Linux Tutoral - Backup Lab
Lab Exercise:
System Backups
Note: Should you be a standard user or a super user for
backup operations?
1) Create a local backup respository
mkdir /home/backups/
2) Enumerate the size of the data for backup
du -hs /etc /home /var /root
3) Backup the data using your specific Student ID and
timestamp
time tar cvzf $USERNAME_`date +%Y%m%d_%H%M`.tar.gz
/home /var /root
/etc
4) Synchronize the backup to a remote server
rsync -huv /home/backups/h00123456_20140716_1100.tar.gz
h00123456@remotehost:/home/backups/
=============================================
483 mkdir /opt/backups
484 # Changed to OPT to avoid backing-up the backup.
485 cd /opt/backups/
486 # I'm now in /opt/backups
487 pwd
488 du -hs /etc /home /var /root
489 # just for fun... we'll use a basic calculator...
490 # Note: this is the uncompressed size.
491 echo "25+240+669+4.5" | bc
492 # The total backup size is .9GB
493 # Note: this is the uncompressed size
494 # time tar cvzf x00123456_`date +%Y%m%d_%H%M`.tar.gz
495 # The # sign is a comment...
496 # Let
497 # Let's look at the date command...
498 date +%Y%m%d_%H%M
499 #so... userid_date.tar.gz....
500 time tar cvzf x00123456_`date +%Y%m%d_%H%M`.tar.gz /etc /home /root /var
501 ll
502 echo "463/900" | bc
503 # now... let's remotely archive it...
504 # rsync -huv x00123456_20140716_1634.tar.gz [email protected]:/home/backups/
505 # Let's check our aliases
506 alias
507 # Note: rsync already has a time statement...
508 rsync -huv x00123456_20140716_1634.tar.gz [email protected]:/home/backups/
509 history