How to backup hard disk timely?

rsync -av --link-dest=$(ls -1d /backup/*/ | tail -1) /data/ /backup/$(date +%Y%m%d%H%M)/

'data' is the directory to backup, 'backup' is directory to store snapshots. Backup files on a regular basis using hard links. Very efficient, quick. Backup data is directly available. Same as explained here : http://blog.interlinked.org/tutorials/rsync_time_machine.html in one line. Using du to check the size of your backups, the first backup counts for all the space, and other backups only files that have changed.

Sample Output

/backup# du -hs .
1.5G	.
/backup# du -hs *
1.4G	201008042142
15M	201008042150
24M	201008050022
/backup# du -hs 201008042142; du -hs 201008050022
1.4G	201008042142
1.4G	201008050022

By: dooblem

2010-08-05 19:36:24

date ls rsync tail backup rsync

1 Alternatives + Submit Alt

How to backup hard disk timely?

Creates files in $DATE and hardlinks existing files to $PREVDATE. Thus full backup in each directory. Only drawback is changed modification time. Recommend a wrapper script to determine $DATE and $PREVDATE. Works like a charm. (Dirvish handrolled)
This is sample output - yours may be different.
5

rsync -a --link-dest=/media/backup/$HOSTNAME/$PREVDATE '--exclude=/[ps][ry][os]' --exclude=/media/backup/$HOSTNAME / /media/backup/$HOSTNAME/$DATE/

danam · 2010-01-30 08:36:41 43

What Others Think

The above command gives the details regarding how to back up the hard disk timely. In this thread, you will get best online engagement rings store the sample output of the command that helps you to easily understand the command. I am looking here for more updates on that and keep sharing the details here.

Alyssalauren · 154 weeks and 5 days ago

This is definitely a helpful post. Here they are discussing how to backup hard disk timely and everything is well explained including the code Schools in Oman so hope this will be useful for the people like me who have doubts about the topic

Juvanta · 150 weeks and 2 days ago

avideh · 145 weeks and 5 days ago

rahimhh21 · 117 weeks and 5 days ago

Perfecthomepugs · 108 weeks and 6 days ago

pugpuppies95 · 71 weeks ago

yeneba6574 · 25 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Similar Commands

Backup your hard drive with dd

Back Up a disk to an image in your home directory

Mount a partition from within a complete disk dump

hard disk information - Model/serial no.

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)