Rsync

General

• There are two different ways for rsync to contact a remote system: using a remote-shell program as the transport (such as ssh or rsh) or contacting an rsync daemon directly via TCP

Examples

• rsync -av -e ssh remoteuser@remotehost:/remote/dir /this/dir/
  • -a = archive = -rlptgoD
  • -r = copy directories recursively
  • -l = --links = When symlinks are encountered, recreate the symlink on the destination.
  • -p = --perms = This option causes the receiving rsync to set the destination permissions to be the same as the source permissions.
  • -t = --times = This tells rsync to transfer modification times along with the files and update them on the remote system.
  • -o = --owner
  • -g = --group
  • -D = --devices --specials
• check using the --delete option by first using the --dry-run (-n) option
• rsync -av --exclude 'subdir' ./TopLevelDir /Destination/Path
  • note the double dash in exclude
  • arg to --exclude can be a glob
• rsync -av -e ssh --filter="+ */" --filter="+ *.mp4" --filter="- *" gpu1:/home/shumakercd/raw_rosti_videos .
  • Use filter to add/subtract items to file list
  • find . -type d -empty -delete to remove empty directories after