Rsync锅炉板脚本

Posted 2021-02-26

Great script found on http://www.scrounge.org/linux/rsync.html. Useful for creating boilerplate backup scripts

#!/bin/sh
 
# Simple rsync "driver" script.  (Uses SSH as the transport layer.)
# http://www.scrounge.org/linux/rsync.html
 
# Demonstrates how to use rsync to back up a directory tree from a local
# machine to a remote machine.  Then re-run the script, as needed, to keep
# the two machines "in sync."  It only copies new or changed files and ignores
# identical files.
 
# Destination host machine name
DEST="smpent"
 
# User that rsync will connect as
# Are you sure that you want to run as root, though?
USER="root"
 
# Directory to copy from on the source machine.
BACKDIR="/root/bin/"
 
# Directory to copy to on the destination machine.
DESTDIR="/root/bin/"
 
# excludes file - Contains wildcard patterns of files to exclude.
# i.e., *~, *.bak, etc.  One "pattern" per line.
# You must create this file.
# EXCLUDES=/root/bin/excludes
 
# Options.
# -n Don't do any copying, but display what rsync *would* copy. For testing.
# -a Archive. Mainly propogate file permissions, ownership, timestamp, etc.
# -u Update. Don't copy file if file on destination is newer.
# -v Verbose -vv More verbose. -vvv Even more verbose.
# See man rsync for other options.
 
# For testing.  Only displays what rsync *would* do and does no actual copying.
OPTS="-n -vv -u -a --rsh=ssh --exclude-from=$EXCLUDES --stats --progress"
# Does copy, but still gives a verbose display of what it is doing
#OPTS="-v -u -a --rsh=ssh --exclude-from=$EXCLUDES --stats"
# Copies and does no display at all.
#OPTS="--archive --update --rsh=ssh --exclude-from=$EXCLUDES --quiet"
 
# May be needed if run by cron?
export PATH=$PATH:/bin:/usr/bin:/usr/local/bin
 
# Only run rsync if $DEST responds.
VAR=`ping -s 1 -c 1 $DEST > /dev/null; echo $?`
if [ $VAR -eq 0 ]; then
    rsync $OPTS $BACKDIR $USER@$DEST:$DESTDIR
else
    echo "Cannot connect to $DEST."
fi