Zipping files older than one month


 
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# 1  
Old 04-07-2008
Zipping files older than one month

I have to zip all files older than a month within a directory.
I have to archive them using the file extension
I have .dat, .csv ,.cnt files within the directory.

I used the following command It doesnt work
find /path/*.dat -mtime +30
This command doesnot display .dat files older than a month

I used a different method which is tedious, but does the zipping month wise

zip dat_zip.zip `ls -rtl *.dat|grep Jan |awk '{print $9}'`

After doing this I have the zip files in the zip directory, but if i remove Jan files from the folder using this command
ls -rtl *.dat | grep Jan | awk '{print $9}' | rm *.dat
I lose all the dat files for other months too.
As per my knowledge '|' gives o/p from previous command as I/p for next command , why am i losing all the .dat files(from other months too)

Guru's Please shed some light.

Thanks and Regards,
Ram.
# 2  
Old 04-07-2008
Try:

Code:
find /path -name "*.dat" -mtime +30

Regards
# 3  
Old 04-07-2008
Quote:
ls -rtl *.dat | grep Jan | awk '{print $9}' | rm *.dat
This is basically equivalent to

Code:
ls -rtl *.dat | grep Jan | awk '{print $9}' >/dev/null
rm *.dat

so no wonder your *.dat files are gone. The right syntax for using the pipeline (and avoiding the Useless Use of grep | awk) is

Code:
ls -rtl *.dat | awk '/Jan/{print $9}' | xargs rm

or you could use backticks, but they are always a bit perilous, IMHO.
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