code.delx.au - monosys/blob - scripts/backup-generic

   1 #!/bin/bash -e
   2
   3 # Run this at a lower priority to avoid disrupting the rest of the system
   4 ionice -c 3 -p $$
   5 renice -n 19 -p $$ > /dev/null
   6
   7 (
   8 # Only allow one backup to run at a time
   9 if ! flock -n -x 200; then
  10         echo "Failed to get a lock!"
  11         exit 1
  12 fi
  13
  14 # Exclude other filesystems from the backup. This leaves only the files we
  15 # want, on the root file system, to back up.
  16 # Also exclude other large collections of files which we don't care to save.
  17 rdiff-backup \
  18         --preserve-numerical-ids \
  19         --exclude-sockets \
  20         --exclude '/home/*/tmp' \
  21         --include '/home' \
  22         --exclude '/backup' \
  23         --exclude '/tmp' \
  24         --exclude '/var/cache' \
  25         --exclude '/var/log' \
  26         --include '/var' \
  27         --exclude-other-filesystems \
  28         / /backup/
  29
  30
  31 # Remove old backups to free up some space
  32 rdiff-backup -v1 --force --remove-older-than 365D /backup/
  33
  34 ) 200>/var/run/backup
  35
  36 exit 0
  37