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Old 02-03-2010, 05:05 PM   #1
buee
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Registered: May 2009
Posts: 81

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Using awk to grab first number series


Hello, just wondering if this can be done as I'd like to use it in a script.

I want to take this:
Code:
root@ubox:~$ du /etc
80	/etc/laptop-mode/conf.d
4	/etc/laptop-mode/lm-ac-start
4	/etc/laptop-mode/lm-ac-stop
4	/etc/laptop-mode/nolm-ac-start
4	/etc/laptop-mode/batt-start
4	/etc/laptop-mode/nolm-ac-stop
124	/etc/laptop-mode
16	/etc/defoma/config
160	/etc/defoma/hints
204	/etc/defoma
8	/etc/firefox-3.5/pref
12	/etc/firefox-3.5/profile/chrome
48	/etc/firefox-3.5/profile
60	/etc/firefox-3.5
8	/etc/byobu
4	/etc/opt
68	/etc/speech-dispatcher/modules
12	/etc/speech-dispatcher/clients
96	/etc/speech-dispatcher
8	/etc/xulrunner-1.9.1
And just keep the file sizes at the very beginning, no spaces, no letters, nothing after the first series of numbers. Then I want to output those to a file to be added together later. I can handle the addition part, but awk confuses me

If it has any bearing, the endgame here is to create a script that will count files and file sizes, add them together on a daily basis to come up with a total. We have a NAS for computer backups and I would like to be able to look at one line of text and see how much data and file count we've backed up from today.
 
Old 02-03-2010, 05:08 PM   #2
rweaver
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Registered: Dec 2008
Location: Louisville, OH
Distribution: Debian, CentOS, Slackware, RHEL, Gentoo
Posts: 1,833

Rep: Reputation: 163Reputation: 163
If you want a total number for a specific directory like /etc...
Code:
du -s /etc
I would also suggest that you use rsync to do your backup and you can get a summary from it along with any problems it encountered during the operation...

You could also use cut to grab just the numbers...

Code:
du /etc | cut -f1
But totaling that up is going to yield a lie because of the way du displays data.

Last edited by rweaver; 02-03-2010 at 05:15 PM.
 
  


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