rsync is remote sync. It can be used to sync files between hosts. It's great for transferring files to/from another host.

Example:

$ rsync -rltvPh /source/path drc@127.0.0.1:/target/path

Args:

• -r: Recursive
• -l: Copy symlinks as symlinks
• -t: Preserve modification times
• -v: Print lots of stuff
• -P: Progress bar per file
• -h: Human readable
• -n: Dry run. Good for seeing what will be transferred/updated
• --delete: Delete extraneous files from destination directories, i.e. remove files from destination that are not in source