Sync data two server by rsync

Example

rsync -avrR --links --rsh=/usr/bin/ssh IP:/var/html/ /var/html
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Where,

• -avrR : archive mode (a), verbose (v), recurse into directories (r), use relative path names (R)
• --links : copy symlinks as symlinks
• --rsh=/usr/bin/ssh : Use to specify the remote shell ssh to use (secure copy).
• IP:/var/html/ : WWW2 server IP address and path to synchronize to www1 server
• /var/html : WWW1 server path

A small script:

#!/bin/bash
MASTER="master-server-ip"
DIR="/var/www/change-me"
LDIR="/local/dir"
SSH="/usr/bin/ssh"
rsync -avrR --links --rsh=$SSH $MASTER:$DIR $LDIR

Source: cybercit