linux tips.sh

rsync -azP --delete source_dir/ destination
#  -a          (archive mode) sync option (recursion, keep the same symlinks, preserve file attributes ex. premissions, time)
#  -z          compress file data during the transfer
#  -P          show progress
#  --delete    delete extra files
#  -e          specify the remote shell to use

rsync -azP --delete -e "ssh -p 22 -i ~/.ssh/key" source destination
# receiving file list ...
# 1 file to consider
# x
#  3581704033 100%    1.28MB/s    0:44:18 (xfer#1, to-check=0/1)
#
# sent 38 bytes  received 1300387893 bytes  488592.12 bytes/sec
# total size is 3581704033  speedup is 2.75