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Disc space issues and purging of files

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# 1  
Old 02-08-2013
Question Disc space issues and purging of files
Hi All,

I am looking forward to create a unix shell script to purge the files.

The requirement is:

1) Do df -k and check the current space occupied for the /a1 folder.
2) If the space consumed is greater than 90 %, delete all the DEF* files from a subfolder /a1/archive.

Example:

df -k results in:
Code:
/dev/lv02         4194304    412292   91%    94883    10% /a1

Since the space is consumed > 90 % (91% in this case), the following files needs to be deleted:
Code:
/a1/ARCHIVE/DEF111.txt
/a1/ARCHIVE/DEF112.txt
/a1/ARCHIVE/DEF113.txt
/a1/ARCHIVE/DEF114.txt
/a1/ARCHIVE/DEF115.txt
/a1/ARCHIVE/DEF116.txt

Thanks in advance!
Last edited by Franklin52; 02-12-2013 at 03:06 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 02-08-2013
Ok, can you show us what you have tried?
# 3  
Old 02-08-2013
Quote:
Originally Posted by bipinajith
Ok, can you show us what you have tried and how you are stuck?
Since I have no prior unix experience, I have no script composed as of now.
# 4  
Old 02-08-2013
You can try something like below:
Code:
 
used=$( df -k "/a1" | awk 'NR > 1 { sub("%",X,$4); print $4 } ' )       # Get used percentage for folder: a1
 
if [ $used -gt 90 ]                                                     # Check if it is greater than 90
then
        echo rm -f /a1/ARCHIVE/DEF*.txt                                 # If yes, remove all /a1/ARCHIVE/DEF*.txt files
fi

Note: Remove highlighted echo if o/p looks good.
# 5  
Old 02-08-2013
Quote:
Originally Posted by bipinajith
You can try something like below:
Code:
 
used=$( df -k "/a1" | awk 'NR > 1 { sub("%",X,$4); print $4 } ' )       # Get used percentage for folder: a1
 
if [ $used -gt 90 ]                                                     # Check if it is greater than 90
then
        echo rm -f /a1/ARCHIVE/DEF*.txt                                 # If yes, remove all /a1/ARCHIVE/DEF*.txt files
fi

Note: Remove highlighted echo if o/p looks good.
Thanks Bipin!
I would test this script.
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