GNU bug report logs - #6511
df output difficult to parse

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Pádraig Brady <P <at> draigBrady.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#6511: closed (df output difficult to parse)
Date: Thu, 24 Mar 2011 00:15:03 +0000

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Your message dated Thu, 24 Mar 2011 00:11:40 +0000
with message-id <4D8A8C3C.10403 <at> draigBrady.com>
and subject line df no longer wraps lines
has caused the GNU bug report #6511,
regarding df output difficult to parse
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
6511: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6511
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From: Valerio Pachera <sirio81 <at> gmail.com>
To: submit <at> debbugs.gnu.org
Subject: df output difficult to parse
Date: Fri, 25 Jun 2010 17:43:22 +0200

Package: GNU coreutils
Version: 8.5

Severity: wishlist

Description:
I'm trying to parse di output of df command to check how much free
space is left on my disks.
I need to check this by a script.
The problem is that, when the device name is long, we get a new line
in the output (see example below).
It's difficult then have data relate with the device name or mount
poiunt usign grep and awk.

Proposed Solution:
simply add an option to not wrap the output text.

File system           Dim. Usati Disp. Uso% Montato su
/dev/mapper/VolGroup00-testing
                      9,2G  3,3G  5,5G  38% /
tmpfs                 1,5G     0  1,5G   0% /lib/init/rw
udev                   10M  224K  9,8M   3% /dev
tmpfs                 1,5G   12K  1,5G   1% /dev/shm
/dev/mapper/VolGroup00-dati
                      120G   77G   38G  68% /mnt/dati
/dev/mapper/VolGroup00-opt
                      5,0G  963M  3,8G  21% /opt
/dev/mapper/VolGroup00-var
                      5,0G  974M  3,8G  21% /var
fileserver:/pubblica  1,4T  579G  722G  45% /media/pubblica
proxy:/mnt/dati/ftp   9,8G  7,3G  2,0G  79% /media/ftp
/dev/sdb1             977M  852M  125M  88% /media/VALERIO


###### trying to extract used % ######

$ df -h /dev/mapper/VolGroup00-dati  | awk '{print $4}'
Usati

68%


$ df -h /dev/sdb1 | awk '{print $4}' | tr -d %
Usati
125M


Ad you can see, the colum 4 is not the same (used% in the first case,
Total space in the second).

Thank you

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From: Pádraig Brady <P <at> draigBrady.com>
To: 7157-done <at> debbugs.gnu.org, 6511-done <at> debbugs.gnu.org
Subject: df no longer wraps lines
Date: Thu, 24 Mar 2011 00:11:40 +0000

Since I've just changed df to no longer split
entries with long device names over two lines
(since it now aligns columns consistently),
I'm closing these.

cheers,
Pádraig

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