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Linux script - help!!


 
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# 1  
Old 08-12-2013
Linux script - help!!

I need to create a bash script to run through crontab, to do the below job:

1- find files that are over 12 months old in /var "files are like file_201201222.mtd file_201201333.mtd
2- Tar them in /backup like: file_201201.tar.bz2 "every month in one tar file"
3- remove them after that
4- Send an email with the files deleted

Your help is highly appreciated!
Thanks in Advance
# 2  
Old 08-12-2013
you can find files older than 12 months with this command:
find /var -name "*.mtd" -ctime +360
to remove them after it finds them use
find ./ -name "*" -ctime +360 -exec rm {} \;
sending an email can be done with the
mail -s "Subject" user@tosend.com < /tmp/maildata.txt

Good luck
# 3  
Old 08-12-2013
Thank you very much for the helpful syntax. But can you attend to point number 2 as well Smilie

---------- Post updated at 10:42 PM ---------- Previous update was at 10:41 PM ----------

It will be helpful to find and Tar in the same step
# 4  
Old 08-12-2013
you can use something like:

Code:
find /var -type f -name "file_201201*mtd" -mtime +365 2>/dev/null | tar cvfj file_201201.tar.bz2 {} +

# 5  
Old 08-12-2013
Thanks very much again, but can you explain it quickly Smilie
# 6  
Old 08-12-2013
ctime will also match files whose attributes have been recently changed, so in this case I would go with mtime instead.

Also, you don't mention your operating system so I'm gonna assume you are using GNU find which have some neat extra features. You could try:
Code:
find /var -type f -name "file_*.mtd" -mtime +365 | xargs tar -jcf somefile.tar.bz2 --remove-files && mailx -s "Some Stuff" user@domain.com

Keep in mind that the above command will only match files that are actually older than 12 months, regardless of their name (as long as they match the model "file_*.mtd").

That however doesn't take care of the monthly tar, so here's a better (untested) approach. You may need to change the date format but that is left as an exercise for you.
Code:
for month in $(seq -f %02g 1 12); do
	find /var -type f -name "file_$(date +%Y)${month}$(date +%d).mtd" -mtime +365 | \
	xargs tar -jcf "file_$(date +%Y)${month}.tar.bz2" --remove-files \
	&& echo "Some Stuff" | mailx -s "Subject" user@domain.com
done


Last edited by verdepollo; 08-12-2013 at 08:19 PM.. Reason: fixed mailx
# 7  
Old 08-13-2013
Thanks, will try this and let you know
I'm using Fedora btw.

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