Simple script to backup (many) remote server files. Includes a lock to avoid concurrent execution.

backup_remote_sever.sh

#!/bin/sh

TARGET=/Volumes/Backup/vserver
SOURCE="root@server01:/folder;root@sever02:/folder"
EXCLUDE="--exclude='.DS_Store'"
LOCK="/tmp/backupserver.lock"

if [ -f "$LOCK" ]; then
  echo "locked… remove $LOCK to proceed" >&2
  exit 1
else
  echo $$ > $LOCK
fi

mkdir -p $TARGET

if [ -d "$TARGET" ]; then

  for source in $(echo $SOURCE | tr ";" "\n")
  do
    FOLDERNAME=$(echo $source | sed -E -e 's/[\:\/]/_/g' -e 's/[\_]+/_/g')
    FOLDER=$TARGET/$FOLDERNAME
    echo "sync $source -> $FOLDER/"
    # to avoid problems in filename encoding on a mac use --iconv=UTF8-MAC,UTF-8 (rysnc 3+ required)
    rsync $EXCLUDE --include="core" --cvs-exclude --verbose --compress --archive --progress --human-readable --delete $source $FOLDER/
  done

fi

rm -f $LOCK