rsync -abviuzP src/ dest/
-i turns on the itemized format, which shows more information than the default format
-b makes rsync backup files that exist in both folders, appending ~ to the old file. You can control this suffix with --suffix .suf
-u makes rsync transfer skip files which are newer in dest than in src
-z turns on compression, which is useful when transferring easily-compressible files over slow links
-P turns on --partial and --progress
--partial makes rsync keep partially transferred files if the transfer is interrupted
--progress shows a progress bar for each transfer, useful if you transfer big files
symbolic link
sudo ln -s /home/sangah/edms/ /home/sangah/SAPP/DEV_PMIS/web/data/edms