejo/sda1.WD500Gb.win7_boot/
  time rsync --dry-run --exclude '*.fucked.up' --itemize-changes -a --stats -h --hard-links --acls --xattrs --one-file-system /mnt/win_sys/ /run/media/barriot/barracuda3t/pendejo/sda2.WD500Gb.win7_C/
  
=== clone sth like the usb key you bootde from ===
partitions (lsblk)
  sdc      8:32   1    15G  0 disk 
  ├─sdc1   8:33   1     1G  0 part 
  ├─sdc2   8:34   1   548M  0 part /run/media/lambo/hpboot
  ├─sdc3   8:35   1     1G  0 part /run/media/lambo/hphome
  └─sdc4   8:36   1  12.4G  0 part /run/media/lambo/hpsystem

then rsync(s)
  time rsync  --dry-run --itemize-changes -a --stats -h /boot/ /run/media/lambo/hpboot/ 
  time rsync  --dry-run --itemize-changes -a --stats -h --hard-links --acls --xattrs --one-file-system / /run/media/lambo/hpsystem/
  time rsync  --dry-run --itemize-changes -a --stats -h /home/ /run/media/lambo/hphome/

tests & edit & run
  mount --bind /dev /run/media/lambo/hpsystem/dev
  # same for sys & proc
  # edit /boot/grub2/grub.cfg for uuids
  ll /dev/disk/by-uuid/
  chroot /run/media/lambo/hpsystem/
  # grub2-install /dev/sd?? /dev/sda or /dev/sdb or /dev/sdc usually
  umount /run/media/lambo/hpsystem/dev
  umount /run/media/lambo/hpsystem/proc
  umount /run/media/lambo/hpsystem/sys
  umount /run/media/lambo/hpsystem/home
  umount /run/media/lambo/hpsystem/boot
  umount /run/media/lambo/hpsystem
  /run/media/lambo/boot
  # reboot

== links ==

  * https://opensource.com/article/19/3/backup-solutions